duplex stainless steel tubing manufacturer and suppliers

Duplex stainless steel tubing | Super duplex stainless steel tubing

duplex stainless steel tubing Manufacturer, Stockholder, Suppliers and Exporter in India

Grades: Type 304 | Type 304L | Type 304H | Type 316 | Type 316L | Type 316H | Type 317L | Type 321 | Type 347 | Type 410 | Type 904L | UNS S32750 Duplex | UNS S32205 Duplex | UNS S31803 Duplex

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duplex stainless steel tubing

Ashtapad Overseas maintains one of the world’s largest inventories of Stainless Steel Pipe (welded and seamless), Fittings, and Flanges for energy and industrial applications. Ashtapad Overseas is a family owned and operated steel pipe fittings & flanges manufacturer. We are recognized and revered worldwide as the most qualified and capable manufacturer & supplier of small to medium size stainless, carbon and alloy tubing, pipe, pipe fittings & duplex stainless steel tubing. Ashtapad is well positioned to meet the needs of a variety of markets.

duplex stainless steel tubing supplied by us are industry standard approved and certified. Have major applications in Oil, Gas, Petrochemical, Power and Desalination, Civil Construction, Ship Building, Marine, Food, Dairy and other associated industries. Few of the major brands we represent are Arcelor Mittal, Sumitomo, Tenaris, Benteler, Jazeera Steel, Hyundai HYSCO, Arabian Pipes Company, Sandvik, Froch, etc. Our materials are approved by Saudi ARAMCO, SABIC, SHELL, ADNOC, GASCO, PDO, KNPC, KOC, QATAR Gas, SGC etc.

We are nickel alloy, titanium, duplex alloy, and stainless steel suppliers to businesses throughout India and in over 45 countries. Ashtapad offers a wide range of Round Pipes & Tubes, Coil, ‘U’ Shape tubes, Square pipes & tubes, Rectangular tubes, duplex stainless steel tubing, 316 Seamless Tubing316 Seamless Pipess 316l Seamless Pipe304 Seamless Tube304 Seamless Stainless Steel Tubing & Hydraulic Tube etc. We can meet most ASME, ASTM, AMS, and military specifications, and can cross-reference to most international standards, including full DIN 3.1b, full 3.1/3.2 Certifcation and NACE requirements.

duplex stainless steel tubing Dimensional Range & Standard Specification

Duplex stainless steels are resistant to the cracking caused by chloride stress corrosion in austenitic grades, and have improved resistance to localised corrosion. This family of stainless steels has roughly twice the yield strength of their counterpart austenitic grades which means we can use it to design thinner gauge tubing. Higher hardness values provide better wear resistance for high precision tubes.

Duplex steels are easily welded and formed, similar to austenitic grades. Depending on chromium, nickel and molybdenum content, duplex stainless steels are divided into four main categories: lean duplex, duplex, super duplex and hyper duplex. This family of alloys has great advantages in both material and engineered fabrication costs.

We offer duplex stainless steel tubes in the following alloys:

Alloy UNS WNR
Duplex S31803 1.4462
Super Duplex S32750 1.441
Super Duplex S32760 1.4501

Ashtapad meets mainly the following standards and complies e.g. to the following certifications:

Stainless steel alloy tubing
ASTM/ASME (Boiler pressure code) 

ASTM A 213/SA 213   Seamless ferritic and austenitic alloy steel boiler, super heater and heat exchanger tubes
ASTM A 269/SA 269   Seamless and welded austenitic stainless steel tubing for general service 

ASTM A 312/SA 312

Seamless and welded austenitic stainless steel pipes
ASTM A 511   Seamless stainless steel mechanical tubing (mainly large tube sizes)
ASTM A 632 Seamless and welded austenitic stainless steel tubing for general service (small diameter)
ASTM A 789/SA 789  Seamless and welded ferritic-austenitic stainless steel tubing for general service (duplex/super duplex)
ASTM A790/SA 790    Seamless and welded ferritic-austenitic stainless steel pipe

Nonferrous Metals Nickel and others Tubing
ASTM/ASME (Boiler pressure code)

