〔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