Rockwell C27 Steel | McMaster-Carr

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100,000 psi to 199,999 psi

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Rockwell C48 to Rockwell C51

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EAR99

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255 Products

About Steel

Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

Tight-Tolerance Hardened Multipurpose 4140 Alloy Steel Bars

Also known as flat stock, the thickness on these bars is held to a tight tolerance. They are hardened for increased abrasion and impact resistance. Made from versatile alloy steel, also known as chrome-moly steel, these bars resist fracturing from repeated stress. They’re used for a wide range of parts, including molds and structural supports.

Note: Bars may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Wd.	Fabrication	Heat Treatment	Yield Strength, psi	Hardness	Mechanical Finish	Specs. Met		3" Long	1/2 ft. Long	1 ft. Long	1 1/2 ft. Long	3 ft. Long	4 ft. Long	6 ft. Long	8 ft. Long
1/16" Thick (-0.002" to 0.002" Tolerance)



		1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K676	—	—	000000	—	000000	—	0000000	—


		2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K677	—	—	00000	—	00000	—	000000	—


		3/32" Thick (-0.002" to 0.002" Tolerance)



				1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K962	—	000000	00000	000000	00000	—	000000	—


				3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K963	—	00000	00000	00000	00000	—	000000	—
				1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K964	—	00000	00000	00000	00000	—	000000	—
				1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K965	—	00000	00000	00000	00000	—	000000	—
				2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K966	—	00000	00000	00000	00000	—	000000	—
				3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K967	—	00000	00000	00000	000000	—	000000	—
				4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K968	—	00000	00000	00000	000000	—	000000	—


				1/8" Thick (-0.002" to 0.002" Tolerance)



						1/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K516	—	00000	00000	00000	00000	—	00000	—


						1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K526	—	00000	00000	00000	00000	—	000000	—
						3/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K536	—	00000	00000	00000	00000	—	000000	—
						1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K11	—	00000	00000	00000	00000	—	000000	—
						3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K12	—	00000	00000	00000	00000	—	000000	—
						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K13	—	00000	00000	00000	00000	—	000000	—
						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K14	—	00000	00000	00000	00000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K15	—	00000	00000	00000	00000	—	000000	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K16	—	00000	00000	00000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K17	—	00000	00000	00000	000000	—	000000	—
						3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K18	—	00000	00000	00000	000000	—	000000	—


						4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K19	—	00000	00000	000000	000000	—	000000	—
						5"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K21	—	00000	00000	000000	000000	—	000000	—
						6"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K22	—	—	—	000000	000000	—	000000	—


						3/16" Thick (-0.002" to 0.002" Tolerance)



								3/16"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K94	—	00000	00000	00000	00000	—	000000	—


								3/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K546	—	00000	00000	00000	00000	—	000000	—
								1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K23	—	00000	00000	00000	00000	—	000000	—
								3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K24	—	00000	00000	00000	00000	—	000000	—
								1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K25	—	00000	00000	00000	00000	—	000000	0000000
								1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K26	—	00000	00000	00000	00000	—	000000	—
								1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K27	—	00000	00000	00000	00000	—	000000	—
								2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K28	—	00000	00000	00000	000000	—	000000	—
								2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K29	—	00000	00000	00000	000000	—	000000	—
								3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K31	—	00000	00000	00000	000000	—	000000	—
4"								Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K32	—	00000	00000	000000	000000	—	000000	—


5"	Hot Rolled							Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K33	—	00000	000000	000000	000000	—	000000	—
6"	Hot Rolled							Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K34	—	—	—	000000	000000	—	—	—


1/4" Thick (-0.002" to 0.002" Tolerance)



		1/4"						Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K95	—	00000	00000	00000	00000	—	000000	—


		3/8"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K556	—	00000	00000	00000	00000	—	000000	—
		1/2"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K35	—	00000	00000	00000	00000	0000000	000000	000000
		5/8"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K678	—	—	00000	—	00000	—	000000	—
		3/4"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K36	—	00000	00000	00000	00000	000000	000000	000000
		1"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K37	—	00000	00000	00000	00000	000000	000000	000000
		1 1/4"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K38	—	00000	00000	00000	00000	000000	000000	000000
		1 1/2"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K39	—	00000	00000	00000	00000	000000	000000	000000
		2"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K41	—	00000	00000	00000	000000	000000	000000	000000
		2 1/2"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K42	—	00000	00000	00000	000000	—	000000	—
		3"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K43	—	00000	00000	00000	000000	—	000000	—


