Alloy S31803 And Alloy S32205 Duplex Stainless Steel
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of alloy s31803 and alloy s32205 duplex stainless steel in China. If you're going to wholesale high quality alloy s31803 and alloy s32205 duplex stainless steel made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Alloy S31803 and S32205 stainless steel is a dual-phase stainless steel whose grain structure is ferritic and austenitic, hence the name 'duplex'. With twice the mechanical strength and corrosion resistance of common austenitics, alloy S31803 and S32205 stainless steel offers some advantages over 316L and 317L:
Lower coefficient of thermal expansion and a higher thermal conductivity
Resists chloride stress corrosion cracking
Pitting and crevice corrosion resistance
Excellent choice for high chloride environments
Lower cost than high alloyed austenitic
Alloy S31803 and Alloy S32205 Stainless Steel is used most often in heat exchangers, marine construction, oil and gas industry, chemical processing.
| Type | Sizes | Schedules | ASTM Standards |
|---|---|---|---|
| Bar | - | - | A276, A479 |
| Butt Weld Fittings | 1/2" thru 12" | Sch 10, 40, 80, 160 | A815 |
| Forgings | 1/2" thru 12" | WN, SO, & BO Flanges | A182 |
| Pipe Welded & Seamless | 1/4" thru 16" | Sch 10, 40, 80, 160 | A790 |
| Tube, Welded | - | - | A789 |
| Plate | - | - | A240 |
Excellent general corrosion resistance; superior to Grade 316 steel in most environments. Excellent resistance to localized corrosion including inter granular, pitting and crevice corrosion; the CPT of 2205 is generally at least 35ºC. The grade is also resistant to chloride stress corrosion cracking (SCC) at temperatures of up to about 150ºC. Grade 2205 will often perform well in environments which cause premature failure of austenitic grades. It has better resistance to sea water than Grade 316.
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