Cold Drawn Precision Seamless Steel Pipes With Anti - Rust Oil protection

DIN2391 ST35 BK, BKW, BKS, GBK , NBK Cold Drawn Precision Seamless Steel Pipes

DIN2391 Precision Steel Pipes for Hydraulic system 
OD:4-80 (mm) WT0.5-10 (mm) Length 12000mm

1). BK Cold finished (hard)
2). BKW Cold finished (soft)

3). BKS Cold finished and stress relieved

4). GBK Annealed
5). NBK Normalized

 

Standard and documents reffered to:

DIN 1629               Seamless, circular, unalloyed steel pipes subject to special requirements; technical

                              delivery conditions

DIN1630                High Performance seamless, circular, unalloyed steel tubes; technical delivery conditions

DIN1651                Free cutting steel, technical delivery conditions

DIN2391 Part 1     Seamless precision steel tubes; dimensions

DIN2445 Part 2     Seamless precision steel tubes subject to fatigue loading, rated for a pressure of 64 to 

                              400 bar

DIN4768                Determination of surface roughness parameters R3, R2 and Rmax, using electric styles

                              instruments; concepts and measuring conditions

DIN8528 Part 1     Weldability of metallic materials; concepts

DIN17121              Seamless circular steel tubes for structural steel work; technical delivery conditions

DIN17124              Seamless circular fine grain steel tubes for structural steelwork; technical delivery

                              Conditions

DIN17172              Steel pipes for conveying combustible liquids and gases; technical delivery conditions

DIN17173              Seamless circular tubes made from steel with low temperature toughness; technical

                              delivery conditions.

DIN17175              Seamless tubes with elevated temperature properties; technical delivery conditions

DIN17179              Seamless circular fine grain steel tubes subject to special requirements; technical

                              delivery conditions

DIN17204              Seamless circular tubes made from steels for quenching and tempering; technical

                              delivery condition

DIN17210              Case hardening stel; technical delivery conditions

DIN17458              Seamless circular austenitic stainless steel tubes subject to special requirements,

                              technical delivery conditions.
DIN50049              Inspection documents for the delivery of metallic products

DIN50960 Part 1   Electroplated and chemically applied coatings; designation and information in technical

                              documentations

DIN EN10002 Part1 Tensile testing of metallic materials; method of test at ambient temperture ( including

                                 Amendment AC 1:1990)

DIN EN10025           Hot rolled unalloyed structurall steel products; technical delivery conditions ( including

                                 Amentment A1:1993)

DIN EN10027 Part1 Designation systems for steel; steel names and principal symbols

DIN EN10027 Part2 Designation ystmes for steel; numerical systems

DIN EN10083 Part1 Quenched and tempered steels; technical delivery conditions for special steels

DIN EN10083 Part2 Quenched and tempered steels; technical delivery conditions for unalloyed quality steels

DIN EN10233           Metallic materials; tube; flattening test

DIN EN10234           Metallic materials; tube; drift expanding test

DIN EN10021           General technical delivery conditions for steel and iron products