Supply Black Phosphated Seamless Steel Tube 

1) Certificate: ISO9001:2000, ISO/TS16949-2009

2) Spec. & Steel Gr.: DIN2391-94/C, ST35, ST45, ST52. St37.4, E235, E255, E355

3) O.D: 4mm-80mm

4) W.T: 0.5mm-8mm

5) length:6m

6) delivery condition: cold, annealing, normalizing,

7) Package: bundled and wrapped in plastic or as per your requirement

8) Surface treatment: phosphated,

9) Application:for construction machinery vehicles etc.

the steel billets we are using are supplied by Xingcheng Special Steel and Baosteel Corp, the whole tube processing is conducted rigidly according to ISO9001:2008 quality system, and oxygen free annealing is adopted for heat treatment, which ensure tube surface is smooth, no any scales both on inner and outter surface. the products we supplying are as per international spec. such as DIN, EN, ASTM, JIS, BS, ISO and so on.

Quality is passed SGS inspection

our products have been exporting to more than 20 countries and regions, which include EU, America, Middle East and Asia, and they are welcomed by our clients warmly.