		4"	Hot Rolled	Hardened				121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K44	—	00000	00000	000000	000000	—	000000	—
		5"	Hot Rolled	Hardened	121,000			Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K45	—	00000	000000	000000	000000	—	000000	—
		6"	Hot Rolled	Hardened	121,000			Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K46	—	—	—	000000	000000	—	000000	—
		8"	Hot Rolled	Hardened	121,000			Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K97	—	00000	000000	000000	000000	—	000000	—
		10"	Hot Rolled	Hardened	121,000			Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K98	—	000000	000000	000000	000000	—	000000	—


		5/16" Thick (-0.002" to 0.002" Tolerance)



				5/16"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K2	—	00000	00000	00000	00000	—	000000	—


				1/2"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K6	—	00000	00000	00000	00000	—	000000	—
				3/4"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K7	—	00000	00000	00000	00000	—	000000	—
				1"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K8	—	00000	00000	00000	00000	—	000000	—
				1 1/4"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K3	—	00000	00000	00000	00000	—	000000	—
				1 1/2"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K4	—	00000	00000	00000	000000	—	000000	—
				2"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K5	—	00000	00000	00000	000000	—	000000	—
				2 1/2"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K87	—	00000	00000	00000	000000	—	000000	—
				3"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K89	—	00000	00000	000000	000000	—	000000	—
				4"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K91	—	00000	00000	000000	000000	—	000000	—
				5"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K92	—	00000	000000	000000	000000	—	000000	—


				6"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K93	—	00000	000000	000000	000000	—	000000	—
				8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K99	—	000000	000000	000000	000000	—	000000	—
				10"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K301	—	000000	000000	000000	000000	—	000000	—


				3/8" Thick (-0.002" to 0.002" Tolerance)



						3/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K96	—	00000	00000	00000	00000	—	000000	—


						1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K47	—	00000	00000	00000	00000	000000	000000	000000
						5/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K679	—	—	00000	—	00000	—	000000	—
						3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K48	—	00000	00000	00000	00000	000000	000000	000000
						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K49	—	00000	00000	00000	000000	—	000000	—
						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K51	—	00000	00000	00000	000000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K52	—	00000	00000	00000	000000	—	000000	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K53	—	00000	00000	00000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K54	—	00000	00000	00000	000000	—	000000	—
3"						Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K55	—	00000	00000	000000	000000	—	000000	—
4"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K56	—	00000	000000	000000	000000	—	000000	—


5"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K57	—	00000	000000	000000	000000	—	000000	—
6"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K58	—	—	—	000000	000000	—	000000	—
8"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K401	—	000000	000000	000000	000000	—	000000	—
10"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K501	—	000000	000000	000000	000000	—	00000000	—


1/2" Thick (-0.002" to 0.002" Tolerance)



						1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K59	—	00000	00000	00000	00000	000000	000000	000000


						5/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K681	—	—	00000	—	00000	—	000000	—
						3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K61	—	00000	00000	00000	00000	000000	000000	000000
						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K62	—	00000	00000	00000	000000	000000	000000	000000
						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K63	—	00000	00000	00000	000000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K64	—	00000	00000	00000	000000	—	000000	—
						1 3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K682	—	—	00000	—	000000	—	000000	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K65	—	00000	00000	00000	000000	000000	000000	000000
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K66	—	00000	00000	000000	000000	—	000000	—
						3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K67	—	00000	00000	000000	000000	—	000000	—
						3 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K649	—	—	000000	—	—	—	—	—


		4"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K68	—	00000	000000	000000	000000	—	000000	—
		5"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K69	—	00000	000000	000000	000000	—	000000	—
		6"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K71	—	—	000000	000000	000000	—	000000	—
		8"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K601	—	000000	000000	000000	000000	—	000000	—
		10"	Hot Rolled			Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K701	—	000000	000000	000000	000000	—	00000000	—


		5/8" Thick (-0.002" to 0.002" Tolerance)



						5/8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K111	—	00000	00000	00000	000000	—	000000	—


						3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K566	—	00000	00000	00000	000000	—	000000	—
						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K112	—	00000	00000	00000	000000	—	000000	—
						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K683	—	—	00000	—	000000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K113	—	00000	00000	000000	000000	—	000000	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K114	—	00000	00000	000000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K684	—	—	00000	—	000000	—	000000	—
						3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K115	—	00000	000000	000000	000000	—	000000	—
						4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K116	—	00000	000000	000000	000000	—	000000	—
						6"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K117	—	—	—	000000	000000	—	000000	—
				8"		Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K801	—	000000	000000	000000	000000	—	00000000	—


				10"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K901	—	000000	000000	000000	000000	—	00000000	—


				3/4" Thick (-0.002" to 0.002" Tolerance)



						3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K72	—	00000	00000	00000	000000	000000	000000	000000


