Specifications
Brand Name :
YUHONG
Model Number :
A790 S31803 Seamless Pipe
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
China
MOQ :
1000KGS
Price :
Negotiable
Payment Terms :
T/T,L/C
Supply Ability :
1000 tons per month
Delivery Time :
Depends on quantity
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Specification :
ASTM A790, ASME SA790
Grade :
S31803
Type :
Seamless
Surface :
Pickled and Annealed, Polished, Bright Annealed
Non Destructive Test :
Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213
Size Standard :
ASTM B16.10 & B16.19 & Customized
Description

ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant

UNS S31803, F51, 1.4462 duplex stainless steel is designed to combine improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys.

These attributes mean that Duplex UNS S31803, F51, 1.4462 can be used successfully as an alternative to standard stainless steel specifications in applications where higher strength and resistance to stress corrosion cracking is required.

Chemical Composition of S31803

Property Value
Carbon

0.03%

Chromium

21-23%

Manganese

2%

Molybdenum

2.5-3.5%

Nickel

4.5-6.5%

Nitrogen

0.08-0.02%

Phosphorus

0.03%

Silicon

1%

Sulfur

0.02%

Mechanical Behaviour

Property Value
Tensile Strength, min, ksi, [MPa] 90 [ 620]
Yield Strength, min, ksi [MPa] 65 [450]
Elongation in 2 in. or 50mm, min, % 25
Hardness, max HBW HRC
290 30

Tolerances Of ASTM A790 UNS S31803 Pipe

NPS Designator Permissible Variations in Outside Diameter
Over In. Under In.
1/8 to 1-1/2, incl 1/64 (0.015) 1/32 (0.031)
Over 1-1/2 to 4, incl 1/32 (0.031) 1/32 (0.031)
Over 4 to 8, incl 1/16 (0.062) 1/32 (0.031)
Over 8 to 18, incl 3/23 (0.093) 1/32 (0.031)

Pressure Rating

Pipes O.D. (in.) Duplex Steel 2205 Pipe Wall Thickness of Pipe (inches)
.035 .109 .028 .065 .049 .095 .083 .120
1/4 4800 3700 9500 7000
1/8 10100 7900
3/8 3100 6100 4400
5/16 3700 7300 5400
3/4 3000 2200 4600 4000
1/2 2300 4400 3200
1 3900 2200 3400 2900 4300

ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant

Duplex Stainless Steel Features

Duplex stainless steels have Austenitic and Ferritic stainless steel microstructure, and possess properties in two groups stainless steel, however, there are different.

Versus Austenitic

  • Higher yield strength
  • Greater corrosion resistance
  • Stress corrosion cracking resistance
  • Not common, used temperate under 250 C.
  • Fabricability not good as Austenitic
  • Strictly control heat treatment and welding process
  • Price stability

Versus Ferritic

  • Good toughness than Ferric, not hard
  • Greater corrosion
  • Fabricability is better
  • Better weldability
  • Wide usage than Ferritic
  • Higher price

APPLICATIONS:

· Chemical processing, transportation and storage

· Oil and gas exploration and offshore drilling rigs

· Oil and gas refining

· The marine environment

· Pollution control equipment

· Pulp and paper manufacturing

· Chemical process plant

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ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant

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Brand Name :
YUHONG
Model Number :
A790 S31803 Seamless Pipe
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
China
MOQ :
1000KGS
Price :
Negotiable
Contact Supplier
ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant
ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant
ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant
ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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