321 Stainless Steel Pipes and Tubes_niobium alloy,stephens pipe and steel

321 Stainless Steel Pipes and Tubes

321 Stainless Steel Pipes, 321 Stainless Steel Tubes, 321 Stainless Steel Seamless Pipe & Tubes, 321 Stainless Steel Welded Pipes and Tubes, 321 Stainless Steel Tubing, UNS S32100 Pipes and Tubes.

Manufacturing 321 Stainless Steel Pipes and Tubes in Form of Seamless / Welded / ERW / EFW in India.

, we carry a full inventory of and Supply austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications

We Supply 321 Stainless Steel Pipes and Tubes in Grades in Specification ASME SA /ASTM A269, A312, A213 and Grades , , , , , , , , , , , , , , , , , , , , , etc. The grade indicates the testing methods required for a given application.

HSH specializes in with years of Experience in Manufacturing . we offer high quality, lower cost but the best service. As a result to that our 321 Stainless Steel Pipes and Tubes export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.

321 Stainless Steel Pipes and Tubes Manufacturer, Stockholder And Supplier

 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

 is a modification of 321 with a higher carbon content, to provide improved high temperature strength.

A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred – the niobium performs the same carbide stabilisation task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.

Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500°C.

321 Stainless Steel Pipes and Tubes range

321 Stainless Steel Pipe & Tubes Specification ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312
321 Stainless Steel Pipe & Tubes Grades 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC.
321 Stainless Steel Pipe & Tubes Type Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish
321 Stainless Steel Pipe & Tubes Outer Diameter Size Seamless – 1/2″ NB TO 18″ NB
Welded / ERW- 1″ NB TO 16″ NB
EFW – 8″ NB TO 110″ NB
321 Stainless Steel Pipe & Tubes Wall Thickness Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness)
321 Stainless Steel Pipe & Tubes Length 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.
321 Stainless Steel Pipe & Tubes Ends Plain Ends / Beveled Ends
321 Stainless Steel Pipe & Tubes Delivery Conditions As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw
321 Stainless Steel Pipe & Tubes Coating Electropolish, Mechanical Polish, Satin Finish, Passivated
321 Stainless Steel Pipe & Tubes Other Testing Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc
321 Stainless Steel Pipe & Tubes Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards includingASTM And ASME
321 Stainless Steel Pipe & Tubes Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
321 Stainless Steel Pipe & Tubes Packaging Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
321 Stainless Steel Pipe & Tubes Shipment & Transportation By Road – Truck / Train, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes
321 Stainless Steel Pipe & Tubes Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

Chemical Composition of 321 Stainless Steel Pipes and Tubes

The Chemical Composition of grade 321 Stainless Steel is outlined in the following tableTypical compositional ranges for grade 321 stainless steels Pipes

Grade C Mn Si P S Cr Mo Ni N Other
321 min. 
max
– 
0.08
2.00 0.75 0.045 0.030 17.0 
19.0
9.0 
12.0
0.10 Ti=5(C+N) 
0.70
321H min. 
max
0.04 
0.10
2.00 0.75 0.045 0.030 17.0 
19.0
9.0 
12.0
Ti=4(C+N) 
0.70

Mechanical Properties of 321 Stainless Steel Pipes and Tubes

The Mechanical Properties of grade 321 Stainless Steel are displayed in the following table.

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217
321H 515 205 40 95 217
321H also has a requirement for a grain size of ASTM No 7 or coarser.

321 Stainless Steel Pipes and Tubes Physical Properties

Physical properties of 321 grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

grade Specification Comparison for 321 Stainless Steel Pipes and Tubes

Grade Specifications for 321 grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321
321H S32109 321S51 1.4878 X10CrNiTi18-10 SUS 321H
347 S34700 347S31 58G 1.4550 X6CrNiNb18-10 2338 SUS 347
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

321 Stainless Steel Pipes and Tubes Applications

The grade 321 steel can be made into plates, sheets, and coils to be used in the following:

  • Food preparation equipment particularly in chloride environments.
  • Laboratory benches & equipment.
  • Coastal architectural panelling, railings & trim.
  • Boat fittings.
  • Chemical containers, including for transport.
  • Heat Exchangers.
  • Woven or welded screens for mining, quarrying & water filtration.
  • Threaded fasteners.
  • Springs.

Supplying 321 Stainless Steel Pipes and Tubes to Countries –

We export 321 Stainless Steel Pipes and Tubes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

HSH is a well known worldwide Exporter of 321 Stainless Steel Pipes and Tubes, HSH is committed to provide each and every customer with the highest standard of customer service. We deals in in India and Overseas, offering a wide range of 321 Stainless Steel Pipes and Tubes

HSH stocks a broad range of metal materials, including aluminum, steel, stainless steel, copper and brass, and specialty metals. Also, we also sell cast fittings, cast Iron, forged fittings, cutting tools, flanges, ect. If you have any needs about our products, you can contact us.
sales@https://www.metal-pipe.com

Shopping Cart