Chinese-made American standard steel plate grades ASTM SA662 classB Chemical composition of pressure vessel plates&Mechanical properties
ASTM SA662 classB Approaching Grade Lookup Table

ASTM-SA662  Chemical composition

Grade chemical composition Remark
C Mn Si S P …
SA662
ClassB		 Smelting Analysis Finished Product Analysis Smelting Analysis Finished Product Analysis Smelting Analysis Finished Product Analysis Smelting Analysis Finished Product Analysis Smelting Analysis Finished Product Analysis
≤0.14 ≤0.17 0.90-1.35 0.84-1.46 0.15-0.40 0.13-0.45 ≤0.35 ≤0.035 ≤0.35 ≤0.035

ASTM-SA662  Mechanical properties

Grade Mechanical properties Remark
ReH Rm KV₂ Elongation%
SA662
ClassB		 ≥275 400-500 8-inch (200 mm) gauge length elongation 2-inch (50 mm) gauge length elongation
≥20 ≥23