A312 TP304N Stainless Steel Pipe
GNEE is a manufacturer, supplier and exporter of A312 TP304N Stainless Steel Structural Pipe, these pipes are made of high quality raw materials. GNEE products are designed in accordance with major international standards and sold in many countries around the world.
A312 TP304N seamless stainless steel pipe, for Chinese standard 0Cr19Ni9N, is a stainless steel based on 304 with nitrogen added, nitrogen is to increase the strength of the steel. A312 TP304N high temperature stainless steel pipe contains higher nickel, its work hardening rate is low, and is used for welding equipment and structural parts with certain corrosion resistance requirements, and requires higher strength and reduced weight.
In addition, A312 TP304 stainless steel welded pipes usually have good weld performance, which means that during the welding process, its welding strength and stability are high, and it is not easy to produce welding defects such as cracks or pores.
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A312 TP304N Welded pipe Heat Treatment Requirements
| Grade | UNS Designation |
Finished | Heating Temperature | Cooling/testing Requirements |
| A312 TP304N | S304, S30409 | Hot | 1900 °F [1040 °C] | See Spec |
A312 TP 304N Welded pipe Elongation Requirements
| Elongation in 2 in., min, % | longitudinal | Transverse | Grain size | |
| Longitudinal | Transverse | |||
| 35 | 25 | 35 | 25 | According to standard |
A312 TP304N Cold Finished Seamless Pipe

Why choose us
GNEE pipes and tubes have a wide range of applications in many market sectors, including the oil and gas, petrochemical and construction industries. And we can offer different properties for different purposes (e.g. corrosion protection).
GneeGroup participated in the exhibition

FAQ
1.Q.What's your advantage?
A.Honest business with competitive price and professional service on export process.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
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