ASTM A312 TP 321 Round Pipe and 321 Exhaust Tubing supplier in India
The 321 grade can be defined as the stabilized stainless steel that comes with many advantages. The Stainless Steel 321 Pipe/ Tube has excellent intergranular corrosion resistance properties, even in the chromium carbide precipitation temperature range of 800 to 1500 degrees F. The 321 stainless steel material is equipped with some great mechanical properties like high strength and scaling resistance. The Stainless Steel 321 Pipe is known for its phase stability and aqueous corrosion-resisting nature. They are perfect for applications up to the temperature range of 900 degrees C. We are one of the top 321 Stainless Steel Tubing suppliers in India, who are known for manufacturing high-quality products and giving timely deliveries.
The Stainless Steel 321 Tube contains stabilized austenitic stainless steel, similar to the grade 304. However, they have additional titanium and almost five times the carbon content. Due to the unique composition, the 321 Exhaust Tubing can reduce chromium carbide precipitation from welding or high-temperature exposures. The Cres 321 Tubing is also resistant to sensitization, making it perfect for applications in places where 304 ss will become sensitized. Being one of the top 321 Tubing suppliers, we can suggest the best products that would suit the requirements of our clients.
We are one of the best 321 Stainless Steel Pipe suppliers and stockists in the country. We offer all-around customization of the products in terms of dimensions, shapes, and finishes- as specified by our esteemed clients. We offer a wide range of products that would suit the requirements of our customers. Our 321 Stainless Steel Seamless Tubing are shipped throughout the country and worldwide. We follow the standard practices while shipping SS 321 Seamless Pipe not to get damaged during the transportation process. We use good quality wooden boxes and pallets to pack 321 SS Welded Pipe to be delivered to the customers' doorstep on time and safely.
There are various benefits of using ASTM A312 TP 321 Round Pipe. Due to the addition of titanium in the alloy, this material is stabilized. It means it offers higher corrosion resistance and lowers the chances of chromium carbide precipitation. The 321 UNS S32100 ERW Pipe also comes with higher fatigue and tensile strength when compared to other standard stainless steel grades. The temperature reduction factor of w.nr. 1.4541 Square Pipe is also higher. It can also effectively resist stress corrosion cracking due to polythionic acids. It is also to be noted that SA 312 TP 321 Rectangular Pipe can easily be welded using common techniques. Also, annealing the material would increase its ductility. However, the AISI 321 Schedule 40 Pipe does not get hard by heat treating, and thus higher properties can only be obtained through cold reduction.
Due to all the unique mechanical properties SS grade 1.4541 Polished Pipe possesses, it is used in various industries. You would find the application of 1.4541 SS 321 Seamless Tube in expansion joints, thermal oxidizers, food processing equipment, etc.

Table of contents
- Stainless Steel 321 Pipe Pipe Specification Chart
- SS 321 Pipe Manufacturing Types
- Stainless Steel 321 Pipe Price List
- ASTM A312 TP 321 Pipe Types
- 321 Stainless Steel Seamless Pipe Types
- ASME SA 312 Grade 321 ERW Pipe Types
- 1.4541 Stainless Steel Pipe for sale
- European Standards of Stainless Steel 321 Tube
- SS 321 Pipe Manufacturing Standards
- Stainless Steel 321 Pipe OD Tolerance
- SS 321 Pipe Wall Thickness Tolerance Chart
- Stainless Steel 321 Pipe Wall Thickness
- SS 321 Pipe Dimensions
- ASTM A312 TP 321 Pipe Ends
- 321 Stainless Steel Pipe Weight
- 1.4541 Stainless Steel Pipe Equivalent Material
- 321 SS Tube ready stock
- UNS S32100 Heat Exchanger Tube Types
- SA 312 TP 321 Pipe Chemical Composition
- ASTM A312 Gr TP 321 Pipe Mechanical Properties
- Stainless Steel 321 Pipe Yield Strength
- ASTM A312 TP 321 Pipe Temperature
- ASME SA 312 Grade 321 Pipe Roughness
- 1.4541 Stainless Steel Pipe and Tube Test Requirements
- 321 SS Pipe Different manufacturing processes
- UNS S32100 Pipe and Tube Marking
- Stainless Steel 321 Tube Pressure Rating
- 321 Pipe and Tube Welding
Custom cut & polished 321 Tubing supplier in Mumbai, Supply Thin wall size 321 Stainless Steel Pipe from stock



