DIN 2391 seamless precision steel tubes
Detailed product description:
1)Standard: DIN2391, EN10305-1, EN10305-4,ASTM A519
2) Steel grade: St35, St37, ST37.4, St45, St52, SAE 1010.1020,E235, E355
3) Delivery status: GBK, NBK, BK, BKS
4) Size:OD4-50mm. WT0.8-6mm Max length 13m.
5) All steel tube can test , Eddy current flaw detector, depend on customers requirement
6) Usage: cylinders of machinery, high pressure tubing
7) Characteristic: high cleanness, smooth on the both surface, chemical composition and mechanical properties fully according with standards.
8) Surface Finish: black phosphated, oiled, or bright.