Китай En10305 Холоднотянутая бесшовная стальная труба

Product Name

E215 steel pipe

E235 steel pipe

E355  steel pipe

chemical analysis

C: 0.10;Si: 0.05;Mn: 0.70;P: 0.025; S: 0.025;Al: 0.025

C: 0.17;Si: 0.35;Mn: 1.20;P: 0.025; S: 0.025

C: 0.22;Si: 0.55;Mn: 1.60;P: 0.025; S: 0.025

Tensile Strength

+C, 430MPa; +LC, 380MPa;+SR, 380MPa;+A, 280MPa;+N,290-430MPa

+C, 480MPa; +LC, 420MPa;+SR, 420MPa;+A, 315MPa;+N, 340-480MPa

+C, 640MPa; +LC, 580MPa;+SR, 580MPa;+A, 450MPa;+N,490-630MPa

Yield strength

+SR, 280MPa; +N, 215MPa

+SR, 350MPa;

+N, 235MPa

+SR, 450MPa; +N, 355MPa

Standard

EN10305-1

Length

As customer s request

Packaging

Standard export packing, packed in woven bags, with two nylon slings, or can be customized as request

Heat Treatment/      Delivery Condition

1. Cold finished (hard)   BK(+C)

Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation

1. Cold finished (soft)    BKW(+LC)

The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)

1. Cold finished and stress-relieved annealing BKS(+SR)

Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.

1. Annealed    GBK(+A)

The last Cold forming process is followed by annealing in a controlled atmosphere.

1. Normalized   NBK(+N)

The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

Delivery Time

Within 35-50 days from receiving deposit

Payment Term

100% L/C at sight or 30% deposit, 70% balance against copy of B/L

Usage/Application

Pipes for automobile and motorcycle

Main Market

Asia, Middle East, Europe, etc.