Stainless Steel 321 Pipe Pipe Specification Chart
Trade Name | Stainless Steel 321 Pipe |
Stainless Steel 321 Seamless Pipe (OD) | 21.3 - 660mm ( Inch 1/2” – 26”) |
SS 321 SAW | 16" - 100" NB |
ASTM A312 TP 321 ERW and HFW | 1/2” NB – 24” NB |
321 Stainless Steel LSAW / DSAW | 16’OD TO 54" OD (8 MM TO 50 MM THK) |
ASME SA 312 Grade 321 Pipe end | BLE -Bevel large end, BSE -Bevel small end, BBE -Bevel both ends, TOE -Treaded One End, PBE -Plain Both Ends, BE -Beveled end, BOE-Beveled One End, TBE -Treaded Both Ends, POE -Plain One End |
1.4541 Stainless Steel Pipe Length | DRL, 20FT, 40FT, SRL, 6000mm, 2000mm, 12000mm, Double Random Length (DRL), 3000mm, Single Random Length (SRL), Custom Length |
321 Wall Thickness | SCH160, SCH-10S, SCH-80, SCH-80S, SCH-XS, SCH-5, SCH-STD, SCH-XXS, SCH-10, SCH-40, SCH-5S, SCH-40S |
Available shape of 321 SS Pipe/ Tube |
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Marking of Stainless Steel 321 Pipe suppliers |
Stainless Steel 321 Seamless Pipe Marking Sample: ASME B36.19/ B36.19m ASTM A312 TP321 12" NB SCH 40S PIPE SEAMLESS HEAT NO. XXXX |
Surface Finish & Delivery Condition | Mirror, 4K, Annealed & Pickled, Polish, HL, NO.4, NO.1, Bright Annealed, 8K, Polished, 2B, Cold Drawn, BA |
Different methods used by Stainless Steel 321 Pipe manufacturers' |
Welded, 100% X Ray/ Gamma Ray Welded, Electro Fusion Seam Welded (EFSW), Cold Drawn Seamless (CDS), Longitudinally Submerged Arc Welded (LSAW), Electric Resistance Welded (ERW), CDW, Horizontal Submerged Arc Welded (HSAW), Fabricated, Extrusion, Hot Finish Seamless (HFS), Seamless, Submerged Arc Welded (SAW) |
Approvals | BP, ISO 17025 for Laboratories, PED 97/23/EC, Saudi Aramco, L&T, IBR, Merkblatt W0, Shell, EIL, KNPC, HAF 604, AD2000, ONGC, NORSOK M-650, PED |
Origin of SS 321 Pipe material | Korean, American, Indian, European, Asian, Ukraine, Russian, Chinese, Latin-American, UK, Gulf, Japanese, Japan, USA, Africa |
Certificate | NACE, EN-10204:3.2, IBR, SSC, HIC, EN-10204:3.1, Sour-Service |
Equivalent Standards | AWWA, EN, DIN, GB, SAE, AISI, SS, BS, JIS, ASTM, KS, ANSI, IS, NFA, UNI, GOST, CSA, API, ISO |
Test | Surface Roughness Test, TM0177, Hydro test, HIC- Hydrogen-induced Cracking, Chemical, Tensile, Flux Leakage examination or Magnetic Flaw detection, Fine Grain, Radiography, IGC- Intergranular Corrosion Test, Hardness, Hardness Test, Macro, Eddy current, TM0284, Metallurgical & Stereo Microscopy, Ultrasonic Test, Stress , Positive Material Identification (PMI), Salt Spray Test to test Phosphating, Impact, Creep, Non Destructive Testing , NACE MR0175, Mechanical, Ferrite, Charpy V-Notch Test, Bend TestBend test / Guided Bend, Ultrasonic, SSC- Sulfide Stress Corrosion Cracking, H2 SERVICE, Straightness, Charpy V Impact Test, Micro, Burst Test, IBR |
Additional Services and Facility | Polishing, Laser/ Water Jet Cutting, Threading, Sawing, Beveling, Cutting, Tapping |
Material Test Certificate (MTC) provided by Stainless Steel 321 Pipe suppliers | ISO 9001:2005, EIL, PED, Ultrasonic Testing (UT), Radiographic Testing (RT), NDE, ISO 14001:2015, IBR, EN 10204 3.1 |
Dual certified supplier | Dual certified SS 321 Pipe suppliers in India, accordance to certify ASTM A312 TP321 and ASME SA 312 TP321 American specifications |
Stockist and distributor of |
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Cres 321 Tubing and SS 321 Seamless Pipe stockist & supplier in India, Get exact sizing of AISI 321 Schedule 40 Pipe & w.nr. 1.4541 Square Pipe
Buy Stainless Steel 321 Pipe in Germany, Qatar, Saudi Arabia, UAE, Singapore, Philippines, USA, Indonesia, Malaysia, Vietnam, UK, Australia, Korea, Nigeria at dealer price, ask for a free sample now!
SS 321 Pipe Manufacturing Types






