... A500, JIS G 3466, DIN EN 10210, GB/T178-20052. MATERIAL:Q195, Q215, Q235, Q275, Q345, 20#, 45#, Stainless steel, Seamless ... with few cutting burr 7. MECHANICAL PROPERTY: Yield Strength Grade Wall thickness (mm)Yield strength (Mpa)Tensile strength (Mpa) Elongation%Impact work (J)2354-12 ...