Stainless steel 321 pipe

Stainless steel 321 pipe

We are biggest ASTM A312 TP321 welded pipe supplier in India


Nitron Alloys Overseas is the trusted manufacturer of this ASTM A 312 Grade . TP 321 Seamless Pipe. These Pipes are manufactured using pure quality titanium stabilized alloy. We are fabricating these Seamless Pipes in the manner to resist intergranular corrosion, especially at high temperatures. At the high temperatures, these pipes are used more conventionally. These Pipes are having higher creep strength as well as stress rupture properties.


It also has excellent toughness properties at lower temperatures as well. These TP 321 Seamless Pipes are the most austenitic stainless steel pipes which can be readily welded by the conventionally used welding and fabrication techniques. These Pipes are having titanium that offers excellent corrosion resistance. Annealing is also available as a means of treating this material for extra corrosion resistance.


Nitron Alloys Overseas is one of the best industries that are globally involved in manufacturing, exporting, and supplying a high quality range of Stainless steel 321 pipe. We are making these Pipes available in different materials, shapes, types, sizes, lengths. Also, we are providing these Seamless Pipes to our valuable buyers at custom made specifications according to the needs and requirements they are having for the applications in various sectors.


We, Nitron Alloys Overseas, are manufacturing these A 312 Grade. TP 321 Rectangular Pipes at our high-tech manufacturing unit. We are making these Pipes with the premium quality of raw materials that are specially selected and chosen by our professionals. We are having a team of professionals. Under the guidelines of our professionals, we are manufacturing these ASTM Pipes in bulk amounts. We are also using the latest tools and techniques to fabricate these Pipes at top-notch quality. We are always referring to use the national and international standards and specifications to maintain the quality standard. At our automated testing unit, we are conducting several destructive and non-destructive tests on the finished product. We are packing these Seamless Pipes with suitable material and performing smooth and damage-free delivery within the decided time span. We are delivering ASME SA 312 Grade TP 321 Seamless Pipes at the doorstep of our clients.


Stainless steel 321 pipe

Stainless steel 321 pipe

ASTM A312 TP321 pipe

ASTM A312 TP321 pipe

321 stainless steel pipe

321 stainless steel pipe

Stainless steel 321 pipe specification

Sizes Standard Schedule

OD: 0.5" - 24"
WT:6mm-30mm

ASTM A312 / ASME SA312
  • SCH 5 to SCH XXS
Payment terms Ends Length
  • L/C
  • T/T
  • Beveled
  • Plain
  • Straight cut
  • Single Random
  • Double Random
  • Cut length
Dimensional standard Surface Type
  • ASME B36.19
  • ASME B36.10
  • 2B
  • Mill finish
  • 2D
  • BA
  • Seamless
  • ERW
  • Welded
Value Added Services Testing Provided By Supplier Delivery Conditions
  • Draw
  • Sand Blasting
  • Machining
  • Galavanizing
  • Shot Blasting
  • Heat Treatment
  • Expansion
  • NACE TM0284
  • IBR
  • HIC TEST
  • NACE TM0177
  • H2 SERVICE
  • NACE MR0175
  • SSC TEST
  • Cold Drawn
  • Normalized and Tempered
  • Normalizing Rolled
  • Quenched and Tempered
  • Normalizing Formed
  • Hot Rolled
Cutting techniques Form Stainless steel 321 pipe Packaging
  • Burrless Cuts
  • Water-Jet
  • Tapping
  • Sawing
  • Round
  • Square
  • Rectangular
  • Loose
  • Plastic Cloth Wraps
  • Wooden box-a
  • Wooden Pallet
  • Bundle
International standards Marking on Stainless steel 321 pipe Origin
  • EN
  • BS - UNI
  • ASTM/ASME
  • GOST
  • ISO
  • DIN -NF A
  • JIS
  • GB 5310
  • Length
  • Heat No.
  • Standard
  • Thickness
  • OD name
  • Grade
  • Manufacturer/Supplier
  • Ukraine
  • Japanese
  • European
  • Indian
  • Korean
  • US
  • Russian

Various types of ASTM A312 TP321 pipe

AISI 321 Hot Finished Pipe

AISI 321 Hot Finished Pipe

UNS S32100 Thin Wall Pipe

UNS S32100 Thin Wall Pipe

ASTM A312 TP321 Welded Pipe

ASTM A312 TP321 Welded Pipe

Alloy 321 Seamless Pipe

Alloy 321 Seamless Pipe

WNR 1.4541High Pressure Pipe

WNR 1.4541 High Pressure Pipe

321 SS Rectangular Pipe

321 SS Rectangular Pipe

SA312 TP321 Round Pipe

SA312 TP321 Round Pipe

SUS 321 Cold Drawn Pipe

SUS 321 Cold Drawn Pipe

321 stainless steel Polished Pipe

321 stainless steel Polished Pipe

We are leading stockist of AISI 321 hot finished pipe, SS 321 erw pipe remains resistant to corrosion even when submerged in water

