Stainless Steel 317L Welded Pipes

Stainless Steel 317L Welded Pipe Manufacturer & Stockist in India

Chemical processing industries often require piping materials capable of withstanding aggressive acids and chloride-rich environments where conventional stainless steel grades may not provide sufficient corrosion resistance. Kamal Steels manufactures and stocks Stainless Steel 317 Welded Pipes engineered for such demanding applications. Manufactured in accordance with ASTM A312 and ASME SA312 standards using Stainless Steel 317 (UNS S31700 / WNR 1.4449), our welded pipes deliver exceptional resistance to pitting, crevice corrosion and chemical attack while maintaining excellent mechanical strength and fabrication characteristics.

The enhanced molybdenum content of Stainless Steel 317 provides superior corrosion resistance compared to conventional SS 316, making it particularly suitable for process industries handling aggressive chemicals and chloride-containing media. Our SS 317 Welded Pipes are widely used in chemical processing plants, fertilizer manufacturing, pulp & paper industries, petrochemical facilities, pharmaceutical production, marine engineering and process piping systems where long service life and reliable corrosion protection are essential.

Every Stainless Steel 317 Welded Pipe manufactured by Kamal Steels is produced using certified raw materials and undergoes comprehensive quality inspections to verify weld integrity, dimensional accuracy and material compliance. With extensive ready stock, project-specific manufacturing capabilities and prompt delivery, we supply dependable welded piping products that meet the performance requirements of industrial projects across India and international markets.

Stainless Steel 317L Welded Pipe Manufacturer Supplier Exporter in India

Stainless Steel 317L Welded Pipe Specifications

Product Stainless Steel 317L Welded Pipe
Material Grade 317L (UNS S31703)
Manufacturing Standard ASTM A312 / ASME SA312
Outside Diameter 1/8" NB to 24" NB (6 mm to 610 mm)
Wall Thickness SCH 5S to SCH XXS
Pipe Type Welded, ERW, EFW & Fabricated
Length Single Random, Double Random & Custom Cut Length
End Type Plain End, Beveled End & Threaded
Surface Finish Annealed & Pickled, Bright Annealed, 2B, No.1 & Polished
Inspection Hydro Test, PMI, Radiography, Visual Inspection & EN 10204 3.1 MTC

Features & Benefits of Stainless Steel 317L Welded Pipes

  • Low carbon content minimizes carbide precipitation after welding.
  • Superior resistance to pitting and crevice corrosion.
  • Excellent performance in chloride-containing environments.
  • Outstanding weldability without requiring post-weld heat treatment.
  • High resistance to corrosive chemicals and industrial process fluids.
  • Excellent strength, durability, and long operational life.
  • Smooth internal surface promotes efficient fluid flow.
  • Available in standard and customized dimensions.

Applications of Stainless Steel 317L Welded Pipes

Thanks to their excellent corrosion resistance and low-carbon composition, Stainless Steel 317L Welded Pipes are widely used in industries where welded joints are exposed to aggressive chemicals, moisture, and elevated operating temperatures.

  • Chemical Processing Plants
  • Petrochemical Industries
  • Oil & Gas Processing Facilities
  • Marine & Offshore Engineering
  • Pharmaceutical Manufacturing
  • Heat Exchanger Systems
  • Food & Beverage Processing
  • Pulp & Paper Industry
  • Water Treatment Plants
  • Fertilizer Plants
  • Process Piping Systems
  • Industrial Fluid Handling

Available Size Range

Kamal Steels supplies Stainless Steel 317L Welded Pipes in a comprehensive range of sizes to accommodate industrial piping systems used in chemical processing, marine engineering, food production, and other demanding applications. Custom dimensions can also be manufactured according to project specifications.

  • Outside Diameter: 6 mm to 610 mm
  • Nominal Bore: 1/8" NB to 24" NB
  • Wall Thickness: 0.5 mm to 25 mm
  • Length: Single Random, Double Random & Custom Cut Length
  • Customized sizes available as per customer drawings

Available Pipe Schedules

Pipe Schedule Status
SCH 5SAvailable
SCH 10SAvailable
SCH 20Available
SCH 40SAvailable
SCH 80SAvailable
SCH 120Available
SCH 160Available
XSAvailable
XXSAvailable

Surface Finish

To suit different fabrication and industrial requirements, Stainless Steel 317L Welded Pipes are supplied with multiple surface finishes that improve corrosion resistance, appearance, and processing efficiency.