						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K74	—	00000	00000	00000	000000	000000	000000	000000
						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K685	—	—	00000	—	000000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K76	—	00000	00000	000000	000000	—	000000	—
						1 3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K686	—	—	00000	—	000000	—	000000	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K78	—	00000	000000	000000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K668	—	—	000000	—	—	—	—	—
						3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K81	—	00000	000000	000000	000000	—	000000	—
						3 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K669	—	—	000000	—	—	—	—	—
						4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K83	—	00000	000000	000000	000000	—	000000	—
						6"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K85	—	—	—	000000	000000	—	000000	—


8"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K907	—	000000	000000	000000	000000	—	00000000	—
10"	Hot Rolled					Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K908	—	000000	000000	000000	000000	—	00000000	—


1" Thick (-0.002" to 0.002" Tolerance)



						1"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K118	—	00000	00000	000000	000000	—	000000	—


						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K576	—	00000	000000	000000	000000	—	000000	—
						1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K119	—	00000	000000	000000	000000	—	000000	—
						1 3/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K671	—	—	000000	—	—	—	—	—
						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K121	—	00000	000000	000000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K586	—	00000	000000	000000	000000	—	000000	—
						2 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	89715K977	000000	—	—	—	—	—	—	—
						3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K122	—	00000	000000	000000	000000	—	000000	—
						3 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K672	—	—	000000	—	—	—	—	—
						4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K123	—	000000	000000	000000	000000	—	000000	—
						5"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K673	—	—	000000	—	—	—	—	—


						6"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K124	—	—	000000	000000	000000	—	00000000	—
						8"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K909	—	000000	000000	000000	000000	—	00000000	—
		10"				Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K912	—	000000	000000	000000	000000	—	00000000	—


		1 1/4" Thick (-0.002" to 0.002" Tolerance)



						1 1/4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K674	—	—	000000	—	—	—	—	—


						2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K675	—	—	000000	—	—	—	—	—


						1 1/2" Thick (-0.002" to 0.002" Tolerance)



								1 1/2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K596	—	000000	000000	000000	000000	—	000000	—


								2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K969	—	000000	000000	000000	000000	—	000000	—
								2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K883	00000	—	—	—	—	—	—	—
								4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K971	—	000000	000000	000000	000000	—	00000000	—


				2" Thick (-0.002" to 0.002" Tolerance)



								2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K973	—	000000	000000	000000	000000	—	00000000	—


								2"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	89715K979	00000	—	—	—	—	—	—	—
								3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	89715K981	000000	—	—	—	—	—	—	—
								4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K974	—	000000	000000	000000	000000	—	00000000	—
								4"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	89715K982	000000	—	—	—	—	—	—	—


								3" Thick (-0.002" to 0.002" Tolerance)



										3"	Hot Rolled	Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	8892K886	—	000000	—	—	—	—	—	—


3"	Hot Rolled									Hardened	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	89715K983	000000	—	—	—	—	—	—	—

Tight-Tolerance Hardened Multipurpose 4140 Alloy Steel Sheets

Also known as flat stock, the thickness on these sheets is held to a tight tolerance. They are hardened for increased abrasion and impact resistance. Made from versatile alloy steel, also known as chrome-moly steel, these sheets resist fracturing from repeated stress. They’re used for a wide range of parts, including molds and structural supports.

Note: Sheets may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Lg.	Fabrication	Yield Strength, psi	Hardness	Mechanical Finish	Specs. Met		Each
1/16" Thick (-0.001" to 0.001" Tolerance)



	6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T313	000000


	12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T314	000000
	12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T315	000000


	3/32" Thick (-0.001" to 0.001" Tolerance)



			6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T316	00000


			12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T317	000000
			12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T318	000000


			1/8" Thick (-0.001" to 0.001" Tolerance)



					3"	3"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T14	00000


					6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T11	00000
					6"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T15	000000
					12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T12	000000
					12"	24"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T19	000000
					12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T13	000000
					24"	48"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T311	00000000


					3/16" Thick (-0.001" to 0.001" Tolerance)



							3"	3"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T24	00000


							6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T16	000000
							6"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T25	000000
							12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T17	000000
							12"	24"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T29	000000
							12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T18	000000


							1/4" Thick (-0.001" to 0.001" Tolerance)



									3"	3"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T34	00000


									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T21	000000
									6"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T35	000000
									12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T22	000000
									12"	24"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T39	000000
									12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T23	000000


5/16" Thick (-0.001" to 0.001" Tolerance)



									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T319	00000


									12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T321	000000
									12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T322	000000


									3/8" Thick (-0.001" to 0.001" Tolerance)



									3"	3"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T44	00000


									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T26	000000
									6"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T45	000000
									12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T27	000000
									12"	24"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T49	000000
									12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T28	000000


			1/2" Thick (-0.001" to 0.001" Tolerance)



