UNS S32109 ERW Pipe and SS 321H Seamless Pipe supplier in India, sizes according to ISO/ EN
The 321H grade stainless steel can be described as general-purpose stainless steel that has been stabilized against carbide precipitate. The Stainless Steel 321H Pipe/ Tube is designed to work efficiently with the carbide precipitation temperature range of 800 to 1500 degrees F. Addition of titanium in the Stainless Steel 1.4878 Tubing helps with this, and it also reduces the chances of intergranular corrosion. The Stainless Steel 321H Pipe remains non-magnetic when annealed, and it can be hardened by cold working. The 321H Stainless Steel Tube has a high carbon content, and hence it has enhanced creep resistance. It offers high strength above the temperature of 1000 degrees F. The carbon content of the SS 321H Seamless Pipe enables it to have dual certification.
We are one of the top suppliers of 321H SS Welded Pipe in India. Our products can be customized as per the preferences of our esteemed clients. We offer SS grade 1.4878 Polished Pipe, annealed and pickled, bright annealed, and cold drawn. The UNS S32109 ERW Pipe-we manufacture is supplied throughout the country and worldwide. We have a vast stock of various ASTM A312 TP 321H pipes, and we offer timely doorstep delivery. Before packaging, our 321H Stainless Steel Pipe goes through several tests to ensure its quality and safety. We follow all the industrial standards, and the whole manufacturing process takes place under the supervision of our expert team members.
The DIN 1.4878 Stainless Steel Round Pipe comes with multiple benefits like:
Due to the unique composition of the AISI 321H Schedule 40 Pipe has a wide range of applications in expansion joints, pharmaceutical productions, aerospace applications, food processing equipment, etc.

Table of contents
- Stainless Steel 321H Pipe Pipe Specification Chart
- ASTM A312 TP 321H Pipe Manufacturing Types
- Stainless Steel 321H Pipe Price List
- Stainless Steel 1.4878 Pipe Types
- 321H Stainless Steel Seamless Pipe Types
- SS 321H ERW Pipe Types
- UNS S32109 Pipe for sale
- European Standards of Stainless Steel 321H Tube
- SS 321H Pipe Manufacturing Standards
- Stainless Steel 321H Pipe OD Tolerance
- ASTM A312 TP 321H Pipe Wall Thickness Tolerance Chart
- Stainless Steel 321H Pipe Wall Thickness
- ASTM A312 TP 321H Pipe Dimensions
- Stainless Steel 1.4878 Pipe Ends
- 321H Stainless Steel Pipe Weight
- UNS S32109 Pipe Equivalent Material
- 321H SS Tube ready stock
- DIN 1.4878 Stainless Steel Heat Exchanger Tube Types
- SA 312 TP 321H Pipe Chemical Composition
- AISI 321H Stainless Steel Pipe Mechanical Properties
- Stainless Steel 321H Pipe Yield Strength
- Stainless Steel 1.4878 Pipe Temperature
- SS 321H Pipe Roughness
- UNS S32109 Pipe and Tube Test Requirements
- 321H SS Pipe Different manufacturing processes
- DIN 1.4878 Stainless Steel Pipe and Tube Marking
- Stainless Steel 321H Tube Pressure Rating
- 321H Pipe and Tube Welding
Stainless Steel 1.4878 Tubing and 321H SS Welded Pipe exporter in India, check ASTM A312 TP 321H Pipe Dimensions and weights per metre



