Chemical Composition of M42 Tool Steel Material
| ASTM A681 |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
w |
Co |
| M42/ T11342 |
1.05～1.15 |
0.15～0.65 |
0.15～0.40 |
0.030 Max |
0.030 Max |
3.50～4.25 |
9.00～10.00 |
0.95～1.35 |
1.15～1.85 |
7.75～8.75 |
| DIN 17350 |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
w |
Co |
| 1.3247/S2-10-1-8 |
1.05～1.15 |
≤0.70 |
≤0.40 |
0.030 Max |
0.030 Max |
3.50～4.50 |
9.00～10.00 |
0.90～1.30 |
1.20～1.90 |
7.50～8.50 |
| GB/T 1299 |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
w |
Co |
| W2Mo9Cr4VCo8 |
1.05～1.15 |
0.15～0.65 |
0.15～0.40 |
0.030 Max |
0.030 Max |
3.50～4.25 |
9.00～10.00 |
0.95～1.35 |
1.15～1.85 |
7.75～8.75 |
| JIS G4403 |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
w |
Co |
| SKH59 |
1.05～1.15 |
≤0.70 |
≤0.40 |
0.030 Max |
0.030 Max |
3.50～4.50 |
9.00～10.00 |
0.90～1.30 |
1.20～1.90 |
7.50～8.50 |
M42 Tool Steel Material Equivalent and Related Speciations
| USA |
German |
Japan |
China |
ISO |
| ASTM A681 |
DIN 17350 |
JIS G4403 |
GB/T 1299 |
ISO 4957 |
| M42 |
1.3247 |
SKh59 |
W2Mo9Cr4VCo8 |
HS 2-9-1-8 |
SAE M42 Tool Steel Material Mechanical Properties
Hardness, Rockwell C (oil quenched on 1204°C, 5 minutes): 63 HRC.
Hardness, Rockwell C (oil quenched on 1177°C, 5 minutes): 65.5 HRC
Hardness, Rockwell C(oil quenched on 1163°C), 5 minutes: 65.8 HRC
Forged of M42 Steel metal material
At first, Pre-Heating to 650-750℃,Then heat to forged temperature. Next, Soak at 1050-1100 °C , ensure heat thorough. Then start forged, the forged temperature no low than 950℃. After forging, cool slowly .
Heat Treatment of SAE M42 Steel
M42 HSS Steel Annealing
Firstly, Slowly heat to 870℃,then slowly Cool to 538℃(1000℉) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 269 Max
M42 tool Steel Hardening
M42 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. Finally, the temperature employed is usually 1800°-1850°F, depending on size section.
Quenching of HSS M42 Steel material
Quenching temperature / ℃ | salt bath furnace: 1177
Quenching temperature / ℃ | controlled atmosphere furnace: 11188
The heat preservation time/min: 5 ~ 15
Quenching medium: air cooling
Tempering Of HSS M42 Tool Steel
Tempering temperature / ℃ : 538
After tempering hardness HRC or higher: 66
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M42 HIGH SPEED TOOL STEEL PLATE AND ROUND BAR FOR BLADE AND TOOLS PRODUCTION Images
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