... 4: ASME B36.10 Standard: JIS, GB, DIN, ASTM, APIStandard: JIS G3454-2007, JIS G3455- ... T ...Grade: 10#-45#, 16Mn, ST35-ST52, Q195-Q345Grade: 20#, 45#, 16Mn, St52, St42, Q345, Q195, ...Thickness: 6 ... S20C ,S45C, JIS G3454, JIS 3454 ,STPG42 DIN 17175 ST 45-8, ST 52 (5) Tolerate: ... 0.65≤0.035≤0.035≤0.25≤0.25/≤0.25DIN 17175ST42ST45 0.42~0.500.17~0.370.50~0.80≤0.035≤0.035≤0.25≤0.25/≤0.25DIN 1629Q345ST52 0.12~0 ...