Stainless Steel Products
Stainless Steel 321 Pipes | ASTM A312 TP321 Seamless, Welded & ERW Pipe Manufacturer in India
Specification
Chemical Composition
Stainless Steel 321 Pipes are titanium-stabilized austenitic stainless steel pipes designed for excellent resistance to intergranular corrosion and oxidation at elevated temperatures. Manufactured according to ASTM A312 TP321 Stainless Steel Pipes and ASME SA312 TP 321 Pipe specifications, these pipes are widely used in petrochemical plants, refineries, heat exchangers, power generation, chemical processing, aerospace, and high-temperature industrial applications. Available in seamless, welded, ERW, EFW, and Schedule 40 configurations, they provide outstanding weldability, strength, and long service life.
Detailed Information
Stainless Steel 321 Pipes Supplier, Manufacturer & Exporter
We are a trusted supplier and exporter of premium-quality Stainless Steel 321 Pipes manufactured to meet international quality standards. As a reliable 321 Stainless Steel Pipe Manufacturer in India, we offer an extensive range of seamless, welded, ERW, and EFW pipes suitable for demanding industrial environments.
Our products are manufactured using high-grade raw materials and undergo rigorous quality inspections to ensure dimensional accuracy, superior corrosion resistance, and long service life. Whether your project requires ASTM A312 TP321 Stainless Steel Pipes, UNS S32100 Seamless Pipe, or DIN 1.4541 Stainless Steel Pipe, we deliver products that comply with global industry specifications.
We maintain ready stock for standard sizes while also supplying customized pipe dimensions, wall thicknesses, and lengths according to project requirements.
What are ASTM A312 TP321 Stainless Steel Pipes?
ASTM A312 TP321 Stainless Steel Pipes are titanium-stabilized chromium-nickel stainless steel pipes developed to withstand high-temperature environments without carbide precipitation during welding. The titanium addition improves resistance to intergranular corrosion, making these pipes an excellent choice for continuous service temperatures up to approximately 870°C.
Common equivalent grades include:
- ASTM A312 TP321
- ASME SA312 TP 321 Pipe
- UNS S32100 Seamless Pipe
- DIN 1.4541 Stainless Steel Pipe
These pipes are extensively used where welding operations and elevated temperatures are involved.
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Stainless Steel 321 Welded Pipes Specifications :
|
Specification |
Details |
|
Material Grade |
Stainless Steel 321 |
|
Standard |
ASTM A312 / ASME SA312 |
|
Grade |
TP321 |
|
UNS Number |
UNS S32100 |
|
DIN |
1.4541 |
|
Manufacturing |
Seamless, Welded, ERW, EFW |
|
Size Range |
1/8″ NB to 48″ NB |
|
Wall Thickness |
SCH 5 to SCH XXS |
|
Pipe Schedule |
SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS |
|
Length |
Single Random, Double Random, Cut Length |
|
End Type |
Plain End, Beveled End, Threaded |
|
Surface Finish |
Annealed, Pickled, Bright Annealed, Polished |
Stainless Steel 321 Welded Pipes Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 800 | 0.10 max | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60 | 0.15 – 0.60 |
ASTM A 312 Stainless Steel 321 Pipes Grade Specifications
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321 | 1.4541 | S32100 |
Stainless Steel 321 Pipes Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| 321 | 515 | 205 | 40% | 217 |
Physical Properties of Stainless Steel 321 Pipe
| Grade | Density
(kg/m3) |
Elastic Modulus
(GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity
(W/m.K) |
Specific Heat 0-100°C
(J/kg.K) |
Elec 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 |
Types of Stainless Steel 321 Pipes
| Stainless Steel 321 Welded Pipes | TP 321 SS Rectangular Welded Pipe |
| 321 Stainless Steel Round Pipes | Stainless Steel 321 Square Pipe |
| SS 321 Seamless Round Pipes | 321 SS Square Seamless Pipes |
| 321 Stainless Steel Rectangular Pipes | 321 Austenitic Stainless Steel Pipes |
| 321 SS Electropolished Pipes | Stainless Steel 321 Cold Drawn Seamless Pipes |
| 321 High-Temperature Stainless Steel Pipes | SS 321 Pipes |
| Stainless Steel 321 Pipes | 321 Stainless Steel Piping |
Types of Stainless Steel 321 Pipes
Our product range includes:
- 321 Stainless Steel Seamless Pipe
- SS 321 Welded Pipe Stockist
- SS 321 ERW / EFW Pipes
- Schedule 40 SS 321 Pipe
- SS 321 Thick Wall Seamless Pipe
- ASTM A312 TP321 Pipe
- ASME SA312 TP321 Pipe
- UNS S32100 Pipe
- Round Pipes
- Large Diameter Pipes
- Custom Cut Length Pipes
- Polished & Pickled Pipes
Applications of ASTM A312 TP321 Stainless Steel Pipes
The excellent thermal stability of ASTM A312 TP321 Stainless Steel Pipes makes them suitable for numerous industries.
Common applications include:
- Oil & Gas Industry
- Petrochemical Plants
- Chemical Processing
- Refineries
- Fertilizer Plants
- Heat Exchangers
- Pressure Vessels
- Power Generation
- Aerospace Industry
- Pharmaceutical Industry
- Food Processing
- Paper & Pulp Plants
- Marine Engineering
- Water Treatment Facilities
- Industrial Boilers
Related Stainless Steel Pipes Grades
- ASTM A312 Stainless Steel 304 Pipes
- ASTM A312 / A249 Stainless Steel 304L Welded Pipe
- ASTM A312 Stainless Steel 304H Pipes
- ASTM A312 Stainless Steel 347H Pipes
- DIN 1.4541 Stainless Steel 321 Welded Pipe
- Stainless Steel 310S Pipes
- Stainless Steel 316 Welded Pipes
- Stainless Steel 316L Welded Pipes
- Stainless Steel 904L Welded Pipe
Why Choose Us as Your SS 321 Seamless Pipe Supplier?
As an experienced SS 321 Seamless Pipe Supplier and Stainless Steel 321 Pipes Exporter, we focus on supplying products that meet international quality expectations while ensuring competitive pricing and dependable service.
Our advantages include:
- Premium quality raw materials
- Complete material traceability
- Third-party inspection available
- Mill Test Certificates (MTC EN 10204 3.1)
- Fast worldwide delivery
- Large ready stock
- Custom sizes and wall thickness
- Competitive pricing
- Export-grade packaging
- Technical assistance before and after purchase
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- DIN 1.4541 Stainless Steel 321 Welded Pipe
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sales@amardeepsteel.com
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