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ASTM A790 S31803 Duplex Seamless Pipe

ASTM A790 S31803 Duplex Seamless Pipe ASTM A790 S31803 steel is a Ferritic Austenitic duplex grade, with high chromium and molybdenum elements, it is the most widely used duplex stainless, UNS S31803 has excellent corrosion resistance, and high strength feature, generally S31803 seamless pipe is...

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  • ASTM A790 S31803 Duplex Seamless Pipe
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ASTM A790 S31803 Duplex Seamless Pipe

ASTM A790 S31803 steel is a Ferritic Austenitic duplex grade, with high chromium and molybdenum elements, it is the most widely used duplex stainless, UNS S31803 has excellent corrosion resistance, and high strength feature, generally S31803 seamless pipe is applied in corrosion and high-temperature environment.


ASTM A790 Standard:

ASTM A790 / A790M specification specify duplex welded and seamless steel pipe manufacturing, sizes, tolerances, testing condition, Ronsco Supply stainless supply A790 standard seamless pipe with high quality, dimensional accuracy, and excellent finish.


S31803 Duplex Stainless Steel:

S32205 / 2205 is an alternative grade with S31803 for welded pipe, for seamless pipe, it is a little difference in chemical position. in Europe, It is DIN 1.4462.


S31803, 2205 (S32205) Chemical Composition (Max, %)

  C Mn Si P S Cr Mo Ni N
S31803 0.03 2.0 1.0 0.03 0.02 21.0 - 23.0 2.5 - 3.5 4.5 - 6.5 0.08 - 0.20
2205
(S32205)
0.03 2.0 1.0 0.03 0.02 22.0 - 23.0 3.0 - 3.5 4.5 - 6.5 0.14 - 0.20


S31803, 2205 (S32205) Properties:

  Tensile Strength (Mpa) Min Yield Strength (Mpa) Min Elongation (%) Hardness (HRC) Max
S31803 620 450 25 30
2205 (S32205) 655 485 25 30

S31803 Duplex Seamless Pipe

ASTM A790 standard state seamless pipe dimensions conforming to ANSI B36.19 pipe schedule chart, NPS range from 1/8 inch to 30 inches, Sch range from 5S to XXS, other sizes pipe can be offered on request.

We supply ASTM A790 S31803 Duplex seamless pipe in various sizes, cold drawing and cold rolled manufacturing process is made to reduce outside diameter or wall thickness, annealed and pickling finishes, bright annealing finishing is available.

ASTM A790 S31803 Duplex seamless pipe is used in many applications because of duplex steel features, particularly in elevated temperature environments.

Production Processing:

Stainless Steel Pipe Processing



Application:

Pipes for production and transportation of oil and gas

Structural and mechanical components

Desalination equipment

Heat exchangers

Cooling pipes


Why Choose Ronsco: 


Why Choose US:

Hunan Allianz Metal Products Co., LTD, established in 1996, which enjoys a great reputation among over 1000 customers and cooperation partners from more than 60 countries.

We have regularly kept over 6000 tons of stock, including stainless steel welded pipes, stainless steel seamless pipes, stainless steel pipe fittings, and round bars. Overmore, 3 days delivery time for common products, which helps our customers a lot to close a deal with their partners. 

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