JM Steel 321 Stainless Steel pipe,mainly used in the manufacture of high pressure and over pressure steam boiler pipes, etc. With high quality carbon structural steel, alloy steel and stainless heat resistant steel seamless steel tube, the boiler tube by the party under high temperature and high pressure pipe and works in high temperature flue gas and steam will happen under the action of oxidation and corrosion, so the steel pipe with high rupture strength, high oxidation resistance, and have good organizational stability, hydraulic prop.
•Round Welded Tube: 180 grit, 320 grit, 400 grit, 600 grit & Mill finishSquare Welded Tube: 180 grit , 400 grit & Mill finish
•Type：Welded，Seamless
Mill tolerances on thickness & flatness applies.Call JM Steel if you need specific sizes or grain direction.
Chemical composition and mechanical properties Of stainless steel 321
| Chemical composition(%) of stainless steel 321 | ||||||||
| element | C | Si | Mn | S | P | Cr | Ni | Mo |
| content | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.03 | ≤0.045 | 17.00-19.00 | 9.00-12.00 | 10.00-14.00 |
| Mechanical properties of stainless steel 321 | ||||
| performance | Yield strength | Conditional yield strength | Hardness | Elongation |
| Proportion | ≥520 Mpa | ≥205 Mpa | ≤ 187hb; ≤ 90hrb; ≤ 200hv | ≥40% |
Packing:
*PVC or interleaving paper to protect surface,
*steel strip to reinforcement.
why choose us?
*Top 20 companies in stainless steel industry trade volume
*Customized processing stainless steel one-stop purchase
*Exports of stainless steel exceeded tens of billions for 5 consecutive years
*We have a complete set of testing equipment, such as ut & ET, hydrauilc testinge quipment, spectrometer, scanning electron microscope, etc, and have passed SGS TUV certification
*JM Steel has hundreds of millions of high-end processing equipment at home and abroad, including precision cutting equipment: advanced Italian Nova stainless steel Kaiping production line, Taiwan Weitai stainless steel cross-cutting line, Taiwan Weitai stainless steel slitting line, large-scale stainless steel cold and hot rolling Flattening machine, slitting machine, etc
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