Stainless Steel 316L Seamless Pipes

Trusted Global Manufacturer & Stockist of Stainless Steel 316L Seamless Pipes

Kamal Steels is a leading manufacturer, supplier, stockist and exporter of Stainless Steel 316L Seamless Pipes in India. We supply premium-quality 316L Stainless Steel Pipes manufactured from low-carbon austenitic stainless steel with molybdenum addition, offering exceptional resistance to corrosion, pitting, crevice corrosion and aggressive chemical environments. The reduced carbon content of TP316L minimizes carbide precipitation during welding, making it the preferred choice for critical process piping applications.

Our extensive inventory includes ASTM A312 TP316L Seamless Pipes in various sizes, schedules and wall thicknesses to meet diverse industrial requirements. These pipes are widely used in chemical processing plants, pharmaceutical manufacturing facilities, food processing industries, marine applications, offshore platforms, petrochemical projects, water treatment systems and oil & gas installations. The seamless construction provides superior strength, excellent pressure-handling capability and reliable leak-free performance in demanding service conditions.

As a trusted TP316L Pipe Supplier, Kamal Steels maintains ready stock of SS 316L Seamless Pipes for immediate dispatch and project requirements. Our commitment to quality, competitive pricing, technical support, mill test certification and worldwide export services has established us as a preferred source for 316L Stainless Steel Seamless Pipes across domestic and international markets.

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Get Quote / Best Price for Stainless Steel 316L Seamless Pipes

Looking for competitive prices on ASTM A312 TP316L Stainless Steel Seamless Pipes? Kamal Steels offers ready stock of SS 316L Seamless Pipes with fast delivery, Mill Test Certificates and worldwide export support. Contact our sales team today for the latest pricing, stock availability and project requirements.

  • Instant Quotation Within 24 Hours
  • WhatsApp & Email Inquiry Support
  • ASTM A312 TP316L Seamless Pipes Ready Stock
  • UNS S31603 / WNR 1.4404 Available
  • Bulk Order & Project Pricing Discounts
  • Mill Test Certificate (MTC) Included
  • Third Party Inspection (TPI) Available
  • Worldwide Export & Fast Dispatch
  • Custom Length Cutting Services
  • Technical Support from Industry Experts

Certifications & Compliance

Kamal Steels follows strict quality management systems and international manufacturing standards to ensure the consistent quality of Stainless Steel 310H Seamless Pipes supplied to domestic and global customers. Every product undergoes stringent inspection and testing procedures before dispatch.

  • ISO 9001:2015 Certified Company
  • ISO 14001 Certified
  • ISO 45001 Certified
  • MSME Registered Company
  • IEC Export Certification
  • GST Registered Business
  • EN 10204 3.1 Certification Available
  • Third Party Inspection (TPI) Support

What is ASTM A312 TP316L Seamless Pipe?

ASTM A312 Pipe TP316L Seamless Pipe is a low-carbon austenitic stainless steel pipe manufactured for high-temperature and corrosion-resistant applications. It contains chromium, nickel and molybdenum, providing excellent resistance to pitting, crevice corrosion and aggressive chemical environments. The low carbon content of TP316L minimizes carbide precipitation during welding, making it ideal for welded piping systems.

SS 316L Seamless Pipe is produced without a welded seam, resulting in superior strength, improved pressure handling capability and enhanced reliability in critical industrial services. Compared to standard TP316 stainless steel pipe, TP316L offers better weldability and improved resistance to intergranular corrosion.

ASTM A312 TP316L Seamless Pipes are widely used in chemical processing plants, pharmaceutical manufacturing, food processing industries, marine engineering, offshore platforms, petrochemical facilities and water treatment systems. These pipes are available in various sizes, schedules and wall thicknesses to meet diverse industrial requirements.

SS 316L Seamless Pipe Price in India

The price of SS 316L Seamless Pipe depends on factors such as pipe size, wall thickness, schedule, quantity, manufacturing standard, testing requirements and prevailing stainless steel raw material costs. Pipes with larger diameters and heavier schedules generally command higher prices due to increased material consumption and production costs.

ASTM A312 TP316L Seamless Pipe is widely preferred for applications requiring superior corrosion resistance and excellent weldability. As a result, pricing may vary based on project specifications, delivery requirements and inspection standards. Additional requirements such as third-party inspection, special packaging and export documentation can also influence the final cost.

Kamal Steels maintains ready stock of SA312 TP316L Pipe, SS 316L Seamless Pipe and 316L Stainless Steel Pipe in various sizes and schedules. Contact our sales team for the latest price list, stock availability and customized project quotations.

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ASTM A312 TP316L Pipe Specification

ASTM A312 TP316L Seamless Pipe is manufactured to ASTM A312 and ASME SA312 standards for high-temperature and corrosive service applications. The low carbon content of TP316L improves weldability and provides enhanced resistance to intergranular corrosion.