Stainless Steel 321H Pipe Pipe Specification Chart
Trade Name | Stainless Steel 321H Pipe |
Stainless Steel 321H Seamless Pipe (OD) | 21.3 - 660mm ( Inch 1/2” – 26”) |
ASTM A312 TP 321H SAW | 16" - 100" NB |
Stainless Steel 1.4878 ERW and HFW | 1/2” NB – 24” NB |
321H Stainless Steel LSAW / DSAW | 16’OD TO 54" OD (8 MM TO 50 MM THK) |
SS 321H Pipe end | BOE-Beveled One End, POE -Plain One End, BLE -Bevel large end, PBE -Plain Both Ends, BBE -Bevel both ends, BE -Beveled end, BSE -Bevel small end, TOE -Treaded One End, TBE -Treaded Both Ends |
UNS S32109 Pipe Length | 3000mm, 2000mm, SRL, 6000mm, Double Random Length (DRL), 20FT, Custom Length, Single Random Length (SRL), DRL, 40FT, 12000mm |
321H Wall Thickness | SCH-STD, SCH160, SCH-10, SCH-10S, SCH-XXS, SCH-5, SCH-5S, SCH-80S, SCH-80, SCH-40S, SCH-40, SCH-XS |
Available shape of 321H SS Pipe/ Tube |
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Marking of Stainless Steel 321H Pipe suppliers |
Stainless Steel 321H Seamless Pipe Marking Sample: ASME B36.19/ B36.19m ASTM A312 TP321H 12" NB SCH 40S PIPE SEAMLESS HEAT NO. XXXX |
Surface Finish & Delivery Condition | Bright Annealed, NO.1, NO.4, 2B, Mirror, Polished, Cold Drawn, BA, Annealed & Pickled, HL, 8K, 4K, Polish |
Different methods used by Stainless Steel 321H Pipe manufacturers' |
Electric Resistance Welded (ERW), Horizontal Submerged Arc Welded (HSAW), CDW, Longitudinally Submerged Arc Welded (LSAW), Extrusion, Electro Fusion Seam Welded (EFSW), 100% X Ray/ Gamma Ray Welded, Submerged Arc Welded (SAW), Cold Drawn Seamless (CDS), Fabricated, Seamless, Hot Finish Seamless (HFS), Welded |
Approvals | ISO 17025 for Laboratories, Shell, PED 97/23/EC, L&T, Merkblatt W0, NORSOK M-650, IBR, BP, ONGC, HAF 604, KNPC, PED, Saudi Aramco, EIL, AD2000 |
Origin of ASTM A312 TP 321H Pipe material | USA, Japanese, European, American, Indian, Korean, Ukraine, Latin-American, Africa, UK, Japan, Gulf, Russian, Asian, Chinese |
Certificate | SSC, EN-10204:3.2, HIC, NACE, EN-10204:3.1, Sour-Service, IBR |
Equivalent Standards | CSA, AWWA, UNI, NFA, GOST, JIS, ISO, SAE, AISI, ASTM, EN, GB, KS, BS, SS, IS, API, DIN, ANSI |
Test | Ultrasonic Test, Creep, Ultrasonic, SSC- Sulfide Stress Corrosion Cracking, Surface Roughness Test, Fine Grain, Ferrite, Macro, Charpy V Impact Test, Stress , Chemical, HIC- Hydrogen-induced Cracking, Tensile, TM0177, Burst Test, Flux Leakage examination or Magnetic Flaw detection, Hydro test, Mechanical, NACE MR0175, Radiography, Hardness, Impact, TM0284, Bend TestBend test / Guided Bend, Salt Spray Test to test Phosphating, IGC- Intergranular Corrosion Test, Eddy current, Metallurgical & Stereo Microscopy, Micro, Hardness Test, H2 SERVICE, Non Destructive Testing , Positive Material Identification (PMI), Straightness, Charpy V-Notch Test, IBR |
Additional Services and Facility | Beveling, Threading, Sawing, Polishing, Laser/ Water Jet Cutting, Tapping, Cutting |
Material Test Certificate (MTC) provided by Stainless Steel 321H Pipe suppliers | EN 10204 3.1, IBR, Radiographic Testing (RT), ISO 9001:2005, Ultrasonic Testing (UT), PED, ISO 14001:2015, NDE, EIL |
Dual certified supplier | Dual certified SS 321H Pipe suppliers in India, accordance to certify ASTM A312 TP321H and ASME SA 312 TP321H American specifications |
Stockist and distributor of |
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Buy 321H Stainless Steel Tube in a variety of dimensions and SA 312 TP 321H Square Pipe in any Gauge and Thickness Range
Buy Stainless Steel 321H Pipe in USA, Vietnam, UAE, Qatar, Malaysia, Saudi Arabia, Indonesia, Germany, Nigeria, Singapore, Korea, UK, Philippines, Australia, at dealer price, ask for a free sample now!
ASTM A312 TP 321H Pipe Manufacturing Types






Many Stainless Steel 321H Pipe suppliers, dealers, retailers, stockists, stockholders, distributors, wholesalers, exporters, traders, importers 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 321H Pipe Price List
321H Stainless Steel Pipe and SS grade 1.4878 Polished Pipe stockist & supplier in Mumbai
Stainless Steel 1.4878 Pipe Types















321H Stainless Steel Seamless Pipe Types
Schedule 40 DIN 1.4878 Stainless Steel Round Pipe and ASTM A312 Gr.TP 321H Rectangular Pipe available in all standard and custom cuts



