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Steel Grade (鋼級(jí)):

10#,20#,35#,45#,Q345B,ST35(E235),ST45(E255), ST52(E355),SAE1010,SAE1020,SAE1035,SAE1045, SAE4130, SAE4140,etc.

Standards(標(biāo)準(zhǔn)):

國(guó)標(biāo):GB/T3639

歐標(biāo):EN10305-1,EN10305-4

美標(biāo):ASTM A519,AMS-T-6736

日標(biāo):JIS G3445,etc.

Size Range(尺寸范圍):

OD(外徑范圍):12-80mm WT(壁厚范圍):0.7-12mm