1.ASTM M2 2.SEP1921 D/d 3. 30-60 days 4.(14~500)*(50~15000)*(2000~6000) or dia (15~900) 5. black,milled,turned
ASTM M2
1.Chemical Composition
Standard | Steel Grade | C | Si | Mn | P | S | Cr | Mo | V | W | other |
DIN | 1.3343 | 0.86-0.94 | ≤0.45 | ≤0.40 | 0.030 | 0.030 | 3.80-4.50 | 4.70-5.20 | 1.70-2.00 | 6.00-6.70 |
|
ASTM | M2 | 0.95-1.05 | 0.20-0.45 | 0.15-0.40 | 0.030 | 0.030 | 3.75-4.50 | 4.50-5.50 | 1.75-2.20 | 5.50-6.75 |
|
GB | W6Mo5Cr4V2 | 0.80-0.90 | 0.20-0.45 | 0.15-0.40 | 0.030 | 0.030 | 3.80-4.40 | 4.50-5.50 | 1.75-2.20 | 5.50-6.75 |
|
2.Size:
round | diameter(mm) | length(mm) |
|
14~900 | 2000~6000 |
| |
plate/sheet | thichkness(mm) | width(mm) | length(mm) |
15~500 | 50~1500 | 2000~6000 |
3.Hardness of annealed:
HBS≤240-300 |
4. The Process
EAF+LF+VD+ESR+Forged or hot rolled+Heat Treatment(optional) |
5. condition of surface
black | rough machined(peeled) | turned |
6. Inspecting
ultrosonic test, according to SEP1921 D/d or as your requirements |
7. Quality Control
Supply M.T.C or third party inspection institution |
M2
