Din2391en10305 St37.4 Nbk Black And Phosphate Seamless Steel Tube 

DIN2391EN10305 ST37.4 NBK Black and Phosphate Seamless Steel Tube

1) Certificate: ISO9001:2000, TS16949

2) Steel Gr.:  St37.4  

3) O.D: 4mm-70mm

4) W.T: 0.5mm-8mm

5) Max length:12m

6) delivery condition: cold, annealing, normalizing

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

8) Surface treatment: phosphated & oiled

9) Application: to be used in  hydraulic system, automobile industry etc.

Quality:

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 treament , which ensure tube surface is smooth, no any scales both on inner and outter surface. the products are made as per international standard, such as DIN, ASTM, BS, JIS, ISO and so on

Export:

Our products have been exporting to more than 20 countries and regions, include EU, America, Middle East and Asia, and it enjoyes good reputations, and welcomed by our clients warmly.

Hi,this is Chrisina,thanks very much for your interest in our products,If you want such steel tubes and pipes,or the standard is not listed above,pls do not hesitate to contact me at once.pls tell me,it's my honor to service you!

Skype: christina.haibinjx

Tel:+86-18056100777