Specification
Chemical Composition
Stainless Steel 321 Welded Pipe Manufacturer in India | ASTM A358 TP 321 Stainless Steel EFW Pipes
Detailed Information
Stainless Steel 321 Welded Pipes are titanium-stabilized austenitic stainless steel pipes designed for high-temperature and corrosive industrial environments. Manufactured according to standards such as ASTM A358 TP 321 Stainless Steel EFW Pipes and ASME SA 312 TP 321 Welded Pipe, these pipes offer excellent resistance to oxidation, intergranular corrosion, and thermal stress. Because of their superior performance at elevated temperatures, SS 321 welded pipes, 321 SS ERW Pipe, and Stainless Steel 321 EFW Pipes are widely used in industries such as oil & gas, petrochemical processing, aerospace engineering, power generation, and chemical manufacturing.
As a trusted Stainless Steel 321 Welded Pipe exporter in India and experienced ASME SA 312 TP 321 Welded Pipe manufacturer in India, we supply high-quality welded piping solutions manufactured using advanced production methods and strict quality control standards. Our product range includes SS UNS S32109 Welded 321 Pipe, AISI 321 ERW Pipe, and UNS S32100 ERW Pipes Dealer products, ensuring reliable performance across demanding industrial applications.
What is Stainless Steel 321 Welded Pipe?
Stainless Steel 321 Welded Pipe is produced by forming stainless steel plates or coils into cylindrical shapes and welding them along the longitudinal seam. This type of pipe belongs to the austenitic stainless steel family and contains titanium as a stabilizing element.
The addition of titanium prevents chromium carbide precipitation during welding, which improves resistance to intergranular corrosion. Because of this stabilization, SS 321 welded pipes maintain their corrosion resistance even after prolonged exposure to elevated temperatures.
Industries that operate at high temperatures frequently choose Stainless Steel 321 Welded Pipe because it provides:
- Excellent resistance to oxidation
- High temperature stability
- Strong mechanical properties
- Reliable corrosion resistance
- Good weldability and fabrication characteristics
These properties make ASTM A358 TP 321 Stainless Steel EFW Pipes and 321 SS ERW Pipe suitable for demanding industrial systems where durability and performance are essential.
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ASTM A358 TP 321 Stainless Steel EFW Pipes Specifications
|
Specification |
Details |
|
Standard |
ASTM A358 / ASTM A312 / ASME SA312 |
|
Material Grade |
Stainless Steel 321 |
|
UNS Number |
UNS S32100 / UNS S32109 |
|
Pipe Types |
Welded / ERW / EFW |
|
Outer Diameter |
6 mm – 2000 mm |
|
Wall Thickness |
SCH 5 – SCH XXS |
|
Length |
Single Random / Double Random / Cut Length |
|
Surface Finish |
Annealed, Pickled, Polished, Mill Finish |
|
Form |
Round Pipes |
These specifications ensure that our ASTM A358 TP 321 Stainless Steel EFW Pipes meet the performance requirements of modern industrial systems.
Chemical Composition of Stainless Steel 321 Welded Pipe
|
Element |
Composition (%) |
|
Carbon |
0.08 max |
|
Chromium |
17.0 – 19.0 |
|
Nickel |
9.0 – 12.0 |
|
Manganese |
2.0 max |
|
Silicon |
0.75 max |
|
Titanium |
5× Carbon min |
Mechanical Properties of SS 321 Welded Pipes
|
Property |
Value |
|
Tensile Strength |
515 MPa min |
|
Yield Strength |
205 MPa min |
|
Elongation |
40% min |
|
Hardness |
95 HRB max |
These mechanical properties ensure that SS 321 welded pipes maintain strength and reliability even in high-temperature industrial environments.
Key Features of Stainless Steel 321 Welded Pipes
Industries choose Stainless Steel 321 Welded Pipe because of its exceptional material properties.
- High Temperature Resistance: The titanium stabilization allows SS 321 welded pipes to maintain structural integrity at elevated temperatures.
- Superior Corrosion Resistance: The alloy provides excellent protection against oxidation and chemical corrosion.
- Resistance to Intergranular Corrosion: Grade 321 prevents chromium carbide precipitation during welding operations.
- Excellent Weldability: AISI 321 ERW Pipe and SS 321 EFW Pipes are easy to fabricate and weld.
- Long Service Life: These pipes offer durability and reliability in harsh industrial environments.
Applications of Stainless Steel 321 Welded Pipes
Because of their high-temperature stability and corrosion resistance, SS 321 welded pipes are widely used in many industries.
- Oil and Gas Industry: Used in refineries, offshore platforms, and pipeline systems.
- Petrochemical Industry: Suitable for transporting hydrocarbons and chemical fluids.
- Power Generation: Used in boilers, heat exchangers, and high-temperature piping systems.
- Aerospace Industry: Used in aircraft exhaust systems and engine components.
- Chemical Processing Plants: Ideal for transporting corrosive chemicals and process fluids.
- Food Processing Industry: The corrosion resistance of Stainless Steel 321 Welded Pipe makes it suitable for hygienic environments.
Manufacturing Process of Stainless Steel 321 Welded Pipes
The production of Stainless Steel 321 Welded Pipe involves several carefully controlled manufacturing stages.
- Selection of high-quality stainless steel plates or coils
- Forming of the metal into cylindrical pipe shapes
- Precision welding using ERW or fusion welding processes
- Heat treatment to enhance mechanical properties
- Surface finishing and dimensional inspection
- Quality testing and certification
Each stage ensures that ASTM A358 TP 321 Stainless Steel EFW Pipes meet international quality standards.
Testing and Quality Assurance
All SS 321 welded pipes undergo strict quality inspection before supply. Testing procedures include:
- Hydrostatic testing
- Ultrasonic testing
- Radiography testing
- Eddy current testing
- Mechanical testing
- Chemical analysis
These tests ensure that every Stainless Steel 321 Welded Pipe meets international quality requirements.
Why Choose Us as Stainless Steel 321 Welded Pipe Supplier?
Industries worldwide choose us for reliable supply of SS 321 welded pipes.
- Industry Experience: We have extensive experience supplying stainless steel piping products to industrial clients.
- International Quality Standards: All products comply with ASTM, ASME, and international industrial standards.
- Wide Product Range: We offer SS 321 EFW Pipes, AISI 321 ERW Pipe, and SS UNS S32109 Welded 321 Pipe.
- Global Export Capability: As a reliable Stainless Steel 321 Welded Pipe exporter in India, we supply products to international markets.
- Strict Quality Control: Every pipe undergoes detailed inspection to ensure performance and durability.
Stainless Steel 321 Welded Pipe Supplier and Exporter in India
India has become a major global hub for stainless steel piping solutions. As an experienced ASME SA 312 TP 321 Welded Pipe manufacturer in India, we supply high-quality piping products to industries worldwide.
Our manufacturing capabilities, strict quality standards, and reliable logistics network enable us to deliver Stainless Steel 321 Welded Pipe solutions for small and large industrial projects. Our export markets include:
- Middle East
- Europe
- Southeast Asia
- North America
- Africa
Our focus is to deliver durable, corrosion-resistant, and high-performance piping solutions that meet the demanding requirements of modern industries.
Looking for Stainless Steel 321 Welded Pipes?
Contact our technical team today for product specifications, pricing, and bulk supply of:
- ASTM A358 TP 321 Stainless Steel EFW Pipes
- SS 321 Welded Pipes
- 321 SS ERW Pipe
- AISI 321 ERW Pipe
- SS UNS S32109 Welded 321 Pipe
We provide reliable stainless steel piping solutions for industrial projects worldwide.
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