1.6981 21CrMoNiV4-7 metal Forgings EN10269 Forged Rings
Surface Finish:3.2um Ra Or As Required.
Forging Reduction Min:3 Or As Required
Rought machining or Finis Machining
1.6981/21CrMoNiV4-7 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
Heat Treatment:
Hardening:900-950/air,oil or water dipping
Tempering:680-720(2h min)
Certfiticates List:
| Certificates list of Jiangyin Fangyuan |
| 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 |
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 |
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