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ASTM A789/A790 Duplex Tubes Manufacturers

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ASTM A789/A790 Duplex Stainless Steel Tubing – UNS S31803, S32205, S32750

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ASTM A789/A790 Duplex Stainless Steel Tubes/Tubing Manufacturers & Suppliers – Buy UNS S31803, S32205, S32750 Seamless & Welded Tubes, with Best Quality and Low Prices!

Metline offers a wide range of ASTM A789/A790 duplex stainless steel tubing, pipe and tube, which has excellent forming and welding characteristics. We have a large scale unit engaged in stocking and exporting ASTM A789/A790 Duplex stainless steel tubing to various customers in India and overseas. S31803, S32205, S32750 Duplex stainless tubing is widely used for manufacturing boilers, superheaters and heat exchangers.

For us quality always stands first, and we would provide 100% free replacement to our customer. At the same time, we also strive to ensure that our quality for cold drawn duplex stainless steel pipes and tubes is the best in the industry. Our continuous focus on quality, price and service has helped us win many order from India, and overseas. We welcome you to contact us for best prices for Duplex stainless steel pipes and tubes from our factory.

  • Specification: ASTM A789 specification covers standard requirements for grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures
  • Grades: S31803, S32205, S31500, S32550, S31200, S31260, S32001, S32304, S39274, S32750, S32760, S32900, S32950, S39277, S32520, S32906
  • Size: 6mm to 630mm
  • Thickness :0.08mm – 15mm (10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH)

Why Choose Metline as Your Source for ASTM 789/A790 Duplex Stainless Steel Tubes?

  • Quality Products: At Metline, our quality promise comes with a 100% replacement guarantee. All our products pass testing requirements of international manufacturing specification. All our duplex stainless steel piping products are manufactured by ISO 9001 certified factory, and shipped with MTC according to EN 10204 3.1.
  • Best Price Guaranteed for Duplex Stainless Steel Tubes: When you source Metline Industries, you source everything directly from the manufacturer and stockholder! We have an average daily sale volume of around 40 tons of steel pipes & tubes from a stock of over 600 tons. We believe in offering our customer’s high quantity discounts and work closely with them on all their project requirements. We always offer the most competitive prices for duplex stainless steel tubing to both prospective and existing customers.
  • Fast Quotations and Delivery: We understand your need for purchasing materials with short lead times. We have extensive stocks of standard size duplex stainless steel pipes and tubes, enabling us to deliver goods on an immediate basis to all our customers in India and overseas. We have wide inventory of stainless steel seamless pipes and tubing’s for fast delivery.
  • Quality Raw Materials: We use high quality raw materials to produce stainless steel pipes and tubes. Our raw materials are quality tested before being used in production of final product. We can also offer stage wise inspection for stainless steel pipes and tubes.
  • Standard and Non Standard Sizes for A789/A790 Duplex Steel Tubing: We can offer stainless steel tubing in both standard and non standard sizes with shortest delivery times.
  • Complete Documentation: We provide complete product related documents to our customers before delivery of the goods.

Description

ASTM A789 Duplex Stainless Steel Tubing, A790 Duplex Seamless and Welded Stainless Steel Pipes Manufacturers & Suppliers

Metline is one of the leading stockholder and supplier of ASTM A789/A790 duplex stainless steel pipes and tubes in outside diameter range of 6.0-630mm. Our stock of ASTM A789/A790 duplex seamless tubing and welded tubing primarily consists of various grades including S31803, S32205, S31500, S32550, S31200, S31260, S32001, S32304, S39274, S32750, S32760, S32900, S32950, S39277, S32520, S32906 in annealed and pickled, 2B finish annealed, mill finish and polished conditions. Our high quality steel pipes, good customers service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers of ASTM A789/A790 duplex stainless steel seamless pipes and welded pipes and tubes.

Related Product Searches: Duplex Steel S31803 Tubes, Duplex Steel S32205 Tubes, Duplex Steel S31500 Tubes, Duplex Steel S32550 Tubes, ASTM A789/A790 Duplex Steel S32750 Tubes, ASTM A789/A790 Duplex Steel S32520 Tubes, Duplex Stainless Steel Tubes S31803, Duplex Stainless Steel Tubes S32205, Duplex Stainless Steel Tubes S31500, Duplex Stainless Steel Tubes S32550, Duplex Stainless Steel Tubes S32750, Duplex Stainless-steel Tubes S32520

ASTM A789/A790 Duplex Stainless Steel Pipes and Tubes Production, Stock & Supply Range

