... Mechanical properties test,SGS test DiaxLength:0.8-270x100-5000(mm) ASTM F136 etc. metal block round 1. Grades: Gr1, Gr2, Gr3 ... ±1.0+0.6, -0.5±0.3>15~25±1.2+0.7, -0.5±0.4>25~40±1.5+1.0, -0.5±0.5>40~60±2.0+1.2, -0.8±0.6 ... >60~90±2.5+1.5, -1.0±0.8 ... >90~120±3.0+2.0, -1.0±1.0 ...