NINGBO S&D METALWORK CO.,LTD
| Description | Grade | Temperature Range | Tensile Min psi | Yield | Reduction of Area | Elongation | Alloy Type | AISI |
| ASTM A193 | B7 | High Temp.from 0-480ºC | 125,000 | 105,000 | 50 | 16 | CrMo | 4140 |
| ASTM A193 | B7M | High Temp. from 0-450ºC | 100,000 | 80,000 | 50 | 18 | CrMo | 4140 |
| ASTM A193 | B8 | Low Temp. -200-650ºC | 75,000 | 30,000 | 50 | 30 | 18%Cr-8%Ni | 304 |
| ASTM A193 | B8M | Low Temp. -200-750ºC | 75,000 | 30,000 | 50 | 30 | 16%Cr-10%Ni | 316 |
