ASTM a790 uns s31803 pipe

ASTM a790 UNS s31803 pipe

Materials get their standards from prestigious organizations like ASTM International to have particular compositions suitable for specific applications. They also identify a group of materials with the same properties as a UNS or unified numbering system. Each standard and number will be unique for alloys to make pipes and tubes with particular properties for specific uses.

ASTM A790 UNS S31803 is a specific grade of duplex steel with 21% chromium to have high corrosion resistance and strength. A790 American grade steel also has nickel, molybdenum and other elements as per international standard.

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Following content of ASTM A790 UNS S31803 duplex steel material is collected from reliable stockists & suppliers.

Choose from the Middle East’s trusted suppliers of ASME SA 790 UNS S31803 seamless pipe to compare costs and read about what is ASTM A790.

ASME SA 790 UNS S31803 Pipe specification

ASTM A790 UNS S31803 Pipe Specification

A790 S31803 material dimensions A790 S31803 duplex pipe wall thickness A790 S31803 round pipe length
  • SA 790 UNS S31803 welded pipe size: 6” to 24”
  • OD: 6.0-630mm
  • ASTM A790 UNS S31803 seamless pipe size: 1/2” to 8”
  • Thinner wall thickness
  • 0.5 – 20mm

A790 UNS S31803 SMLS pipe wall thickness can be reduced by up to 50%, contact above ASTM A790 UNS S31803
Pipe suppliers for more details

  • A790 S31803 material maximum length : 25000mm
  • Custom/ cut to size
  • 5.8 meters (20 feet)
  • 6 meters (21 feet)
  • 17-24 feet

Contact above stockholders, distributors and stockist for Ex-stock, these ASTM A790 UNS S31803 Pipe
suppliers also offer cut to size material to save your wastage & cost in Saudi Arabia & UAE

Required list of A790 S31803 material mechanical test American standard for OD and thickness ASTM A790 S31803 pipe manufacturing process
  • Flange test (for ASTM A790M welded pipe)
  • Hardness test
  • Tension test
  • Flaring test (for A790 S31803 duplex seamless pipe)
  • Reverse flattening test
  • 100% PMI tested
  • A1016 / A1016M
  • ASTM A999 / A999M
  • DIN EN ISO 1127
  • SA790 S31803 cold rolled pipe
  • ASTM A790 UNS S31803 Hot Finished Seamless pipe
  • A790 UNS S31803 precision cold rolled pipe
  • SA 790 UNS S31803 Cold Finished Seamless pipe
  • A790 S31803 cold drawn pipe
European standard SA 790 S31803 pipe end A790 UNS S31803 SMLS pipe manufacturing type
  • EN 10312 (welded pipe)
  • EN 10296-2 (welded pipe)
  • EN 10216-5 (seamless & welded pipe)
  • EN 10297-2 (seamless pipe)
  • EN 10217-7 (welded pipe)
  • BE (Beveled Ends)
  • PE (Plain End)
  • Seamless
  • Welded
  • ERW
  • EFW
SA790 S31803 seamless pipe wall thickness Meet standards ASTM A790 UNS S31803 surface finish and treatments
  • 4 Inch
  • Schedule 5 / 5S
  • SCH 10 ASTM A790M pipe (Most selling)
  • ASTM A790 UNS S31803 SCH 10S
  • SCH 20
  • SCH 30
  • SCH 40 SA 790 S31803 pipe (Most selling)
  • SCH 40S
  • SCH 80 / 80S
  • SCH 120
  • SCH 160
  • Standard (SCH STD)
  • Ex-Standard (XS)
  • Double Extra Strong (XSS)
  • EN 10088-3
  • NSF 61
  • EN 10216 – 5
  • ASME B36.19
  • ASME B36.19M
  • EN 10217-7
  • EN 10216 – 2
  • DIN 17456
  • DIN 17458
  • EN 10088-2
  • Cold Rolled / Cold Drawn
  • Annealed
  • Polished
  • Sand Blasted
  • Cleaned
  • Passivated
  • Precleaned
  • Pickled (As per ASTM A380)
A790 UNS S31803 SMLS pipe finish QC and SA 790 UNS S31803 material supporting documents List of leading A790 S31803 duplex pipe manufacturers
  • Solution annealed SA 790 S31803 pipe
  • 2B
  • No.4
  • 180 grit polished
  • 320 grit
  • 600 grit
  • Matt finish
  • Cold Drawn
  • 400 grit
  • Mirror
  • BA polishing
  • Annealed & Pickled (A&P)
  • Bright Annealed
Refer these details before buying ASTM A790 UNS S31803 Pipe from manufacturers, suppliers, traders,
stockholders, stockist, or importers

