Powdered Steel | McMaster-Carr

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M4 High-Speed Tool Steel

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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 High-Speed M4 Tool Steel Bars

Yield Strength: 60,000 psi
Hardness: Rockwell B95 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C65

These bars are also known as flat stock. Made from powdered metal, M4 tool steel has a consistent microstructure that gives it outstanding resistance to wear and abrasion. It is comparable to CPM Rex M4. Use it for punches, dies, and high-speed cutting tools. These bars are decarb-free for a uniform surface that will consistently accept heat treating.

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

1/8" Thick. (0.01" to 0.015" Tolerance)
Wd.	Mechanical Finish		6" Lg.	18" Lg.
1/2"	Precision Ground	00000000	000000	0000000
3/4"	Precision Ground	00000000	00000	000000
1"	Precision Ground	00000000	00000	000000
3"	Precision Ground	00000000	000000	000000
1/4" Thick. (0.01" to 0.015" Tolerance)
1/2"	Precision Ground	00000000	00000	000000
3/4"	Precision Ground	00000000	000000	000000
1"	Precision Ground	00000000	000000	000000
3"	Precision Ground	00000000	000000	000000
3/8" Thick. (0.01" to 0.015" Tolerance)
1/2"	Precision Ground	00000000	00000	000000
3/4"	Precision Ground	00000000	000000	000000
1"	Precision Ground	00000000	000000	000000
3"	Precision Ground	00000000	000000	000000

Wear-Resistant High-Speed M4 Tool Steel Rods

Yield Strength: See Table
Hardness: Rockwell C30 (Hard)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C65

Made from powdered metal, M4 tool steel has a consistent microstructure that gives it outstanding resistance to wear and abrasion. It is comparable to CPM Rex M4. Use it for punches, dies, and high-speed cutting tools. These rods are decarb-free for a uniform surface that will consistently accept heat treating.

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

Dia.	Dia. Tolerance	Yield Strength	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
5/8"	0" to 0.004"	Not Rated	Ground	Not Rated	0000000	000000	0000000	0000000
3/4"	0.015" to 0.017"	60,000 psi	Ground	0.048"	0000000	000000	000000	00
7/8"	0.015" to 0.017"	60,000 psi	Ground	0.048"	00000000	000000	00	00
1"	0.015" to 0.017"	60,000 psi	Ground	0.048"	00000000	000000	00	00
1 1/4"	0" to 0.004"	Not Rated	Ground	Not Rated	0000000	000000	000000	000000
1 1/2"	0" to 0.004"	Not Rated	Ground	Not Rated	0000000	000000	000000	00000000

Ultra-Wear-Resistant A11 Tool Steel

Yield Strength: 239,000 psi
Hardness: Rockwell C26 (Hard)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C58

Resistant to wear, abrasion, and chipping, A11 is a hard material that is often made into punches and stamping tools. These rods are decarb-free for a uniform surface that will consistently accept heat treating.

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

Dia.	Dia. Tolerance	Heat Treatment		1 ft. Lg.	3 ft. Lg.
1/2"	0" to 0.03"	Annealed (Softened)	00000000	000000	0000000
5/8"	0.015" to 0.093"	Annealed (Softened)	00000000	00000	00
3/4"	0" to 0.03"	Annealed (Softened)	00000000	00000	00
1"	0" to 0.03"	Annealed (Softened)	00000000	000000	00
1 1/4"	0" to 0.03"	Annealed (Softened)	00000000	000000	00
1 1/2"	0.015" to 0.093"	Annealed (Softened)	00000000	000000	00
2"	0" to 0.03"	Annealed (Softened)	00000000	000000	00