〔4〕高耐候性轧钢钢料 | |||||||||||||
(Superior Atmospheric Corrosion Resisting Rolled Steels) | |||||||||||||
标准代号 | 规格号码 | 记号 | 化学成分(%)Chemical composition | 拉伸试验 Tensile requirements | |||||||||
C | Si | Mn | P | S | Cu | Cr | 厚度(mm) | 降伏强度(Mpa) | 抗拉强度(Mpa) | 伸长度(%) | |||
CNS | 4620 | SPA-H | ≦0.12 | 0.25-0.75 | 0.20-0.50 | 0.07-0.15 | ≦0.04 | 0.25-0.60 | 0.30-1.25 | ≦6.0 | ≧345 | ≧480 | ≧22 |
JIS | G3125 | SPA-H | ≦0.12 | 0.25-0.75 | 0.20-0.50 | 0.07-0.15 | ≦0.04 | 0.25-0.60 | 0.30-1.25 | ≦6.0 | ≧345 | ≧480 | ≧22 |
ASTM | A242 | Type 1 | ≦0.15 | - | ≦1.00 | ≦0.15 | ≦0.05 | ≦0.20 | - | ≦20.0 | ≧345 | ≧480 | ≧21 |
CNS | 4620 | SPA-C | ≦0.12 | 0.25-0.75 | 0.20-0.50 | 0.07-0.15 | ≦0.04 | 0.25-0.60 | 0.30-1.25 | ≦6.0 | ≧315 | ≧450 | ≧26 |
JIS | G3125 | SPA-C | ≦0.12 | 0.25-0.75 | 0.20-0.50 | 0.07-0.15 | ≦0.04 | 0.25-0.60 | 0.30-1.25 | ≦6.0 | ≧315 | ≧450 | ≧26 |