									3"	3"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T54	00000


									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T31	000000
									6"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T55	000000
									12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T32	000000
									12"	24"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T59	000000
									12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T33	000000
									24"	48"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T312	00000000


					9/16" Thick (-0.001" to 0.001" Tolerance)



									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T323	000000


									12"	12"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T324	000000
									12"	36"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T325	000000


									5/8" Thick (-0.001" to 0.001" Tolerance)



							3"	3"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T61	00000


							6"	6"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T36	000000
							6"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T62	000000
							12"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T37	000000
							12"	24"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T63	000000
							12"	36"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T38	00000000


3/4" Thick (-0.001" to 0.001" Tolerance)



							3"	3"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T64	00000


							6"	6"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T41	000000
							6"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T65	000000
							12"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T42	000000
							12"	24"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T66	000000
							12"	36"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T43	00000000


	1" Thick (-0.001" to 0.001" Tolerance)



							3"	3"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T67	00000


							6"	6"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T46	000000
							6"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T68	000000
							12"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T47	000000
							12"	24"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T69	00000000
							12"	36"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T48	00000000


			1 1/4" Thick (-0.001" to 0.001" Tolerance)



							3"	3"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T71	00000


							6"	6"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T51	000000
							6"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T72	000000
							12"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T52	000000
							12"	24"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T73	00000000
							12"	36"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T53	00000000


							1 1/2" Thick (-0.002" to 0.002" Tolerance)



							3"	3"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T74	000000


							6"	6"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T56	000000
							6"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T75	000000
							12"	12"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T57	00000000
							12"	24"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T76	00000000
							12"	36"			Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T58	00000000


							2" Thick (-0.001" to 0.001" Tolerance)



									6"	6"	Hot Rolled	121,000	Rockwell C27 (Hard)	Precision Ground	ASTM A829	4468T326	000000

Shim Stock

Cut into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.

You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.

18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.

Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.

						Certificate
	Thk.	Thk. Tolerance	Temper Rating	Specs. Met	Form	Type	Form		Each
18-8 Stainless Steel







				6" Wide × 12" Long

				0.005"	-0.00025" to 0.00025"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K319	00000


				0.01"	-0.0005" to 0.0005"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K321	0000




						6" Wide × 25" Long

						0.005"	-0.00025" to 0.00025"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K322	00000


						0.008"	-0.0004" to 0.0004"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K323	00000
						0.01"	-0.0005" to 0.0005"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K324	00000
						0.015"	-0.0009" to 0.0009"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K325	00000
						0.02"	-0.001" to 0.001"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K326	00000




								6" Wide × 60" Long

								0.01"	-0.0005" to 0.0005"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K317	00000




										6" Wide × 100" Long

										0.002"	-0.0001" to 0.0001"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K309	00000


										0.003"	-0.00015" to 0.00015"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K311	00000
										0.004"	-0.0002" to 0.0002"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K312	00000
										0.005"	-0.00025" to 0.00025"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K313	00000
										0.008"	-0.0004" to 0.0004"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K314	00000
										0.01"	-0.0005" to 0.0005"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K315	00000
										0.025"	-0.001" to 0.001"	1/2 Hard	ASTM A666	Roll	Material Certificate	Paper	2316K316	00000




												8" Wide × 12" Long

												0.002"	-0.0001" to 0.0001"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K327	0000


												0.003"	-0.00015" to 0.00015"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K328	0000
												0.004"	-0.0002" to 0.0002"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K329	0000
												0.005"	-0.00025" to 0.00025"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K331	00000
												0.006"	-0.0003" to 0.0003"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K332	00000
												0.007"	-0.00035" to 0.00035"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K333	00000
												0.008"	-0.0004" to 0.0004"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K334	00000
												0.01"	-0.0005" to 0.0005"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K335	00000
0.012"												-0.0006" to 0.0006"	1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K336	00000
0.015"	-0.0009" to 0.0009"											1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K337	00000
0.018"	-0.001" to 0.001"											1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K338	00000


0.02"	-0.001" to 0.001"	1/2 Hard										ASTM A666	Sheet	Material Certificate	Paper	2316K339	00000
0.025"	-0.001" to 0.001"	1/2 Hard	ASTM A666									Sheet	Material Certificate	Paper	2316K341	00000
0.031"	-0.001" to 0.001"	1/2 Hard	ASTM A666									Sheet	Material Certificate	Paper	2316K342	00000
0.035"	-0.0015" to 0.0015"	1/2 Hard	ASTM A666									Sheet	Material Certificate	Paper	2316K343	00000




		24" Wide × 24" Long

		0.01"	-0.0005" to 0.0005"									1/2 Hard	ASTM A666	Sheet	Material Certificate	Paper	2316K318	00000