DIN2391 Steel Pipe/auto tube

Product Detail

Product Name	St35 steel pipe	St45 steel pipe	St55  steel pipe	St52 steel pipe
chemical analysis	C: 0.18; P: 0.05; S: 0.05	C: 0.25; P: 0.05; S: 0.05	C 0.36; P: 0.05; S: 0.05	C: 0.20; Si 0.55;Mn 1.5;P: 0.05; S: 0.05
Tensile Strength	+NBK,35-45MPa; +BK, 45MPa;+BKW, 38MPa;+GBK, 32MPa	+NBK,45-55MPa; +BK, 55MPa;+BKW, 48MPa;+GBK, 40MPa	+NBK,55-65MPa; +BK, 65MPa; +GBK, 50MPa	+BK, 60MPa;+BKW, 55MPa;
Yield strength	+NBK, 24M Pa	+NBK, 26MPa	+NBK, 30MPa	-
Standard	DIN2391-1
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	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 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) 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. Annealed    GBK(+A) The last Cold forming process is followed by annealing in a controlled atmosphere. 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.

Changzhou Hongtai Precision Steel Pipes Co. specializes in steel pipes manufacturing and trading for many years, enjoys a great reputation in China. Our products are famous for their high quality and wide size range.