Duplex Stainless Steel Tube Manufacturers in India

  • Duplex steels have improved strength over authenticate stainless steels and improved resistance to localized corrosion, particularly pitting, crevice corrosion and stress corrosion cracking.

  • Duplex Stainless Steel Tube Available Size 1/2″NB TO 12 “NB 

  • Standard of Duplex Stainless Steel Tubes are ASTM A790 / ASTM SA790

Duplex Stainless Steel Tube Suppliers – Top Quality Duplex Stainless Steel Tube in India!

  • Asiamet is a leading duplex stainless steel pipe/tube (stainless steel duplex pipe/tube) manufacturer and supplier.
  • The duplex stainless steel tube has good welding performance. Compared with ferritin stainless steel and authenticate stainless steel, it is not like the welding heat affected zone of inferring stainless steel and the plastic toughness is greatly reduced due to severe grain coarsening. Not is it sensitive to hot cracking of welds like authenticate stainless steel.
  • Due to its special advantages duplex stainless steel is widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, paper making machinery and other industrial fields. In recent years it has also been studied in the field of bridge load-bearing structures. Prospects. Duplex stainless steel is half of the fritter phase and austenite phase in its solidified structure, and the minimum phase content may be up to 30%.
  • The mechanical properties of duplex steels are approximately double those of singular authenticate steels and resistance to stress corrosion cracking is far superior to type 316 stainless steel in chloride solutions. Duplex steel has a ductile or brittle transition at approximately -50 degrees.
Product Duplex Stainless Steel Tube
Size 1/2″NB TO 12 “NB
Schedule SCH20, SCH30, SCH40, STD, SCH80
Type Seamless / ERW / Welded
Packing Bundled Packing, Loose
Price Terms Ex-Works, FOB, CIF, CFR, CNF
Latest Price Call +919619672006
Email sales@asiametsteel.com

Duplex Stainless Steel Tube Suppliers, Dealers
  • Do you want to know how much does a duplex stainless steel tube cost? Do you want to know where you can get the best price and quality steel tube in India?

  • We are ready to provide you our quality products, fast delivery service and custom cut tube sizes. Send us your detailed inquiry to us, our professional staff will get back to you with our best solution and costs.

  • The experts here in this company are aimed to provide the best quality of tube as per the requirement and demand of customers.

What is a Duplex Stainless Steel Tube?

Duplex stainless steels are called “duplex” because they have a two-phase micro structure consisting of grains of ferritin and authenticate stainless steel. Strength duplex stainless steels are about twice as strong as regular authenticate or inferring stainless steels. Duplex stainless steels have a mixed micro structure of Austen and fritter the aim being to produce a 50/50 mix, although in commercial alloys the mix may be 40/60 respectively.

Duplex steels have improved strength over authenticate stainless steels and improved resistance to localized corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. They are characterized by high chromium (19–28%) and molybdenum (up to 5%) and lower nickel contents than authenticate stainless steels. The most used duplex stainless steels are the 2205 (22% Chromium, 5% Nickel) and the 2507 (25% Chromium, 7% Nickel); 2507 is known as “super duplex” due to its higher resistance to corrosion.

Chemical Composition of Duplex Steel Tube

Chemical Composition of Duplex Steel
Carbon ≤0.03
Manganese ≤2.00
Silicon ≤1.00
Phosphate ≤0.03
Sulfur ≤0.02
Chromium 21.0-23.0
Nickel 4.5-6.5
Molybdenum 2 5-35
Nitrogen 0.08-0.2

Mechanical Properties of Duplex Steel Tube

Mechanical Properties of Duplex Steel
Tensile Strength Yield Strength Elongation Rockwell Charpy V- North Impect
Ksi.(Mpa) Ksi.(Mpa) % Hardness mm-N/ mm mm-N/ mm
125(852) 90(621) 28 25C 1310 844

Features of Duplex Stainless Steel Tube

  • Excellent finish
  • High energy absorption
  • Dimensional accuracy
  • High strength and Durable
  • Good work ability and weld ability
  • Good sulfide stress corrosion resistance
  • High resistance to pitting, crevice corrosion resistance
  • High resistance to stress corrosion cracking, corrosion fatigue and erosion
  • Low thermal expansion and higher heat conductivity than authenticate steels

Application of Duplex Stainless Steel Tube

  • Economizers
  • Instrumentation
  • Pulp and paper
  • Pharmaceutical
  • Heat Exchangers
  • Nuclear Power Plants
  • Automotive industries
  • Aerospace and Medical
  • Oil coolers and Pre-heater
  • Condenser and LNG
  • Offshore construction
  • Electrical Submersible Pump
  • Hydraulic & Pneumatic system
  • Food and pharmaceutical processing
  • Desalination and wastewater projects

Test Certificates

  • Manufacturer Test Certificate as per EN 10204 / 3.1B
  • Raw Materials Certificate, 100% Radiography Test Report
  • Third Party Inspection Report

Quality Assurance

Asiamet all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All forged fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also make custom marking on our products.