Description
| C (％) | ≤ 0.03 |
| Si(％) | ≤ 1.00 |
| Mn(％) | ≤ 1.00 |
| P(％) | ≤ 0.040 |
| S (％) | ≤ 0.030 |
| Cr (％) | 28.0 ～ 30.0 |
| Ni (％) | ≤ 1.00 |
| Mo(％) | 3.60 ～ 4.20 |
| Other (％) | (Ti+Nb)0.20 ～ 1.00 ≥ 6×(C+N) N ≤ 0.045 |
| Condition of heat treatment | - |
| Tensile Rm (MPa) | 550 |
| Yield Rp0.2 (MPa) | 415 |
| Elongation A (%) | 18 |
| Reduction in cross section on fracture Z (%) | - |
| Impact AKV/AKU (J) | - |
| Brinell Hardness (HBW) | 255 |
| The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3. Bars are usually supplied black/bright in the annealed condition. |
| Forms and Shapes: Round bar (Diameter): 5.50 ~ 650mm Square bar / Flat bar: 3 ~ 650mm Wire rod (Diameter): 0.10 ~ 16mm Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form) Forging piece: Different shapes based on OEM |
