Detailed Introduction
Model :1.2842/90MnCrV8/ O2/9Mn2V
Application : tool steel
Content : Equivalent Steel with exact or nearest equivalents
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
V |
|
1.2842 |
0.85-0.95 |
0.10-0.40 |
1.80-2.20 |
≤0.030 |
≤0.030 |
0.20-0.50 |
0.05-0.20 |
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
V |
|
90MnCrV8 |
0.85-0.95 |
0.10-0.40 |
1.80-2.20 |
≤0.030 |
≤0.030 |
0.20-0.50 |
0.05-0.20 |
|
Grade |
C |
Mn |
P |
S |
Si |
Cr |
V |
|
O2 |
0.85-0.95 |
1.40-1.80 |
≤0.030 |
≤0.030 |
≤0.50 |
≤0.50 |
≤0.30 |
1.2842 Steel Description :
1.2842 steel is cold work die steel.The steel is easy to forge and requires a hardness of 63HRC.
1.2842 with great advantage in low toughness and harden-ability.
The chemical composition of the indium (mass fraction) :
C0.85, Si0.10% % ~ 0.95% ~ 0.40%,
Mn1.90% ~ 2.10%,
P, S acuities were 0.030% and 0.030%,
or less Cr0.20, v0.05% % - 0.50% ~ 0.15%.
Refer to the corresponding brand:
l China GB standard number 9Mn2V,
l International standard number 90MnV2,
l German DIN standard number 90MnV8,
l German DIN standard material number L. 2842,
l The United States ASTM standard number 02,
l British BS standard number B02,
l Sweden ONE Win 100 (ASSAB) standard number DF-20
Heating specification:
Start temperature 1050°C, end temperature 850°C, cooling with furnace.
Standard for common quenching and tempering:
Quenching temperature 780-810°C,
oil cooling, tempering temperature 160 ~180℃ or 190 ~230℃.
Typical application examples:
1) Used for stamping dies and cutting tools of paper cutter with thickness <6mm.
2) This steel is used for plastic mold, and heat treatment should be performed when used, with hardness of 58~60HRC
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