UNS S32100 thin wall pipe corrosion resistence

Corrosion resistence resists oxidation up to 1500˚F

UNS S32100 thin wall pipe has a hardness of 217 HB, We are exporting 321 SS rectangular pipe worldwide

ASTM A312 TP321 welded pipe chemical composition

Grade C S Mn Ni Si N Cr P Ti
SS 321 0.08 max 0.030 max 2.0 max 9.00 - 12.00 1.0 max 0.10 max 17.00 - 19.00 0.045 max 5(C+N) - 0.70 max

Alloy 321 seamless pipe mechanical properties

Tensile Strength Melting Point Elongation Yield Strength (0.2%Offset)
Psi - 75000 , MPa - 515 1457 °C (2650 °F) 35 % Psi - 30000 , MPa - 205

WNR 1.4541 high pressure pipe equivalent grade

STANDARD UNS WNR EN JIS
SS 321 S32100 1.4541 X6CrNiTi18-10 SUS 321

321 SS rectangular pipe physical properties

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

SA312 TP321 round pipe dimensions

NPS WALL THICKNESS (IN) INSIDE DIAMETER (IN) OUTSIDE DIAMETER (IN) WEIGHT (LB/FT)
1/8 0.095" 0.215" 0.405" 0.32 lb/ft
1/4 0.119" 0.302" 0.540" 0.54 lb/ft
3/8 0.126" 0.423" 0.675" 0.74 lb/ft
1/2 0.147" 0.546" 0.840" 1.09 lb/ft
3/4 0.154" 0.742" 1.050" 1.47 lb/ft
1 0.179" 0.957" 1.315" 2.17 lb/ft
1-1/4 0.191" 1.278" 1.660" 3.00 lb/ft
1-1/2 0.200" 1.500" 1.900" 3.63 lb/ft
2 0.218" 1.939" 2.375" 5.02 lb/ft
2-1/2 0.276" 2.323" 2.875" 7.66 lb/ft
3 0.300" 2.900" 3.500" 10.25 lb/ft
3-1/2 0.318" 3.364" 4.000" 12.50 lb/ft
4 0.337" 3.826" 4.500" 14.98 lb/ft
5 0.375" 4.813" 5.563" 20.78 lb/ft
6 0.432" 5.761" 6.625" 28.57 lb/ft
8 0.500" 7.625" 8.625" 43.39 lb/ft
10 0.500" 9.750" 10.750" 54.74 lb/ft
12 0.500" 11.750" 12.75" 65.42 lb/ft
14 0.500" 13.000" 14.000" 72.09 lb/ft
16 0.500" 15.000" 16.000" 82.77 lb/ft
18 0.500" 17.000" 18.000" 93.45 lb/ft
20 0.500" 19.000" 20.000" 104.10 lb/ft
24 0.500" 23.000" 24.000" 125.50 lb/ft

Application of 321 stainless steel polished pipe

  • Fertilizers and pesticides
  • Water treatment plants
  • Breweries
  • Textile operations
  • Food processing
  • Chemical applications
  • Oil and gas processing
  • Construction
Refer sizes and dimensons of Alloy 321 seamless pipe, Check latest price list of ASTM A312 TP321 pipe in Mumbai

321 stainless steel pipe price list

Price list of Stainless steel 321 pipe SS 321 pipe Price in USD ASTM A312 TP321 pipe Price in UAE Dirham
ASTM A312 TP321 SEAMLESS HOT FINISHED PIPES - OD.21.3X2.60X5000 US $2.57 per kg 9.44 UAE Dirham per kg
321 STAINLESS STEEL SEAMLESS COLD FINISH PIPES US $3.26 per kg 11.96 UAE Dirham per kg

Testings of Stainless steel 321 pipe

  • Mechanical Testing
  • Visual Inspection Reports
  • Hydrostatic Test
  • Ultrasonic testing
  • Eddy-Current testing
  • Non Destructive Test
  • PMI Test Reports
We stock WNR 1.4541 high pressure pipe in wide range of sizes, We deliver SA312 TP321 round pipe on time in damage-free conditions

Size chart of Alloy 321 seamless pipe

NPS Outside diameter (inch) 10 80 40
1/8" .405 .049 .095 .068
1/4" .540 .065 .119 .088
3/8" .675 .065 .126 .091
1/2" .840 .083 .147 .109
3/4" 1.050 .083 .154 .113
1" 1.315 .109 .179 .133
1 1/4" 1.660 .109 .191 .140
1 1/2" 1.900 .109 .200 .145
2" 2.375 .109 .218 .154
2 1/2" 2.875 .120 .276 .203
3" 3.500 .120 .300 .216
3 1/2" 4.000 .120 .318 .226
4" 4.500 .120 .337 .237
4 1/2" 5.000
5" 5.563 .134 .375 .258
6" 6.625 .134 .432 .280
7" 7.625
8" 8.625 .148 .500 .322
9" 9.625
10" 10.750 .165 .593 .365
11" 11.750
12" 12.750 .180 .687 .406
14" 14.000 .250 .750 .437
16" 16.000 .250 .843 .500
18" 18.000 .250 .937 .562