Finish Application
Annealed & Pickled (AP) Ideal for corrosion-resistant industrial service.
Bright Annealed (BA) Smooth and reflective finish for clean process industries.
2B Finish General engineering and fabrication applications.
No.1 Finish Heavy-duty industrial installations.
Polished Finish Architectural, pharmaceutical, and hygienic applications.

Manufacturing Standards

Every Stainless Steel 317L Welded Pipe manufactured by Kamal Steels complies with internationally accepted specifications, ensuring consistent quality and dependable performance in critical industrial applications.

Standard Description
ASTM A312 Stainless Steel Seamless and Welded Pressure Pipes
ASME SA312 Pressure Pipe Specification
ASTM A358 Electric Fusion Welded Stainless Steel Pipes
ASTM A778 Welded Austenitic Stainless Steel Tubular Products
ASME B36.19M Dimensions for Stainless Steel Pipes
ASME B36.10M Steel Pipe Dimensions

Stainless Steel 317L Welded Pipe Chemical Composition

Element Composition (%)
Carbon (C)0.035 Max
Manganese (Mn)2.00 Max
Silicon (Si)1.00 Max
Phosphorus (P)0.045 Max
Sulfur (S)0.030 Max
Chromium (Cr)18.00 – 20.00
Nickel (Ni)11.00 – 15.00
Molybdenum (Mo)3.00 – 4.00
Iron (Fe)Balance

Mechanical Properties of Stainless Steel 317L Welded Pipe

Property Value
Tensile Strength515 MPa Minimum
Yield Strength (0.2% Offset)205 MPa Minimum
Elongation35% Minimum
Hardness95 HRB Maximum
Density8.0 g/cm³
Melting Range1370 – 1400°C

Equivalent Grades of Stainless Steel 317L Welded Pipe

Standard Grade
ASTM / ASME317L
UNSS31703
Werkstoff No.1.4438
ENX2CrNiMo18-15-4
JISSUS 317L
ISO317L

Why Choose Kamal Steels?

Kamal Steels supplies premium-quality Stainless Steel 317L Welded Pipes backed by strict quality control, certified raw materials, and advanced manufacturing practices. Our commitment to consistent product quality, timely deliveries, and responsive customer support has helped us become a trusted partner for industrial projects across India and international markets. Whether you require standard sizes or customized welded pipes, we provide reliable solutions that meet demanding application requirements.

Frequently Asked Questions

Stainless Steel 317L Welded Pipe is a low-carbon austenitic stainless steel pipe with increased molybdenum content, offering superior resistance to pitting, crevice corrosion, and chemical attack. It is widely used in highly corrosive process environments.

The primary difference is the carbon content. SS 317L contains lower carbon than SS 317, reducing carbide precipitation during welding and providing better resistance to intergranular corrosion in welded applications.

Our Stainless Steel 317L Welded Pipes are manufactured in accordance with ASTM A312, ASME SA312, ASTM A358, ASTM A778, ASME B36.19M, and other applicable international standards.

We supply SS 317L Welded Pipes from 1/8" NB to 24" NB in various wall thicknesses, schedules, and custom lengths to meet different industrial requirements.

These pipes provide excellent corrosion resistance, outstanding weldability, improved resistance to chloride environments, high mechanical strength, long service life, and reliable performance in aggressive process conditions.

They are extensively used in chemical processing plants, petrochemical industries, marine applications, pharmaceutical manufacturing, pulp & paper mills, food processing, water treatment plants, and heat exchanger systems.

Every pipe undergoes Hydrostatic Testing, Positive Material Identification (PMI), Radiographic Testing, Flattening Test, Visual Inspection, Dimensional Inspection, and other quality checks before dispatch.

Yes. Kamal Steels supplies Stainless Steel 317L Welded Pipes with EN 10204 3.1 Mill Test Certificates. Third-party inspection certificates can also be provided upon customer request.

Yes. Kamal Steels manufactures and supplies customized welded pipes in various diameters, wall thicknesses, lengths, end preparations, and surface finishes according to project specifications.

Kamal Steels is a trusted manufacturer, supplier, stockist, and exporter of Stainless Steel 317L Welded Pipes, offering certified quality materials, advanced manufacturing, competitive pricing, prompt delivery, complete inspection documentation, and dependable customer support for projects across India and worldwide.