  • Check A790 S31803 round pipe dimensions
  • Origin of material
  • A790 S31803 material detailed inspection plan (appearance, integrity, packaging etc)
  • Labeling verification
  • MTC EN 10204 type 3.1
  • Verify quantity
  • A790 S31803 duplex pipe material, schedule & size as per the work order
  • QC/ Inspection reports
Buy these make ex-stock from verified ASTM A790 UNS S31803 Pipe suppliers in UAE at dealer price

  • Acerinox, Spain
  • ThyssenKrupp AG, Germany
  • POSCO, South Korea
  • ArcelorMittal, Luxembourg (Europe)
  • Aperam, Luxembourg (Europe)
  • Outokumpu, Finland (Europe)
  • Jindal steel pipe, India
  • SMM Oman
  • Tenaris, Luxembourg (Europe)
  • Nippon Steel Corporation, Japan
  • MACSTEEL, Gauteng (South Africa)
  • Tata Steel, India
  • Tubecon, Pretoria (South Africa)
  • Sandvik, Sweden
  • Nippon Yakin Kogyo Co., Ltd., Japan
  • Bristol Metals, USA
  • Sosta, Italy
  • Steelmor, Gauteng (South Africa)
  • Nippon Steel & Sumitomo Metal Corporation, Japan
  • AL JAZEERA, Oman
  • JFE, Japan
ASTM A790 S31803 pipe value added services SA 790 UNS S31803 pipe tolerance A790 S31803 bright annealed pipe standard
  • Threading
  • Cutting
  • Polishing
  • Beveling
  • ±1%
  • GOST
  • DIN
  • ASTM
  • JIS
  • EN
UNS S31803 Pipe Density & Melting Point
  • Density: 7.8g/cm3
  • Melting Point: 1420 °C – 1465 °C

Get in touch with an audited stockist if you have difficulties finding an odd-size ASTM a790 UNS s31803 welded pipe in UAE, see sa 790 UNS s31803 vs UNS s32205

A790 UNS S31803 equivalent

Standard Material name EN/ DIN/ Wnr China Buttweld Fittings Flanges Fasteners Welding Electrode
ASTM A790 UNS S31803 1.4462 / F51 022Cr22Ni5Mo3N ASTM A815 UNS S31803 ASTM A182 F51 ASTM A182 F51 Duplex Welding Electrode

ASTM A790 UNS S31803 chemical composition

UNS P S Si Cr C Mn Ni Mo N Cu
DSS UNS S31803 0.030 0.020 1.00 21.0-23.0 0.030 2.00 4.5-6.5 2.5-3.5 0.08-0.20

Mechanical properties of ASTM A790 S31803 duplex pipe

UNS Tensile Strength Yield Strength
ASTM A790 UNS S31803
  • 90 Ksi
  • 620 Mpa
  • 65 Ksi
  • 450 Mpa

