S235JR spiral steel pipe is a non-alloy structural steel with good mechanical properties. Its yield strength is 235MPa, tensile strength is 360-510MPa, and elongation is 26%. These characteristics make S235JR have good plasticity and welding performance. In addition, S235JR submerged arc spiral steel pipe also has excellent cold working performance and hot working performance, and is suitable for various processing techniques.
The processing technology of S235JR spiral welded pipe is relatively simple, and commonly used processing methods include cutting, cold bending, welding, etc. In terms of cutting, cutting machines, drilling machines, milling machines and other equipment can be used for processing. In terms of cold bending, equipment such as plate rolling machines and bending machines can be used for processing. In terms of welding, arc welding, gas shielded welding and other methods can be used for processing.
Mechanical Property
| steel grade | minimum yield strength Mpa |
Tensile strength | Minimum elongation % |
Minimum impact energy J |
||||
| Specified thickness mm |
Specified thickness mm |
Specified thickness mm |
at test temperature of | |||||
| ＜16 | ＞16≤40 | ＜3 | ≥3≤40 | ≤40 | -20℃ | 0℃ | 20℃ | |
| S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
Chemical Composition
| Steel grade | Type of de-oxidation a | % by mass, maximum | ||||||
| Steel name | Steel number | C | C | Si | Mn | P | S | Nb |
| S235JRH | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
Spiral Welded Steel Pipe
With an annual output of 10 million tons, gnee is the largest domestic manufacturer of ERW square pipes, rectangular pipes, hollow pipes, galvanized pipes and spiral welded pipes. Annual sales reach US$5 billion. It has 59 black straight seam welded pipe production lines, 10 galvanized pipe production lines, 3 spiral welded pipe production lines, and 1 JCOE LSAW steel pipe production line.
FAQ
1.Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q: How do your guarantee the quality?
A: Before mass production, there must be pre-production samples; before shipment, there must be final inspection.
