Standard Comporision:
| Country | German | USA | Japan | China | Russia | British |
| Standard | DIN/Wr. | ASTM/AISI | JIS | GB | GOST | BS |
| Grade | 1.3247 | M42 | SKH59 | * | * |
Chemical Composition:
| Grade | C | Si | Mn | P | S | Cr | V | Mo | W | Co |
| M42 | 1.05-1.15 | 0.15-0.65 | 0.15-0.40 | ≤0.030 | ≤0.030 | 3.50-4.25 | 0.95-1.35 | 9.00-10.00 | 1.15-1.95 | 7.75-8.75 |
| 1.3247 | 1.05-1.15 | ≤0.70 | 0.15-0.40 | ≤0.030 | ≤0.030 | 3.50-4.25 | 0.90-1.30 | 9.00-10.00 | 1.20-1.90 | 7.50-8.50 |
| SKH59 | 1.05-1.15 | ≤0.70 | ≤0.40 | ≤0.030 | ≤0.030 | 3.50-4.50 | 0.90-1.30 | 9.00-10.00 | 1.20-1.90 | 7.75-8.75 |
Available Size:
| Shape: | Available Status | Available size(mm) |
| Plate | S | * |
| Flat bar | R | 2-200X200-610X2500-5800 |
| Sheet | R | 2-20X10-100X2500-5800 |
| Block | S | 250-500X610-1500X2500-5800 |
| Round bar | R | Dia2-200X2500-5800 |
| Hexagonal bar | S | * |
Delivery Condition:
Hot rolled/Forged+Black surface/Peeled/Rough turned
Delivery time:
Warehouse regular stock sizes:3-7 days
Mill manufacture sizes:15-60 days
Brief introduction:
M42 tool steel is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. (HSS Steel M42) 8% Cobalt tool bits are designed for machining work hardening alloys and other tough materials. They have increased water resistance and tool life. This improves performance and retention of the cutting edge. M42 steel composition makes for a good combination of toughness and hardness.
Application:
Typically employed to machine the super alloys and exotic, AISI HSS M42 tool steel is employed in drills, hobs, taps, end mills, milling cutters, form and gear cutters, broaches and chasers.
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