1.forged or hot rolled
2.SEP1921 D/d
3. 30-60 days
4.(14~500)*(50~15000)*(2000~6000) or dia (15~900)
5. black,milled,turned
1.Chemical Composition
Standard | Steel Grade | C | Si | Mn | P | S | Cr | Mo | V | W | other |
DIN | 1.2343 | 0.36-0.42 | 0.90-1.20 | 0.30-0.50 | 0.030 | 0.030 | 4.80-5.80 | 1.10-1.40 | 0.25-0.50 |
|
|
ASTM | H11 | 0.33-0.45 | 0.80-1.20 | 0.20-0.50 | 0.030 | 0.030 | 4.75-5.50 | 1.10-1.60 | 030-0.60 |
|
|
GB | 4Cr5MoSiV | 0.33-0.43 | 0.80-1.20 | 0.20-.50 | 0.030 | 0.030 | 4.75-5.50 | 1.10-1.60 | 0.30-0.60 |
|
|
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≤235 |
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 |