SS 321H ERW Pipe Types



UNS S32109 Pipe for sale
ASTM A312 TP 321H Rectangular Pipes | Stainless Steel 321H CDW Pipes |
321H Stainless Steel Hexagonal Pipes | Stainless Steel 1.4878 SMLS Pipes |
ASTM A312 TP 321H High pressure Pipes | SS 321H Hollow Pipes |
Stainless Steel 1.4878 Schedule 5S Pipes | 321H Stainless Steel Square Pipes |
Welded AISI 321H Stainless Steel Cold Drawn Pipes | Stainless Steel 321H Schedule 40 Pipes |
Stainless Steel 321H Welded Pipes | Seamless 321H Stainless Steel Pipes |
ASTM A312 TP 321H EFW Pipes | Stainless Steel 1.4878 ERW Pipes |
Stainless Steel 321H Exhaust Pipes | Stainless Steel 1.4878 Polished Pipes |
Small diameter ASTM A312 TP 321H Pipes | ASTM A312 TP 321H Capillary Pipes |
Stainless Steel 1.4878 Annealed Pipes | ASTM A312 TP 321H Clad Pipes |
Cold Drawn 321H Stainless Steel Seamless Pipes | SS grade 1.4878 Rectangle Pipes |
Schedule 40S ASTM A312 TP 321H Pipes | Stainless Steel 321H Hot Finished Pipes |
321H Stainless Steel Seam Welded Pipes | Cold Drawn Stainless Steel 1.4878 Pipes |
UNS S32109 Bush Hex Pipes | SS 321H Overlay Pipes |
Thin Wall DIN 1.4878 Stainless Steel Pipes | Thick Wall 321H SS Pipes |
High Temperature AISI 321H Stainless Steel Pipes | SA 312 TP 321H Cold Drawn Seamless Pipes |
DIN 1.4878 Stainless Steel Beveled End Pipes | 321H SS Custom Pipes |
UNS S32109 Fabricated Pipes | SA 312 TP 321H Round Pipes |
Stainless Steel 321H Electropolished Pipes | ASTM A312 TP 321H Oval Pipes |
European Standards of Stainless Steel 321H Tube
Type | EUROPEAN STANDARDS |
---|---|
Stainless Steel 321H Precision Tube/ Pipe | EN 10216-5 |
ASTM A312 TP 321H Welded Tube / Pipe | EN 10217-7 |
Stainless Steel 1.4878 Welded Circular Tube/ Pipe | EN 10297-2 |
321H Stainless Steel Welded Tube / Pipe | EN 10296-2 |
Large Diameter SS 321H Pipe/ Tube | EN 10216-7 |
SS 321H Pipe Manufacturing Standards
ASTM | ASME | Description |
---|---|---|
ASTM A312 TP321H | SA 312 TP321H | Stainless Steel 321H Seamless and straight-seam welded austenitic pipe |
ASTM A358 TP321H | SA 358 TP321H | ASTM A312 TP 321H Electric fusion welded (EFW) austenitic pipe, up to 8 inch |
ASTM A213 TP321H | SA 213 TP321H | Seamless and Welded Austenitic Stainless Steel Tubing |
ASTM A249 TP321H | SA 249 TP321H | Welded Austenitic Steel Boiler, Superheater, Condenser and SS 321H Heat Exchanger, Tubes |
ASTM A269 TP321H | SA 269 TP321H | Seamless and Welded Austenitic Stainless Steel 321H Tubing |
ASTM A409 TP321H | SA 409 TP321H | 321H Welded Large Diameter Austenitic Steel Pipe |
ASTM A376 TP321H | SA 376 TP321H | High Temperature SS 321H Seamless Austenitic Steel Pipe |
ASTM A813 TP321H | SA 813 TP321H | Single-seam, single / double 321H welded austenitic pipe |
ASTM A814 TP321H | SA 814 TP321H | Cold-worked welded 321H austenitic pipe |
ASTM A554 TP321H | SA 554 TP321H | Stainless Steel 321H Welded Stainless Steel Mechanical Tubing and ASTM A312 TP 321H Square Pipe |
ASTM A511 TP321H | SA 511 TP321H | Stainless Steel 321H Seamless Mechanical Tubing |
ASTM A632 TP321H | SA 632 TP321H | Small-Diameter Seamless and Welded Austenitic Stainless Steel 321H Tubing |
ASTM A688 TP321H | SA 688 TP321H | Austenitic Stainless Steel 321H Feedwater Heater Tubes, Welded |
ASTM A778 TP321H | SA 778 TP321H | Welded, Unannealed Austenitic Stainless Steel 321H Pipe/ Tube |
Stainless Steel 321H Pipe OD Tolerance