ProductASTM A789/A790 Duplex & Super Duplex Stainless Steel Pipes and Tubes
Size
  • Seamless pipe & Tube Size: 1/2” to 8”
  • Welded pipe & Tube Size: 6” to 24”
Thickness2 mm – 30mm (10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH)
GradeGrades S31803, S32205, S31500, S32550, S31200, S31260, S32001, S32304, S39274, S32750, S32760, S32900, S32950, S39277, S32520, S32906
Flaring Test (Seamless Tubes)One test shall be made on specimens from one end of one tube from each lot of finished tubes.
Flange Test (Welded Tubes)One test shall be made on specimens from one end of one tube from each lot of finished tubes
Hardness TestBrinell or Rockwell hardness determination shall be made on specimens from two tubes from each lot
Reverse flattening TestFor welded tubes, one reverse flattening test shall be made on a specimen from each 1500ft(460m) of finished tubes
Hydrostatic or Nondestructive TestingEach pipe shall be subjected to the nondestructive electric test or the hydrostatic test
CertificationEN 10204 3.1
TestingHydro Tested, Chemical, Mechanical Test, PMI
InspectionThird Party Inspection, Buyer Inspection
PackingWeaving Bag, Seaworthy Bundles, Wooden Case if required
Delivery Time1-2 Days for Material in Stock, 7-30 Days for Make to Order Materials
Applicationwidely used in various industries, such as onshore and offshore oil and gas industry, chemical process industry, food industries, construction industry and transportation pipelines

ASTM A789 Specifications

This specification covers standard requirements for grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures. Heat and product analyses shall be performed wherein the steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, nitrogen, copper, and others. All tubes shall be furnished in the heat-treated condition in accordance with the specified temperature and quench conditions. When the final heat treatment is in a continuous furnace, or when heat treated condition is obtained directly by quenching after hot forming, the number of tubes of the same size and from the same heat in a lot shall be determined from the prescribed sizes of the tubes. The material shall conform to the prescribed tensile and hardness properties. Mechanical tests such as tension test, flaring test (for seamless tubes), flange test (for welded tubes), hardness test, and reverse flattening test shall be performed on the steel tubing. Each tube shall also be subjected to the nondestructive electric test or the hydrostatic test.

Chemical Composition of ASTM A789/A790 Duplex Stainless Steel Pipes and Tubes

UNSComposition, %
DesignationCMnPSSiNiCrMoNCuOthers
Maxmaxmaxmaxmax
S318030.0320.030.0214.5-6.521.0-23.02.5-3.50.08-0.20. . .. . .
S322050.0320.030.0214.5-6.522-233.0-3.50.14-0.20. . .. . .
S315000.031.20-2.000.030.031.40-2.04.3-5.218-192.5-3.00.05-0.10. . .. . .
S325500.041.50.040.0314.5-6.524-272.9-3.90.10-0.251.50-2.50. . .
S312000.0320.0450.0315.5-6.524-261.-2.00.14-0.20. . .. . .
S312600.0310.030.030.755.5-7.524-262.5-3.50.10-0.300.20-0.80W 0.10-0.50
S320010.034.0-6.00.040.0311.0-3.019.5-21.50.60.05-0.171.00 max. . .
S323040.032.50.040.0413.0-5.521.5-24.50.05-0.600.05-0.200.05-0.60. . .
S327500.031.20.0350.020.86.0-8.024-263.0-5.00.24-0.320.50max. . .
S327600.0510.030.0116.0-8.024-263.0-4.00.20-0.300.50-1.00W 0.50-1.00
S329500.0320.0350.010.63.5-5.226-291.0-2.50.15-0.35. . .. . .
S325200.031.50.0350.020.85.5-8.023-253.0-5.00.20-0.350.8. . .

Mechanical Composition Of ASTM A789/A790 Duplex Stainless Steel Tubes and Pipes

GradeTensile strength, min., ksi [MPa]Yield strength, min., ksi [MPa]Elongation in 2 in., or 50mm, min, %Hardness, Max
Brinell
S3180390 [620]65 [450]25290
S3220595 [655]70 [485]25290
S3150092 [630]64 [440]30290
S32550110 [760]80 [550]15297
S31200100 [690]65 [450]25280
S31260100 [690]65 [450]25290
S3200190 [620]65 [450]25290
S32304100 [690]65 [450]25290
S32750116 [800]80 [550]15310
S32760109 [750]80 [550]25300
S32950100 [690]70 [480]20290
S32520112 [770]80 [550]25310

ASTM A789 Specification and Grades of Stainless Steel Tubes and Pipes

UNS DesignationSpecification
S31803ASTM A789/SA789
S32205ASTM A789/SA789
S31500ASTM A789/SA789
S32550ASTM A789/SA789
S32750ASTM A789/SA789
S32950ASTM A789/SA789
S32520ASTM A789/SA789

Application Of ASTM A789/A790 Duplex Stainless Steel Pipes and Tubes

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
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