Grinding Hot Forged NF 90MCW5 9CrWMn High Speed Tool Steels ASTM DIN JIS , HB210 Max Hardness
Descrition:
Properties: High hardness and good wear resistance. Good toughness, lower heat sensitivity. Impact toughness is the lowest from 300°C, so must be avoiding tempering at 300°C.
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: HB210 Max,Hardness after Q+T(quenching+tempering): ≥ 61HRC
Applications:
Cold-punched die with small section and complex shape, measuring tool and gauge.
Specifications:
ASTM O1 tool steel Composition:
|
C |
Si |
Mn |
Cr |
V |
W |
P |
S |
|
0.90-1.05 |
0.15-0.35 |
1.00-1.20 |
0.50-0.70 |
0.05-0.15 |
0.50-0.70 |
<0.03 |
<0.03 |
Equivalent Grades:
|
GB |
DIN |
ASTM |
JIS |
BS |
NF |
|
9CrWMn |
1.2510 |
O1 |
SKS3 |
BO1 |
90MCW5 |
Hardness&tempering relationship:(830°C oil quenching)
|
Temper/°C |
100 |
200 |
300 |
400 |
500 |
550 |
600 |
650 |
|
Hardness HRC |
62 |
60 |
56 |
