Pipes & Tubes

Stainless Steel 321 / 321H Pipes & Tubes Supplier

Stainless Steel 321 Seamless Pipe, UNS S32100, 321H Stainless Steel Pipe, SS 321 Seamless Tubing, Stainless Steel 321 Welded Pipes, ASTM A312 TP321 Stainless Steel Pipes, S32109 Pipes, 1.4541, 1.4878 Tubes, SUS 321 Pipe & Tubes, Stainless Steel 321H Pipes Supplier in Mumbai, India.

ASME SA 213 TP321H Seamless Tubes, SS 321 ERW Pipes, 321H Stainless Stel ERW Tubes, Stainless Steel 321 Welded Tubes, 321 Stainless Steel Tubing, ASTM A358 TP321 EFW Pipes, SS 321 Tubing Stockist, Stainless Steel 321H Seamless Tubes, SS 321 Pipes Exporter in India.

Simplex Steel Industries are one of the well-known manufacturers, stockiest, exporter, stockholder, and supplier of a qualitative range of Stainless Steel 321/ 321H Pipes and Tubes.. Our pipes and tubes are fabricated as per the national and international quality standards. We manufacture our pipes and tubes as per the requirement of our esteem clients. Our pipes and tubes are produced with the use of better quality of raw materials. Our SS 321/ 321H Pipes and Tubes have the demand where higher strength and tighter tolerances are necessary. Our range of pipes and tubes are known for its high quality, zero defects, and superior performances. Our SS UNS S32100 / S32109 Seamless Pipes and Tubes are the standards Austenitic Chromium-Nickel alloy with the addition of titanium, making our pipes and tubes an excellent choice in elevated environments. Typical applications of our SS 321/ 321H Pipes and Tubes are oil refinery equipment, industrial boilers, pressure vessels, chemical and pharmaceutical equipment, petrochemical refineries, and chemical process heat exchangers.

Simplex Steel Industries have a well-equipped manufacturing unit where we have the machinery in the large quantity. Our machinery which we are using for pipes and tubes manufacturing are modern and well equipped. We manufacture our SS 1.4541, 1.4878 Pipes and Tubing in the standards and customized sizes in such a way so that our clients can select it accordingly. We also do check the quality standards of our pipes and tubes at every level of production to ignore the defects and to make changes if needed.

We, Simplex Steel Industries are having the team of experts, engineers and experienced employees in our organization. Our expert members and engineers supervise the whole manufacturing process to maintain quality standards higher. Simplex Steel Industries also does the packaging and delivery of our pipes and tubes at the client’s locations. We also do the various test of our manufactured products before packaging and delivery of our pipes and tubes, and if our products are found up to the mark, then we do the delivery of our pipes and tubes to the clients. We are happy to provide excellent products at reasonable rates.

Value Added Services

  • Annealed & Pickled Bending
  • Machining
  • Draw & Expansion


  • Surface finish
  • Ductility
  • Cryogenic strength


  • Hardness Test
  • Tensile Test
  • Intergranular Corrosion Test

ASTM A312 / A213 Stainless Steel 321 / 321H Pipes & Tubes Stock

Stainless Steel 321 / 321H Seamless Pipe
  • SS 321 / 321H Seamless Pipe

Stainless Steel 321 / 321H Welded Pipe
  • SS 321 / 321H Welded Pipe

Stainless Steel 321 / 321H ERW Pipe
  • SS 321 / 321H ERW Pipe

Stainless Steel 321 / 321H EFW Pipe
  • SS 321 / 321H EFW Pipe

Stainless Steel 321 / 321H Seamless Tubes
  • SS 321 / 321H Seamless Tubes

Stainless Steel 321 / 321H Welded Tubes
  • SS 321 / 321H Welded Tubes

Stainless Steel 321 / 321H ERW Tubes
  • SS 321 / 321H ERW Tubes

Stainless Steel 321 / 321H Round Tubing
  • SS 321 / 321H Round Tubing

Stainless Steel 321 Pipes & Tubing Specification

Standards ASTM, ASME
Designation A213, A249, A269, A312, A358
Outer Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB
Thickness 0.3mm – 50 mm
Type Seamless / ERW / EFW / Welded / Fabricated / LSAW Pipes
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Seamless Pipes & Tubes Size 1 / 8" NB - 24" NB
ERW Pipes & Tubes Size 1 / 8" NB - 36" NB
EFW Pipes & Tubes Size 6" NB - 100" NB
Length Single Random, Double Random & Required Length
Form Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
End Plain End, Beveled End, Treaded

ASME SA 312 / SA 213 TP321 / 321H Pipe Equivalent Grades

SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

SS 321 / 321H Pipes & Tubing Chemical Composition

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2 max 1 max 0.045 max 0.030 max 17 - 19 0.10 max 9 - 12 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2 max 1 max 0.045 max 0.030 max 17 - 19 0.10 max 9 - 12 4(C+N) – 0.70 max

Stainless Steel 321 / 321H Pipe & Tube Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Other Types of Stainless Steel 321 / 321H Pipes & Tubes

  • SS 321 Seamless Pipe
  • Stainless Steel 321H Pipes
  • SS 321 Seamless Tubing
  • Stainless Steel 321H Welded Pipes
  • Stainless Steel 321 Welded Tubing
  • Stainless Steel 321H ERW Pipes
  • Stainless Steel UNS S32100 Pipe
  • Stainless Steel 321 EFW Pipes
  • ASTM A312 SS 321H Welded Pipes
  • Stainless Steel 1.4541 Pipes
  • SS 321H Rectangular Pipes
  • Stainless Steel 1.4878 Pipes in Mumbai
  • SS 321H Square Pipes
  • Stainless Steel 321 Tubing Supplier in Mumbai
  • SS 321 Pipes Manufacturer in India
  • Stainless Steel 321 Welded Tubes
  • SS 321H ERW Tubes Stockholder in India
  • SS UNS S32109 Pipes
  • SS 1.4878 Seamless Tubes
  • SS 321 Rectangular Pipes
  • SS 321H Square Pipes
  • Stainless Steel S32109 Seamless Pipe in India
  • SS 321 Austenitic Pipe Stockist in Mumbai, India
  • Stainless Steel 321H Hollow Pipes
  • 321 SS Seamless Tubes
  • Stainless Steel 321H Industrial Pipes
  • SS 321H Rectangular Tubing
  • Stainless Steel 321 Square Tubing
Application Industry

We have huge experience of supplying to all major industries across the world. These Pipes & Tubes is use in various industries like : Petrochemical, Pulp And Paper Co, Oil and Gas, Chemical Industry, Food Processing Industry, Plumbing, Water Supply Systems, Power Plant, General Purpose Applications, Fabrication Industry etc

Central/South America, North America, Asia, Mid East/Africa, Eastern Europe, UAE

Sri Lanka, Bahrain, Russia, Egypt, Portugal, Turkey, Spain, Singapore, Brazil, Thailand, Chile, Malaysia, Venezuela, Indonesia, Costa Rica, Poland, USA, U.A.E, Italy, Oman, Canada, Saudi Arabia, Angola, Qatar