Many Stainless Steel 321 Pipe suppliers, traders, stockists, retailers, distributors, exporters, wholesalers, importers, dealers, stockholders choose Trident Steel for their regular requirements and re sale in their own countries for higher margins, so buy directly from Trident to save your cost, contact us for a quick and free quote !!!
Stainless Steel 321 Pipe Price List
Grit 120 - 600 finish SS grade 1.4541 Polished Pipe and 321 Stainless Steel Seamless Tubing in specific gauge
ASTM A312 TP 321 Pipe Types















321 Stainless Steel Seamless Pipe Types
Stockist & supplier of 321 SS Welded Pipe and 321 Stainless Steel Tubing in Mumbai, view 321 UNS S32100 ERW Pipe properties and price list



ASME SA 312 Grade 321 ERW Pipe Types



1.4541 Stainless Steel Pipe for sale
SS 321 Rectangular Pipes | Stainless Steel 321 CDW Pipes |
321 Stainless Steel Hexagonal Pipes | ASTM A312 TP 321 SMLS Pipes |
SS 321 High pressure Pipes | ASME SA 312 Grade 321 Hollow Pipes |
ASTM A312 TP 321 Schedule 5S Pipes | 321 Stainless Steel Square Pipes |
Welded ASTM A312 Gr TP 321 Cold Drawn Pipes | Stainless Steel 321 Schedule 40 Pipes |
Stainless Steel 321 Welded Pipes | Seamless 321 Stainless Steel Pipes |
SS 321 EFW Pipes | ASTM A312 TP 321 ERW Pipes |
Stainless Steel 321 Exhaust Pipes | ASTM A312 TP 321 Polished Pipes |
Small diameter SS 321 Pipes | SS 321 Capillary Pipes |
ASTM A312 TP 321 Annealed Pipes | SA 312 TP 321 Clad Pipes |
Cold Drawn 321 Stainless Steel Seamless Pipes | SS grade 1.4541 Rectangle Pipes |
Schedule 40S SS 321 Pipes | Stainless Steel 321 Hot Finished Pipes |
321 Stainless Steel Seam Welded Pipes | Cold Drawn ASTM A312 TP 321 Pipes |
1.4541 Stainless Steel Bush Hex Pipes | ASME SA 312 Grade 321 Overlay Pipes |
Thin Wall UNS S32100 Pipes | Thick Wall 321 SS Pipes |
High Temperature ASTM A312 Gr TP 321 Pipes | SA 312 TP 321 Cold Drawn Seamless Pipes |
UNS S32100 Beveled End Pipes | 321 SS Custom Pipes |
1.4541 Stainless Steel Fabricated Pipes | SA 312 TP 321 Round Pipes |
Stainless Steel 321 Electropolished Pipes | SS 321 Oval Pipes |
European Standards of Stainless Steel 321 Tube
Type | EUROPEAN STANDARDS |
---|---|
Stainless Steel 321 Precision Tube/ Pipe | EN 10216-5 |
SS 321 Welded Tube / Pipe | EN 10217-7 |
ASTM A312 TP 321 Welded Circular Tube/ Pipe | EN 10297-2 |
321 Stainless Steel Welded Tube / Pipe | EN 10296-2 |
Large Diameter ASME SA 312 Grade 321 Pipe/ Tube | EN 10216-7 |
SS 321 Pipe Manufacturing Standards
ASTM | ASME | Description |
---|---|---|
ASTM A312 TP321 | SA 312 TP321 | Stainless Steel 321 Seamless and straight-seam welded austenitic pipe |
ASTM A358 TP321 | SA 358 TP321 | SS 321 Electric fusion welded (EFW) austenitic pipe, up to 8 inch |
ASTM A213 TP321 | SA 213 TP321 | Seamless and Welded Austenitic Stainless Steel Tubing |
ASTM A249 TP321 | SA 249 TP321 | Welded Austenitic Steel Boiler, Superheater, Condenser and SS 321 Heat Exchanger, Tubes |
ASTM A269 TP321 | SA 269 TP321 | Seamless and Welded Austenitic Stainless Steel 321 Tubing |
ASTM A409 TP321 | SA 409 TP321 | 321 Welded Large Diameter Austenitic Steel Pipe |
ASTM A376 TP321 | SA 376 TP321 | High Temperature SS 321 Seamless Austenitic Steel Pipe |
ASTM A813 TP321 | SA 813 TP321 | Single-seam, single / double 321 welded austenitic pipe |
ASTM A814 TP321 | SA 814 TP321 | Cold-worked welded 321 austenitic pipe |
ASTM A554 TP321 | SA 554 TP321 | Stainless Steel 321 Welded Stainless Steel Mechanical Tubing and SS 321 Square Pipe |
ASTM A511 TP321 | SA 511 TP321 | Stainless Steel 321 Seamless Mechanical Tubing |
ASTM A632 TP321 | SA 632 TP321 | Small-Diameter Seamless and Welded Austenitic Stainless Steel 321 Tubing |
ASTM A688 TP321 | SA 688 TP321 | Austenitic Stainless Steel 321 Feedwater Heater Tubes, Welded |
ASTM A778 TP321 | SA 778 TP321 | Welded, Unannealed Austenitic Stainless Steel 321 Pipe/ Tube |
Stainless Steel 321 Pipe OD Tolerance

