409 Stainless Steel Sheet And Plate
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 409 stainless steel sheet and plate in China. If you're going to wholesale high quality 409 stainless steel sheet and plate made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Type 409 Stainless Steel (UNS S40900) is a stabilized ferritic stainless steel that provides improved oxidation and corrosion resistance compared to carbon steel. Ease of fabrication combined with its corrosion resistance and economy have significantly broadened its utilization in automotive exhaust and other non-automotive applications. ASTM A240 defines three (3) sub categories of Type 409 stainless steel; UNS S40910, UNS S40920 and UNS S40930. Each of these designations has a slightly different Ti or Nb stabilization requirement. Each of these compositions can be supplied as UNS S40900 unless the purchaser specifically identifies a specific composition.
| Element | UNS S40910 | UNS S40920 | UNS S40930 |
|---|---|---|---|
| Carbon | 0.030 max. | 0.030 max. | 0.030 max |
| Manganese | 1.00 max. | 1.00 max. | 1.00 max. |
| Sulfur | 0.020 max. | 0.020 max | 0.020 max |
| Phosphorus | 0.040 max. | 0.040 max. | 0.040 max. |
| Silicon | 1.00 max. | 1.00 max. | 1.00 max. |
| Chromium | 10.5 – 11.7 | 10.5 – 11.7 | 10.5 – 11.7 |
409 stainless can be cut, blanked stretch formed and drawn without difficulty. The formability characteristics of Type 409 are very similar to carbon steel.
Type 409 is readily welded using the conventional welding procedures common to carbon steel. These include high frequency, resistance, gas tungsten arc (GTAW or TIG), gas metal arc (GMAW or MIG), electron beam and laser techniques. Although autogenous welds are common, particularly in manufacture of tubing, a filler metal, Type 409Cb, is often employed.
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