ASTM Hot Rolled Cold Work High Speed Tool Steels SAE O2 DIN 1.2842 BS B02 NF 90MV8 GB 9Mn2V
Descrition:
Properties: Excellent hardenability, wear resistance, quenching deformation is small, lower the heat sensitivity
1.Size Available:
a) Round bar: Dia 16mm-600mm , Length can be customized.
b) Flat bar: Thickness: 16-500mm Width: 200-800mm ,Length can be customized.
2. Shaping: Hot forged / Hot rolled
3. Surface condition: Black surface/turning/milling/grinding/polishing
4. Annealing Hardness: HB229 Max
5. Hardness&tempering relationship: (790°C oil quenching, tempering 2 hours)
|
Temper/°C |
0 |
100 |
200 |
250 |
300 |
350 |
400 |
500 |
600 |
|
Hardness HRC |
62 |
61.5 |
60 |
58 |
55 |
52 |
48 |
40 |
32 |
Applications:
Widely used in making high precision measuring tools, template, general demand and small size stamping die, cold extruding die, carving die and blanking die ect.
Specifications:
SAE O2 cold work hot rolled steel Composition:
|
C |
Si |
Mn |
Cr |
V |
P |
S |
|
0.85-0.95 |
0.10-0.40 |
1.90-2.10 |
0.20-0.50 |
0.05-0.15 |
<0.03 |
<0.03 |
Equivalent Grades:
|
GB |
DIN |
ASTM |
BS |
NF |
|
9Mn2V |
1.2842 |
O2 |
BO2 |
90MV8 |
