2) 1.6981 Chemical Composition:
| C | Si | Mn | P | S | Cr | Mo | Ni | V | Al |
| 0.17~0.25 | 0.15~0.35 | 0.25~0.85 | ≤0.020 | ≤0.020 | 0.9~1.2 | 0.65~0.80 | 0.50~0.80 | 0.25~0.35 | ≤0.015 |
1)The Al content of the cast shall be reported and indicated in the certificate
3) Heat Treatment:
| Hardening: | 900-950¡æ/air,oil or water dipping |
| Tempering: | :680-720¡æ(2h min) |
4) Certfiticates List:
| Certificates list of 1.6981 | ||
| ISO9001:2008 | ISO14001:2004 | PED Certificate |
| ABS Certficate | BV Certficate | DNV Certificate |
| RINA Certficate | GL Certficate | LR Certficate |
| CCS Certficate | NK Certficate | KR Certficate |
| API-6A Certficate | API-17D Certficate | CNAS Certficate |
5) The main manufacturing equipments:
|
Name&Description |
Capacity |
Quantity |
|
3600Thydraulic press |
Max. single forging in 18T |
1 |
|
2000T hydraulic press |
Max. single forging in 9T |
2 |
|
800 hydraulic press |
Max. single forging in 5T |
1 |
|
6T electrical hydraulic hammer |
Max.single forging in 5T |
1 |
|
3T electrical hydraulic hammer |
Max.single forging in3T |
1 |
|
Air hammer |
Max.single forging from250kg to 1000kg |
7 |
|
Forging operation machine |
Max.singe forging from20T-5T |
7 |
|
Heat treatment Furance |
Max.8000*5000*1500mm |
11 |
|
CNC driling machine |
Max.5000mm |
2 |
|
Vertical lathe |
From 1600 to 5000mm |
60 |
|
Horizontal lathe |
Max.5000mm |
70 |
|
Band sawing machine |
260-1300mm |
36 |