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DIN 1629 ST 37 Seamless Pipe 88.9mmx3.25mm 12m length

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This particular grade of ST 37 Steel Grade Seamless Pipe  is meant to be used for pressure as well as thermal purposes. This carbon steel  grade line ST37.0 DIN 1629 Hydraulic Pipe has good properties at a specified  room temperature. The Carbon Steel ST37.0 p235tr1 Round Pipe is used in  almost all sectors of various industries. Since variations are available in the  types and sizes of the DIN 2448 ST 37 Rectangular Pipe, these pipes could also  be used for general purposes.

The diameter of the DIN 1629 ST 37  Seamless Pipe ranges between 10,2 mm to about 219 mm with the wall thickness being  up to 12.7 mm in the case of cold drawn pipes. In order to check the tightness of the DIN 2391 ST 37  Steel Pipe, this steel grade needs to be subject to water testing at 7 Mpa.  Alternatively, the  DIN 2448 ST 37 could  also be subjected to  electromagnetic  testing as well if tightness is to be checked

DIN 1629 include 3 basic steel grades (ST37, ST44, ST52.), this standard specifies the Seamless Circular Tubes of Non Alloys Steels that are used in construction of chemical plant, pressure vessels, pipe system and general mechanical and engineering purposes. The main steel grades are Din 1629 specification applies to seamless steel tubes and pipes are suitable for gas fusion welding, arc welding, flash butt welding, electric pressure welding and gas pressure welding. Seamless steel pipe, welded steel pipe, Galvanized steel pipe are all available.

The limits of application and other specifications given in this standard shall apply except in cases here other specifications are contained in codes of practice for specific fields of application, e.g. the Technische Regeln fur Dampfkessel (TRD) (Technical rules on steam boilers) or the Technische Regeln fur Druckbehalter (TRB) (Technical rules on pressure vessels), AD-Merkblatter (AD Instruction sheets).

DIN 1629 Steel Pipe Chemical Composition:

Chemical Composition(%) 
Steel GradeCSiMnPS
St37≤0.17--≤0.035≤0.035
St44≤0.21--≤0.035≤0.035
St52.0≤0.22≤0.55≤1.60≤0.035≤0.035

DIN 1629 Steel Pipe Mechanical Property:

 Mechanical Properties
Steel GradeTensile strength(Mpa)Yield point(Mpa)Elongation(%)LElongation(%)T
St37350-480≥235≥25≥23
St44420-550≥275≥21≥19
St52.0500-650≥355≥21≥19

DIN 1629 Steel Pipe Equivalent Steel Grade:

DIN 1629ENBS NFA 49.210/49.112ASTM 53
Grade St 37EN 10216.1Grade P235 T1Grade TU 37 B TU E 220 AGrade B
Grade St 44EN 10216.1Grade P275T1Grade TU 42 B TU E 235 AGrade B
Grade St 52-0EN 10216-3Grade P355NNFA Grade P355NASME SA 381 Grade Y 52

CANGZHOU GALAXY  can supply DIN1629 steel pipe from stock or from reputed steel mills. We also offer steel fabrication service where steel pipe can go through processings like cutting (any size and any shape), drilling, welding, milling, machining as you require. If you are interested in buying DIN1629 steel pipe products, contact us now for the latest price or check the following table for equivalent steel grade of DIN1629.

Elevated Temperature Upper Yield Stress Values Of DIN 1629 Steel Pipe

Steel GradeYield stress value by working temperature(Thickness increasing)
50℃200℃250℃300℃
St 37235-215185-170165-150140-130
St 44275-255215-200195-180165-155
St 52355-335248-230225-210195-185

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