SS 321 Pipe Wall Thickness Tolerance Chart
Stainless Steel 321 Pipe Wall Thickness

SS 321 Pipe Dimensions
Standard-wall 321 Stainless Steel Pipe Dimensions, and Nominal Wall Thickness
ASTM A312 TP 321 Pipe Ends



321 Stainless Steel Pipe Weight

1.4541 Stainless Steel Pipe Equivalent Material
GRADE | WERKSTOFF NR./ DIN | EN | UNS | AISI 321 | JIS |
SS 321 | 1.4541 | X6CrNiTi18-10 | S32100 | Fe/Cr18/Ni 9/Ti | SUS 321 |
321 SS Tube ready stock
321 SS Heat exchanger Tube | 321 Stainless Steel Capillary Tubing |
Cold Drawn Stainless Steel 321 Seamless Tubing | ASME SA 312 Grade 321 ERW Tubing |
SS 321 Finned Tube | 1.4541 Stainless Steel Round Tubing |
Stainless Steel 321 Sanitary Tubing | UNS S32100 Square Tube |
ASTM A312 TP 321 Hollow Tube | Stainless Steel 321 Square Tubing |
High Pressure 1.4541 Stainless Steel Tube | ASTM A312 TP 321 ERW Tube |
Re Drawn 321 Stainless Steel Tubing | SS 321 Round Tube |
321 Stainless Steel Coil Tube | Stainless Steel 321 Seamless Tube |
ASME SA 312 Grade 321 Instrumentation Tubing | SS 321 Electropolish Tubing |
ASME SA 312 Grade 321 Coiled Tubing | ASTM A312 TP 321 Gas Tube |
Thin Wall SA 312 TP 321 Tubing | 1.4541 Stainless Steel Welded Tube |
1 inch SS 321 Tubing | SA 312 TP 321 Exhaust Tubing |
ASTM A312 TP 321 Tube Bends | ASTM A312 Gr TP 321 Rectangular Tubing |
321 Stainless Steel Dom Tubing | Stainless Steel 321 Electropolished Tube |
12mm ASME SA 312 Grade 321 Tubing | SS 321 Small Diameter Tubing |
1.4541 Stainless Steel Elliptical and Oval Tube | ASTM A312 TP 321 High Pressure Tube |
1.4541 Stainless Steel Triangle Tube | 321 Stainless Steel EFW Tubing |
UNS S32100 Condenser Tubing | ASME SA 312 Grade 321 Hydraulic Tubing |
ASTM A312 Gr TP 321 Polish Tubing | 321 SS Instrument Tubing |
UNS S32100 Heat Exchanger Tube Types