ASTM A790 UNS S31803 Pipe Properties

Heat treatment of A790 S31803 material

UNS Temperature range
ASTM A790 UNS S31803
  • 1020-1100 °C
  • 1870-2010 °F

SA790 S31803 seamless pipe types and forms

ASME SA 790 UNS s31803 seamless pipe

ASME SA 790 UNS S31803 seamless pipe

ASTM a790 UNS s31803 welded pipe

ASTM A790 UNS S31803 welded pipe

a790 s31803 ERW pipe

A790 S31803 ERW pipe

a790 UNS s31803 square pipe

A790 UNS S31803 square pipe

ASTM a790 s31803 round pipe

ASTM A790 S31803 round pipe

ASTM A 790 UNS S31803 SCH 40

ASTM A 790 UNS S31803 SCH 40


  • A790 UNS S31803 round pipe
  • Cold finished seamless pipe
  • SA 790 S31803 rectangular pipe
  • A790 S31803 EFW pipe
  • Bright annealed pipe
  • Solution annealed pipe
  • ASTM A790 S31803 square pipe
  • DSS UNS S31803 seamless pipe
  • A790 UNS S31803 welded pipe
  • SA790 S31803 ERW pipe
  • Hot finished seamless pipe

Find a stocking distributor of the world’s top 10 manufacturers of ASTM a790 s31803 ERW pipe in Dubai with MTC here, see whether s31803 same as 2205.

S31803 duplex steel is one of the grades from the 2205 duplex steel family. The letter “S” is the prefix of the ASME or American Society of Mechanical Engineers to specify the steel with the following numbers identifying the elements in it.

S31803 though part of the 2205 family, differs from many other grades depending on the different compositions. The more the chromium, the duplex becomes super duplex with a higher PREN or pitting resistance equivalent number. S31803 has less chromium and PREN number than 2205.

ASTM, or the American Society for Testing Materials, has specifications for steel and other materials. It starts with a letter like A for ferrous alloys, followed by unique sequential numbers. ASTM A 790 is a specification for duplex steel with consensus from manufacturers, fabricators, specifiers, distributors, and users.

A790 S31803 or ASME SA790 UNS S31803 is a ferrite and austenitic microstructure combination alloy to have both properties. Like the A number by ASTM, S is the prefix of ASME or American Society of Mechanical Engineers with four following numbers. It specifies the composition of chromium, nickel, molybdenum, and other elements.

Duplex SA 790 UNS S31803 Welded Pipe and UNS S32205 are both of the duplex 2205 family. Though most of the compositions between ASTM A790 S31803 and UNS S32205 are identical, there are slight differences. The nitrogen, molybdenum, and nickel of Duplex UNS S31803 Pipe are higher than 31803 slightly. Hence the differences between the two include the following, among others.

  • S32205 with excess nitrogen has more surface safety compared to UNS S31803
  • S32205, with more nickel and molybdenum than S31803 and hence also more potent
Choose the best traders for custom size a790 s31803 square pipe with outstanding quality and prompt delivery at GCC countries, see advantages

A790 UNS S31803 seamless pipe belonging to the 2205 duplex steel family with high chromium content has many advantages. A few of them include the following, among others.

  • Process both the chloride and sulfide ions without cracking as with many other conventional pipes and tubes
  • Possess high strength and superior corrosion resistance because of the high chromium and nickel content
  • With PREN higher than 304 and 316, steel is the first choice in many applications requiring high corrosion resistance pipes and tubes.
  • With double the yield strength of 316 and 317 is possible to make the walls thinner to reduce costs.
Get a large selection of hydrostatic tested ASTM a 790 UNS s31803 rectangular pipe stock at a discounted price; contact for a free sample and view the application

SA 790 UNS S31803 tubing is suitable for many applications in many verticals that require high strength and corrosion resistance. A few of the verticals include chemical industries, automobile components, heat generators, and boiler parts, Also with high corrosion resistance SA 790 tubes are best for seawater and marine environments.

UNS S31803 Welded tubing is workhorse grade duplex steel with strength and weldability properties. It is suitable for various production industries, from oil & gas refining to pollution control equipment. Also, for chemical processes plants that require corrosion cracking resistance from sulfide and chlorine ions.

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