ST 37 fluid pipe is a seamless pipe used to transport general fluids such as water, oil, and gas. Mainly used in engineering and large equipment, with good dimensional and geometric accuracy and stable performance.
The ST37 alloy steel seamless pipe produced by GNEE has good mechanical properties, with a tensile strength of 420Mpa and a yield strength of not less than 315Mpa. Due to their seamless manufacturing nature, these pipes have no seams or welds during the manufacturing process, making them extremely strong.
In addition, GNEE also offers ST 37 honed pipes, which not only have extraordinary hardness but also have a very smooth surface by using wear-resistant rocks for polishing.
ST 37 pipe stock is available in a wide range of external sizes, from 4mm to 60mm, while wall thicknesses range from 0.5mm to 8mm.
Outer diameter and wall thick tolerance of DIN2391 ST37 steel tubes
|
OD Tolerance |
4-30mm |
31-40mm |
41-50mm |
51-60mm |
61-70mm |
71-80mm |
|
±0.08mm |
±0.15mm |
±0.20mm |
±0.25mm |
±0.30mm |
±0.30mm |
|
|
WT Tolerance |
±10% |
|||||
Mechanical property of DIN2391 ST37 precision steel tubes
|
Grade |
|
Cold drawn(Soft) |
Cold Drawn and Stress Release |
Anneal |
Normalizing |
|||||||
|
BK1 |
BKW1 |
(BKS) |
(GBK)1 |
(NBK)1 |
||||||||
|
Tensile |
Elongation |
Tensile |
Elongation |
Tensile |
Yield point |
Elongation |
Tensile |
Elongation |
Tensile |
Yield point |
Elongation |
|
|
N/mm2 |
% |
N/mm2 |
% |
N/mm2 |
N/mm2 |
% |
N/mm2 |
% |
N/mm2 |
N/mm2 |
% |
|
|
St37 |
480 |
6 |
420 |
10 |
420 |
315 |
14 |
315 |
25 |
350~480 |
235 |
25 |
St37 Seamless Precision Steel Tube
Our advantage
GNEE is a leading technology manufacturer in the seamless steel pipe industry. In addition to ST 37 steel pipes, other Standard ASTM A519, ASTM A106, ASTM A500, DIN2391, DIN1629, JIS3441, JIS3444 and JIS3445 and other seamless steel pipes, the production range is 10~120mm in outer diameter and 1~20mm in wall thickness.sales@gneetube.com
Gnee Factory environment
FAQ
Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
Q.What services do you provide?
A.Customized service for each customer, please feel free to contact us!
Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.
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