ASTM A312 TP 321H Pipe Wall Thickness Tolerance Chart
Stainless Steel 321H Pipe Wall Thickness

ASTM A312 TP 321H Pipe Dimensions
Standard-wall 321H Stainless Steel Pipe Dimensions, and Nominal Wall Thickness
Stainless Steel 1.4878 Pipe Ends



321H Stainless Steel Pipe Weight

UNS S32109 Pipe Equivalent Material
GRADE | WERKSTOFF NR./ DIN | EN | UNS | AISI 321 | JIS |
SS 321H | 1.4878 | X12CrNiTi18-9 | S32109 | - | SUS 321H |
321H SS Tube ready stock
ASTM A312 TP 321H Finned Tube | UNS S32109 Round Tubing |
Stainless Steel 1.4878 Hollow Tube | Stainless Steel 321H Square Tubing |
Re Drawn 321H Stainless Steel Tubing | ASTM A312 TP 321H Round Tube |
321H Stainless Steel Coil Tube | Stainless Steel 321H Seamless Tube |
SS 321H Instrumentation Tubing | ASTM A312 TP 321H Electropolish Tubing |
1 inch ASTM A312 TP 321H Tubing | SA 312 TP 321H Exhaust Tubing |
Cold Drawn Stainless Steel 321H Seamless Tubing | SS 321H ERW Tubing |
Stainless Steel 1.4878 Tube Bends | AISI 321H Stainless Steel Rectangular Tubing |
321H Stainless Steel Dom Tubing | Stainless Steel 321H Electropolished Tube |
12mm SS 321H Tubing | ASTM A312 TP 321H Small Diameter Tubing |
UNS S32109 Elliptical and Oval Tube | Stainless Steel 1.4878 High Pressure Tube |
UNS S32109 Triangle Tube | 321H Stainless Steel EFW Tubing |
High Pressure UNS S32109 Tube | Stainless Steel 1.4878 ERW Tube |
321H SS Heat exchanger Tube | 321H Stainless Steel Capillary Tubing |
DIN 1.4878 Stainless Steel Condenser Tubing | SS 321H Hydraulic Tubing |
Thin Wall SA 312 TP 321H Tubing | UNS S32109 Welded Tube |
AISI 321H Stainless Steel Polish Tubing | 321H SS Instrument Tubing |
Stainless Steel 321H Sanitary Tubing | DIN 1.4878 Stainless Steel Square Tube |
SS 321H Coiled Tubing | Stainless Steel 1.4878 Gas Tube |
DIN 1.4878 Stainless Steel Heat Exchanger Tube Types



SA 312 TP 321H Pipe Chemical Composition
SS 321H Pipe Standard | Grade | ||||||||
---|---|---|---|---|---|---|---|---|---|
Chemical Composition % | |||||||||
C | Mn | Si | P | S | Cr | Ni | Ti | N | |
EN/DIN | 1.4878 - X8CrNiTi18-10 - X12CrNiTi18-9 | ||||||||
<00.10 | <2.0 | <1.0 | <00.045 | <00.015 | 17.0 - 19.0 | 9.0 - 12.0 | <00.8 | - | |
ASTM | AISI 321H - UNS S32109 | ||||||||
0.04 - 0.10 | <2.0 | <00.75 | <00.045 | <00.030 | 17.0 - 19.0 | 9.0 - 12.0 | 0.16 - 0.70 | - | |
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 | |
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 | - |
AISI 321H Stainless Steel Pipe Mechanical Properties
Elements | 321H/ 1.4878, X8CrNiTi18-10, X12CrNiTi18-9 |
---|---|
Tensile stress | Rm: 500 - 720 N/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: 17.0-19.0 * 10-6 K-1 |
Stainless Steel 321H Pipe Yield Strength
Elements | 321H/ 1.4878, X8CrNiTi18-10, X12CrNiTi18-9 |
---|---|
Ultimate Tensile strength | Rm: 500 - 720 N/mm2 |
Yield strength | Rp0, 2: >190N/mm2 |
Stainless Steel 1.4878 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 |
SS 321H Pipe Roughness
UNS S32109 Pipe and Tube Test Requirements

321H SS Pipe Different manufacturing processes

DIN 1.4878 Stainless Steel Pipe and Tube Marking

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

Stainless Steel 321H Tube Pressure Rating
Allowable working pressures of Stainless Steel 321H 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 |
321H Pipe and Tube Welding
