ASTM A830 Steel | McMaster-Carr

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40,000 psi to 99,999 psi

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15 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.

High-Strength 1045 Carbon Steel Sheets and Bars

Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.

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

Sheets

Yield Strength: 45,000 psi
Hardness: Rockwell B85 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A830

			12" × 12"		18" × 18"		24" × 24"
Thick.	Thick. Tolerance	Flatness Tolerance		Each		Each		Each
3/8"	-0.01" to 0.03"	Not Rated	00000000	0000000	00000000	0000000	00000000	0000000
1/2"	-0.01" to 0.03"	Not Rated	00000000	000000	00000000	000000	00000000	000000
3/4"	-0.01" to 0.04"	Not Rated	00000000	000000	00000000	000000	00000000	000000
1"	-0.01" to 0.07"	Not Rated	00000000	000000	00000000	000000	00000000	000000

Easy-to-Form Wear-Resistant 1095 Spring Steel Sheets

Yield Strength: Not Rated
Hardness: Rockwell B90 (Medium)
Fabrication: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Specifications Met: See table

These sheets are annealed to soften their temper, so they can be formed into shape and then heat treated for spring properties. They’re made from 1095 spring steel, which is more wear resistant than 1075 spring steel because of its higher carbon content. These sheets are often made into parts that will be used under continual stress, such as spring clips and washers. They have been manufactured to ASTM standards for quality and performance.

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

8" × 12"
Thick.	Thick. Tolerance	Fabrication	Heat Treatment	Specifications Met	Flatness Tolerance		Each
1/4"	-0.008" to 0.008"	Hot Rolled	Annealed (Softened)	ASTM A830	Not Rated	00000000	000000
15" × 48"
1/4"	-0.008" to 0.008"	Hot Rolled	Annealed (Softened)	ASTM A830	Not Rated	00000000	000000
24" × 48"
1/4"	-0.008" to 0.008"	Hot Rolled	Annealed (Softened)	ASTM A830	Not Rated	00000000	000000