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ASTM A312 TP321H Stainless Steel Welded Pipes

321H Stainless Steel Pipes, ASTM A312 TP321H Stainless Steel Pipes, ASTM A312 Grade 321H Stainless Steel Pipes, ASME SA312 TP321H Stainless Steel Seamless Pipes, 321H SS Pipes, UNS S32109.

Manufacturing Cold Draw and Hot Finish ASTM A312 TP32H Stainless Steel Pipes in India.

Savoy Piping Inc., we carry a full inventory of ASTM A312 TP321H Stainless Steel Welded Pipe and Supply ASTM A312 TP321H Stainless Steel Welded Pipe austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications.

We Supply ASTM A312 TP321H Stainless Steel Welded Pipes in Grades in Specification ASME SA / ASTM A269, A312, A213 and along with other Grades 202, 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, 254 SMO, 6MO, 6 MOLY, UNS S31254 etc. The grade indicates the testing methods required for a given application.

Savoy Piping Inc. specializes in ASTM A312 TP321H Stainless Steel Welded Pipe with years of Experience in Manufacturing ASTM A312 TP321H Stainless Steel Welded Pipe. we offer high quality, lower cost but the best service. As a result to that our ASTM A312 TP321H Stainless Steel Welded Pipes  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.

 stainless steel Pipes ,s tainless steel tubes, Stainless Steel Pipes and Tubes, Stainless Steel Seamless Pipes, Stainless Steel Welded Pipes, stainless steel erw Pipes, stainless piping, stainless steel pipe and Tubes 202, 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 317L, 321, 321H, 347, 347H, 904L etc., ASTM A312, ASTM A213, ASME SA312, ASME SA213

ASTM A312 TP321H Stainless Steel Welded Pipes Manufacturer, Stockholder and Supplier

At the start of the welded pipe manufacturing process so called slabs or billets are cast in a steel mill. Dependent on the external dimensions and wall thickness there are different methods of producing welded Pipes and Tubes: Electric Resistance Welding (ERW), Fusion Welding (EFW) and Double Submerged Arc Welding (DSAW). In the ERW and EFW manufacturing process welded Pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible. With a heat treating at the end of the manufacturing process the weld zone of the steel pipe can be made less visible. Due to the weld seam lower operating pressures are stated in accordance with ASME compared to Seamless Pipes . In general welded Tubes possess tighter dimensional tolerances than Seamless Pipes and are less costly if produced in same quantities

ERW pipes means Electric Resistance Welded Pipe. A plate rolled to become a pipe and welded using Electric Resistance Welding process. Usully for for high diameter. (cheapest process avaiable) ERW Pipes means Electric Resistance Welded Pipes . ERW steel Pipes and Tubes are used in various engineering purposes, fencing, scaffolding, line Pipes etc. ERW steel Pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished Pipes . 

Grades 321 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.

Grade 321H 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.

ASTM A312 TP321H Stainless Steel Welded Pipes Range

ASTM A312 TP321H Stainless Steel Welded Pipes Specification ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312
ASTM A312 TP321H Stainless Steel Welded Pipes 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.
ASTM A312 TP321H Stainless Steel Welded Pipes Type Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish
ASTM A312 TP321 Stainless Steel Seamless Pipes Outer Diameter Size Seamless - 1/2" NB TO 18" NB
Welded / ERW- 1" NB TO 16" NB
EFW - 8" NB TO 110" NB
ASTM A312 TP321H Stainless Steel Welded Pipes Wall Thickness Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness)
ASTM A312 TP321H Stainless Steel Welded Pipes Length 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.
ASTM A312 TP321H Stainless Steel Welded Pipes Ends Plain Ends / Beveled Ends
ASTM A312 TP321H Stainless Steel Welded Pipes Delivery Conditions As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw
ASTM A312 TP321 Stainless Steel Seamless Pipes Coating Electropolish, Mechanical Polish, Satin Finish, Passivated
ASTM A312 TP321H Stainless Steel Welded Pipes 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
ASTM A312 TP321H Stainless Steel Welded Pipes Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME
ASTM A312 TP321H Stainless Steel Welded Pipes Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment / Annealed / Bright Annealed
ASTM A312 TP321H Stainless Steel Welded Pipes Packaging Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
ASTM A312 TP321 Stainless Steel Seamless Pipes 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
ASTM A312 TP321H Stainless Steel Welded Pipes 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 ASTM A312 TP321H Stainless Steel Welded Pipes

The chemical composition of grade 321H 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 ASTM A312 TP321H Stainless Steel Welded Pipes

The Mechanical Properties of grade 321H 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.

ASTM A312 TP321H Stainless Steel Welded Pipes Physical Properties

Physical properties of 321H 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 ASTM A312 TP321H Stainless Steel Welded Pipes

Grade specifications for 321H 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.

ASTM A312 TP321H Stainless Steel Welded Pipes Apllication

The grade 321H 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.

ASTM A312 TP321H Stainless Steel Welded Pipes Nominal Bore Sizes

  • 1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1-1/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 1-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 2-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 3-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 5" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 6" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 8" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 10" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 12" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 14" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 16" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
  • 18" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS

Supplying ASTM A312 TP321H Stainless Steel Welded Pipes to Countries -

We export ASTM A312 TP321H Stainless Steel Welded Pipes 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

Savoy Piping Inc. is a well known worldwide Exporter of ASTM A312 TP321H Stainless Steel Welded Pipes , Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deals in ASTM A312 TP321H Stainless Steel Welded Pipe in India and Overseas, offering a wide range of ASTM A312 TP321H Stainless Steel Welded Pipes .