SA 312 TP 321 Pipe Chemical Composition
SS 321 Pipe Standard | Grade | ||||||||
---|---|---|---|---|---|---|---|---|---|
Chemical Composition % | |||||||||
C | Mn | Si | P | S | Cr | Ni | Ti | N | |
ASTM | AISI 321 - UNS S32100 | ||||||||
<00.08 | <2.0 | <00.75 | <00.045 | <00.03 | 17.0 - 19.0 | 9.0 - 12.0 | <00.7 | <00.1 | |
EN | 1.4541 - X6CrNiTi18-10 | ||||||||
<00.08 | <2.0 | <1.0 | <00.045 | <00.03 | 17.0 - 19.0 | 9.0 - 12.0 | <00.7 | - | |
NF | Z6CNT18-10 | ||||||||
<00.06 | <2.0 | <00.75 | <00.040 | <00.015 | 17.0 - 19.0 | 9.0 - 12.0 | <00.7 | <00.05 | |
LW | 1.4544 | ||||||||
<00.08 | <2.0 | <1.0 | <00.035 | <00.025 | 17.0 - 19.0 | 9.0 - 11.5 | <00.6 | - | |
PN | 0H18N10T | ||||||||
<00.08 | <2.0 | <00.80 | <00.045 | <00.030 | 17.0 - 19.0 | 9.0 - 11.0 | <00.7 | - | |
PN | 1H18N10T | ||||||||
<00.10 | <2.0 | <00.8 | <00.045 | <00.030 | 17.0 - 18.5 | 10.0 - 11.0 | <00.8 | - | |
PN | 1H18N12T | ||||||||
<00.10 | <2.0 | <00.8 | <00.045 | <00.030 | 17.0 - 19.0 | 11.0 - 13.0 | <00.8 | - | |
PN | 1H18N9T | ||||||||
<00.10 | <2.0 | <00.80 | <00.045 | <00.030 | 17.0 - 19.0 | 9.0 - 10.0 | <00.8 | - | |
GOST | 12Ch18N10T - 12Х18Н10Т | ||||||||
<00.12 | <2.0 | <00.8 | <00.035 | <00.020 | 17.0 - 19.0 | 9.0 - 11.0 | <00.8 | - | |
GOST | 06Ch18N10T - 06Х18Н10Т | ||||||||
0.03 - 0.06 | 1.0 - 2.0 | <00.8 | <00.035 | <00.020 | 17.0 - 19.0 | 10.0 - 11.0 | <00.7 | <00.05 | |
GOST | 10Ch18N10T - 10Х18Н10Т | ||||||||
<00.10 | 1.0 - 2.0 | <00.8 | <00.035 | <00.020 | 17.0 - 19.0 | 9.5 - 11.0 | <00.6 | - | |
GOST | 08Ch18N10T - 08Х18Н10Т | ||||||||
<00.08 | <2.0 | <00.8 | <00.035 | <00.020 | 17.0 - 19.0 | 9.0 - 11.0 | <00.7 | - |
ASTM A312 Gr TP 321 Pipe Mechanical Properties
Elements | 1.4541, X6CrNiTi18-10, 1.4544 |
---|---|
Tensile stress | Rm: 500 - 700N/mm2 |
Yield stress | Rp0, 2: >190N/mm2 |
Elongation | A: >40% |
Modulus of elasticity | E: 200 GPa |
Hardness | HB: <215 |
Thermal capacity | cp: 500 J * kg-1 * K-1 |
Thermal conductivity | λ: 15 W * m-1 * K-1 |
Resistance | Ω: 0.73 mkOhm*m |
Linear expansion coefficient | α: 16.0 * 10-6 K-1 |
Stainless Steel 321 Pipe Yield Strength
Elements | 1.4541, X6CrNiTi18-10, 1.4544 |
---|---|
Ultimate Tensile strength | Rm: 500 - 700N/mm2 |
Yield strength | Rp0, 2: >190N/mm2 |
ASTM A312 TP 321 Pipe Temperature
Properties (MPa) | Temperature Range | ||||||
---|---|---|---|---|---|---|---|
600 °C | 700 °C | 800°C | |||||
Creep limit | R1/1000 | 110 | 45 | 15 | |||
R1/10000 | 85 | 30 | 10 | ||||
Creep resistance | Rz/1000 | 200 | 88 | 30 | |||
Rz/10000 | 142 | 48 | 15 | ||||
Rz/100000 | 65 | 22 | 10 |
ASME SA 312 Grade 321 Pipe Roughness
1.4541 Stainless Steel Pipe and Tube Test Requirements

321 SS Pipe Different manufacturing processes

UNS S32100 Pipe and Tube Marking

Trident Steel also marks each bundle of Stainless Steel 321 Pipe with metal or plastic tag, where we provide the below details:

Stainless Steel 321 Tube Pressure Rating
Allowable working pressures of Stainless Steel 321 Pipe are given in MPa (megapascals)
Convert pressure rating in other units:
Required Unit/ to convert | to | multiply by |
---|---|---|
megapascals (MPa) | pounds/sq. inch (psi) | 145.0 |
megapascals (MPa) | kilopascals (kPa) | 1000 |
megapascals (MPa) | ksi | 0.145 |
megapascals (MPa) | bar | 10.00 |
megapascals (MPa) | kilograms/mm² (kgf/mm²) | 0.10197 |
321 Pipe and Tube Welding
