S31803 Stainless Steel

Characteristic: corrosion resistance
Standard: ASME, ASTM, EN, UNS, GB, DIN, JIS
Certification: ISO, CE, ROHS
Payment Terms: T/T, L/C, Paypal, Western Union

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Product Details


S31803 Stainless Steel Chemical Composition

C

Mn

Si

P

S

Cr

Ni

Mo

N

≤0.030

≤2.00

≤1.00

≤0.030

≤0.020

22.0~23.0

4.5~6.5

3.0~3.5

0.14-0.20

 

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The S31803 dual  phase stainless steel is a duplex stainless steel made of 21% chromium,2.5%  molybdenum and 4.5% nickel-nitrogen alloy.
 It has high  strength, good impact toughness and good overall and local resistance to stress  corrosion. The yield strength of the S31803 duplex stainless steel is twice  that of austenitic stainless steel, which allows the designer to reduce the  weight in the design of the product, giving the alloy a price advantage over  316,317 L.

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This alloy is  particularly suited to - + 50 ° F / 600 ° F temperature range. Applications  beyond this range can also be considered for this alloy, but there are some  limitations, especially when applied to welding structures.


Product Description


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S31803 Stainless Steel  Characteristic:

1.S31803 duplex  stainless steel and 316 l and 317 l austenitic stainless steel, steel S31803  duplex on pitting corrosion and crevice corrosion resistance is superior, it  has the very high corrosion resistance, compared with austenitic, its lower  thermal expansion coefficient, high thermal conductivity.

2. Compared with  austenitic stainless steel, S31803 dual-phase stainless steel has twice the  compressive strength, compared with 316L and 317L, the designer can reduce its  weight. Especially suitable for 2205 alloy + 50 ° F / 600 ° F temperature  range, in the case of restricted (especially for welding structure), can also  be used to lower the temperature.


Product Application


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S31803 Stainless Steel  Application:

  • pressure vessel, high pressure storage  tank, high pressure pipe, heat exchanger (chemical processing industry).

  • oil and gas pipeline, heat exchanger pipe  fittings.

  • sewage treatment system.

  • pulp and paper industry classifier,  bleaching equipment, storage and processing system.

  • rotary shaft, press roller, blade and  impeller in high strength and corrosion resistance environment.

  • cargo containers for ships or trucks.

  • food processing equipment.

 

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