Q195 seamless square steel tube

1. Standard: JIS G3466,DIN EN10210,DIN EN10219,ASTM A500,GB/T3094-2000,GB/T6728-2002

2. Material: Q195,Q235,Q345,20#,16Mn,ST37/52, ASTM  A53/106,STKR490/STKR400,ASTM A500 GR,S355,S275,S235
3. Size: OD: 30mm-400mm, can be manufactured by customer's requirement;

     WT: 2mm-25mm;

     Length: 6M~12M, length can be manufactured by customer requirement.

4. Tolerance: by the standard
5. Bundling: according to the customer's requirements

6. Applications: construction structure,machinery making,cintainer,hall structure,offshore oil field,sea trestle,motorcar cassis,airport structure,shipbuilding, automobile axle pipe and so on.