ASTM B 68/B 68M Seamless copper tube, bright annealed for general service
ASTM B 75/B 75M Seamless copper tube, standard certification 
ASTM B 161/SB 161          Nickel seamless pipe and tube (UNS N02200; N02201) (200/201)
ASTM B 163/SB 163  Seamless nickel and nickel alloy condenser and heat exchanger tubes (e.g. UNS N02200; N04400; N06600; N08800) (200/400/600/800)
ASTM B 165/SB 165 Nickel-copper alloy (UNS N04400), seamless nickel pipe and tube (400)
ASTM B 167/SB 167 Nickel-chromium-iron alloys (UNS N06600, N06601 and N06690), seamless pipe and tube (600/601/625)
ASTM B 407/SB 407 Nickel-iron-chromium alloys (UNS N08800; N08810; N08811), seamless pipe and tube (800/800H/800HT)
ASTM B 423/SB 423 Nickel-iron-chromium-molybdenum-copper alloys (UNS N08825), pipe and tube (825)
ASTM B 444/SB 444 Nickel-chromium-molybdenum-columbium alloys (UNS N06625), pipe and tube (625)
ASTM B 523/SB 523 Seamless and welded zirconium alloy tubes for general service
ASTM B 622/SB 622 Seamless nickel and nickel-cobalt alloy pipe and tube (N10276 (C276); N06022 (C22); NO6455 (C4); NO10665 (B2))
ASTM B 668/SB 668 Seamless tubes (UNS N08028) (28)
ASTM B 677/SB 677 Seamless pipe and tube (UNS N08904) (904L)
ASTM B 729/SB 729  Seamless pipe and tube (UNS N08020) (20)

European standards 

EN 10216-5 Seamless stainless steel tubes for pressure purposes 
EN ISO1127 Seamless stainless steel tubes (Dimensions and weight) 

ASTM international (American Society for Testing and Materials) is globally recognized leader in the development and delivery of international voluntary consensus standard. To improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.

duplex stainless steel tubing sizes & stock

PIPE TUBE TYPE NB SIZES SCH 5 SCH 10 SCH 40 SCH 80 SCH 160
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1/8"
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1/4"
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3/8"
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1/2"
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3/4"
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1"
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1 1/4"
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1 1/2"
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2"
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2 1/2"
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3"
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4"
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5"
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6"
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duplex stainless steel tubing price

Click here for stainless steel pipe price list (updated price list)

ASTM A312 TP 310 Stainless Steel Welded Pipe at Factory price

send mail to Ashtapad to buy at Factory Rate  

Cities We Deliver To: Mumbai, Bengaluru, Chennai, New Delhi, Pimpri-Chinchwad, Houston, Dubai, Seoul, Hyderabad, Singapore, Abu Dhabi, Pune, Kolkata, Gurgaon, Navi Mumbai, Ahmedabad, Tehran, Calgary, Noida, Riyadh, Vadodara, London, Coimbatore, Jakarta, Istanbul, Bangkok, Kuwait City, Thane, Sharjah, Muscat, Edmonton, Busan, Mexico City, Doha, Jeddah, Aberdeen, Cairo, Geoje-si, Perth, Santiago, Chandigarh, Indore, Kuala Lumpur, Rio de Janeiro, Dammam, Melbourne, Madrid, Surat, Bhopal, Ulsan, Faridabad, La Victoria, Bogota, Lahore, Los Angeles, Algiers, Chiyoda, Ankara, Ho Chi Minh City, Toronto, Hong Kong, Rajkot, Brisbane, Petaling Jaya, Ernakulam, Secunderabad, Gimhae-si, Al Jubail, Port-of-Spain, Thiruvananthapuram, Milan, Atyrau, Lagos, Hanoi, Howrah, Sydney, Ahvaz, Karachi, New York, Caracas, Vung Tau, Al Khobar, Manama, Montreal, Granada, Courbevoie, Visakhapatnam, Ludhiana, Moscow, Dallas, Haryana, Colombo

Countries We Deliver To: India, United States, United Arab Emirates, Canada, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Saudi Arabia, Netherlands, Brazil, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Russia, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Angola, Argentina, Austria, Azerbaijan, Bangladesh, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia

Europe: Germany, Netherlands, Russia Finland, Czech, Ukraine, Italy, Spain, Poland
Middle East:Iran, UAE, SA, Iraq, Qatar, Isreal, Jordan, Bahrain, Kuwait
South America:Brazil, Chile, Peru, Venezuela, Uruguay, Argentina
Africa: Egypt, South Africa, Nigeria
Central & North America:Mexico, US, Canada, Costa Rica
South East Asia and Pacific:Japan, South Korea, Singapore, Thailand, Indonesia, Australia

Check also (304 grade):

duplex stainless steel tubing brand manufacturers

stainless steel pipe manufacturers

  • Sumitomo duplex stainless steel tubing | Sumitomo Metals, Japan
  • Nippon duplex stainless steel tubing | Nippon Steel Corporation, Japan
  • Kobe duplex stainless steel tubing | Kobe Special Tube, Japan
  • Sanyo duplex stainless steel tubing | Sanyo Special Steel, Japan
  • Tubacex duplex stainless steel tubing | Tubacex Tubos Inoxidables S.A., Spain
  • Schoeller duplex stainless steel tubing | Schoeller Bleckmann, Austria
  • Seah duplex stainless steel tubing | Seah Steel Corporation, Korea

 

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