M42
Qilu
Product Description
SKH59 1.3247 M42 High Speed Steel Round Bar
1: AISI M42 Steel Introduction
M42 Tool Steel is is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. (HSSSteel 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.
M42 steel Stock in warehouse
2: A681 Quality Standard
ASTM-A681-2008 ENG Standard-Specification-for-Tool-Steel-Alloy.pdf
3: AISI M42 Steel Equivalent
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4403 |
| Grade | M42 | 1.3247/HS2-9-1-8 | SKH59 |
4: AISI M42 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo | V | W | Co |
| M42 | 1.05-1.15 | 0.2-0.65 | 0.15-0.4 | 0.03 | 0.03 | 3.5-4.25 | 9.0-10.0 | 0.95-1.35 | 1.15-1.85 | 7.75-8.75 |
| 1.3247 | 1.05-1.15 | 0.7 | 0.15-0.4 | 0.03 | 0.03 | 3.5-4.5 | 9.0-10.0 | 0.9-1.3 | 1.2-1.9 | 7.5-8.5 |
| SKH59 | 1.05-1.15 | 0.7 | 0.4 | 0.03 | 0.03 | 3.5-4.5 | 9.0-10.0 | 0.9-1.3 | 1.2-1.9 | 7.5-8.5 |
