联系人 zhang
Xisanshan district, Huangshi, Hubei
Specification :
| Size | round | Dia 15mm~500mm |
| flat | Thickness 10mm-400mm | |
| Width 60mm-810mm | ||
| Technique | Cold Drawn/Cold Pilfered/Cold Rolled/Hot Rolled/forge- | |
| Process | EAF+LF+VD+ESR+Forged/Hot rolled + Heat Treatment (Annealed, Normalized, Q+T) | |
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface Condition | Black surface ; Grinded ; Machined/Turned | |
| Inspection | 100% Ultrasonic according to the test standards:SEP1921-84,CLASS C/c or D/d | |
| Payment Terms | T/T; L/C | |
| Trade Terms | FOB,CIF,CFR | |
| Packing | Standard seaworthy packing or as customer required | |
Equivalent Grades :
| GB | DIN | ASTM | JIS |
| Cr12 | 1.2080 | D3 | SKD1 |
Chemical Composition
| Standard | Steel Grade | C | Si | Mn | P | S | Cr | V | W | other |
| ASTM | D3 | 2.00-2.35 | 0.10-0.45 | 0.15-0.45 | 11.0-13.0 |
Heat treatment
| Hardness | 59-63HRC | |
| Anneal | 830-870°C | ≤255HB |
| Quenching | 950-980°C | Air or oil cooling |
| Tempering | 180-200°C | 60-62HRC, tempering once |
| It is annealed before ex-factory, which ensure good metallographic structure, proper hardness and good workability. There is no need to anneal again. | ||
| But It must be re-annealed if reforged, as the original organization and performance are destroyed after reforged, and the forging stress increased. | ||
| Normally it will be annealed twice and the temperature of the second annealed is 20°C lower than the first one. | ||
The feature:
| 国家: | China |
| 型号: | - |
| 离岸价格: | ( Negotiable ) 获取最新报价 |
| 位置: | - |
| 最小订单价格: | - |
| 最小订单: | 1 Metric Ton |
| 包装细节: | Standard seaworthy packing or as customer required |
| 交货时间: | within 7 days for stock material; new production w |
| 供应能力: | - |
| 付款方式: | L/C, T/T |
| 產品組 : | steel |
