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.
| Wd. | Mechanical Finish | 6" Lg. | 18" Lg. | |
1/8" Thick. (0.01" to 0.015" Tolerance) | ||||
|---|---|---|---|---|
| 1/2" | Precision Ground | 9211K341 | ||
| 3/4" | Precision Ground | 9211K521 | ||
| 1" | Precision Ground | 9211K531 | ||
| 3" | Precision Ground | 9211K571 | ||
1/4" Thick. (0.01" to 0.015" Tolerance) | ||||
| 1/2" | Precision Ground | 9211K651 | ||
| 3/4" | Precision Ground | 9211K661 | ||
| 1" | Precision Ground | 9211K671 | ||
| 3" | Precision Ground | 9211K721 | ||
3/8" Thick. (0.01" to 0.015" Tolerance) | ||||
| 1/2" | Precision Ground | 9211K811 | ||
| 3/4" | Precision Ground | 9211K821 | ||
| 1" | Precision Ground | 9211K831 | ||
| 3" | Precision Ground | 9211K871 | ||
Wear-Resistant High-Speed M4 Tool Steel Rods

- Yield Strength: Not Rated
- 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.

























