Rockwell B96 Steel | McMaster-Carr

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Rockwell C48 to Rockwell C51

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25 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.

Wear-Resistant 4820 Alloy Steel

Yield Strength: 73,000 psi
Hardness: Rockwell B96 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Fabrication: Hot Rolled
Specifications Met: ASTM A29, ASTM A322

Often used for gears, bushings, and pins, this 4820 alloy steel resists wear from friction and abrasion. It’s a case-hardening steel, which means that heat treating will create a hard surface without making the interior brittle. This steel is manufactured to ASTM standards for performance and quality.

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

Dia.	Dia. Tolerance	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2"	-0.015" to 0.015"	1/4" per 5 ft.	00000000	000000	0000000	0000000
3"	0" to 0.046"	1/4" per 5 ft.	00000000	000000	000000	000000
4"	0" to 0.062"	1/4" per 5 ft.	00000000	000000	000000	00
5"	0" to 0.078"	1/4" per 5 ft.	00000000	000000	000000	00

Tight-Tolerance Multipurpose Air-Hardening A2 Tool Steel Rods

Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. Also known as drill rod, this A2 tool steel is more wear resistant than O1 and keeps a sharper cutting edge. It’s air-hardening, so it doesn’t require baths or quenching after heat treatment. This tool steel is often used for punches, blades, and hammers. These rods have been manufactured to ASTM A681 standards for performance and quality.

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

Rods

Yield Strength: See Table
Hardness: See Table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C62
Fabrication: Hot Rolled
Specifications Met: ASTM A681

Dia.	Dia. Tolerance	Yield Strength	Heat Treatment	Hardness	Mechanical Finish	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.	12 ft. Lg.
15/16"	-0.0005" to 0.0005"	Not Rated	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00	000000	00	0000000	00	0000000	00	00
1"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	000000	00000	0000000	000000	0000000	000000	0000000	0000000
1 1/16"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00	00000	00	000000	00	000000	00	00
1 1/8"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	00000	00000	000000	00	000000	00	00
1 3/16"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	00	00000	00	000000	00	000000	00	00
1 1/4"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	00000	00000	000000	000000	000000	000000	00
1 3/8"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	00000	000000	000000	00	000000	00	00
1 7/16"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	00	00000	00	000000	00	000000	00	00
1 1/2"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	00000	000000	000000	00	000000	00	00
1 5/8"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	00000	000000	00	000000	00	00	00	00
1 3/4"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	000000	00	000000	00	000000	00	00
2"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00000	000000	000000	000000	00	000000	00	00
2 1/4"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	000000	000000	00	000000	00	000000	00	00
2 1/2"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	000000	000000	00	000000	00	000000	00	00
2 3/4"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00	000000	00	000000	00	000000	00	00
3"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	0000000	00	000000	00	000000	00	00000000	00	00
3 1/2"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	000000	000000	00	000000	00	00	00	00
4"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	000000	000000	00	00000000	00	00	00	00
5"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	000000	000000	00	00	00	00	00	00
6"	-0.001" to 0.001"	55,000 psi	Annealed (Softened)	Rockwell B96	Precision Ground	0.005" per ft.	00000000	000000	000000	00	00	00	00	00	00

Metric Rods

Yield Strength: 55,000 psi
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C62
Fabrication: Hot Rolled
Specifications Met: ASTM A681

Dia., mm	Dia. Tolerance, mm	Heat Treatment	Hardness	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
25	-0.025 to 0.025	Annealed (Softened)	Rockwell B96	Precision Ground	0.0125" per ft.	0000000	0000000	0000000	0000000