Specification Details
Standard ASTM A312 / ASME SA312
Grade TP316L
UNS Number S31603
Werkstoff Number 1.4404
Pipe Type Seamless
Size Range 1/8" NB to 24" NB
Outside Diameter 6.00 mm to 610 mm
Wall Thickness 0.5 mm to 50 mm
Schedules SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160
Length Single Random, Double Random, Cut Length
Manufacturing Process Cold Drawn / Hot Finished Seamless
Standards Followed ASTM, ASME, ANSI, DIN, EN, JIS
End Finish Plain End, Beveled End, Threaded End
Test Certificates EN 10204 3.1, Mill Test Certificate (MTC)

316L Seamless Pipe Dimensions & Weight Chart

ASTM A312 TP316L Seamless Pipes are available in a wide range of nominal pipe sizes, outside diameters and wall thicknesses. The dimensions are generally manufactured according to ASME B36.19M standards for stainless steel piping applications.

NPS OD (mm) SCH 10S SCH 40S SCH 80S
1/2" 21.34 2.11 2.77 3.73
3/4" 26.67 2.11 2.87 3.91
1" 33.40 2.77 3.38 4.55
1½" 48.30 2.77 3.68 5.08
2" 60.33 2.77 3.91 5.54
3" 88.90 3.05 5.49 7.62
4" 114.30 3.05 6.02 8.56
6" 168.28 3.40 7.11 10.97

Weight of SS 316L Seamless Pipe varies depending on the pipe diameter, wall thickness and length. Higher schedules contain more material and therefore weigh more than lighter schedules of the same pipe size.

SS 316L Pipe Schedule Chart

SS 316L Seamless Pipes are manufactured in various schedules to meet different pressure, temperature and flow requirements. The schedule number indicates the wall thickness of the pipe. Higher schedule numbers generally provide thicker walls, greater strength and higher pressure resistance.

NPS OD (mm) SCH 5S SCH 10S SCH 40S SCH 80S
1/2" 21.34 1.65 2.11 2.77 3.73
3/4" 26.67 1.65 2.11 2.87 3.91
1" 33.40 1.65 2.77 3.38 4.55
1½" 48.30 1.65 2.77 3.68 5.08
2" 60.33 1.65 2.77 3.91 5.54
3" 88.90 2.11 3.05 5.49 7.62
4" 114.30 2.11 3.05 6.02 8.56
6" 168.28 2.77 3.40 7.11 10.97

The most commonly used schedules for ASTM A312 TP316L Seamless Pipe are SCH 10S, SCH 40S and SCH 80S. Selection of the appropriate schedule depends on operating pressure, temperature, corrosion allowance and project specifications.

SS 316L Pipe Chemical Composition

The chemical composition of ASTM A312 TP316L Seamless Pipe is carefully controlled to provide excellent corrosion resistance, superior weldability and long-term performance in aggressive environments. The addition of molybdenum improves resistance to pitting and crevice corrosion, while the lower carbon content minimizes carbide precipitation during welding.

Element Composition (%)
Carbon (C) 0.03 Max
Manganese (Mn) 2.00 Max
Silicon (Si) 0.75 Max
Phosphorus (P) 0.045 Max
Sulfur (S) 0.030 Max
Chromium (Cr) 16.00 – 18.00
Nickel (Ni) 10.00 – 14.00
Molybdenum (Mo) 2.00 – 3.00
Nitrogen (N) 0.10 Max
Iron (Fe) Balance

The combination of chromium, nickel and molybdenum makes SS 316L Seamless Pipe highly resistant to corrosion in marine, chemical processing, pharmaceutical and food processing applications. The low carbon content distinguishes TP316L from standard TP316 and makes it the preferred choice for welded piping systems.

ASTM A312 TP316L Mechanical Properties

The mechanical properties of ASTM A312 TP316L Seamless Pipe provide an excellent balance of strength, toughness and ductility. These properties make SS 316L Seamless Pipe suitable for high-pressure piping systems, corrosive environments and elevated temperature applications across various industries.

Property Value
Tensile Strength 515 MPa Min
Yield Strength 205 MPa Min
Elongation 35% Min
Hardness 95 HRB Max
Density 8.0 g/cm³
Melting Range 1375°C – 1400°C
Modulus of Elasticity 193 GPa

Due to its excellent mechanical strength and superior corrosion resistance, ASTM A312 TP316L Pipe is widely used in chemical processing plants, offshore structures, pharmaceutical facilities, marine systems and food processing industries where reliability and long service life are essential.

ASTM A312 TP316L Pressure Rating

The pressure rating of ASTM A312 TP316L Seamless Pipe depends on factors such as pipe size, wall thickness, operating temperature and applicable design standards. Pipes with thicker walls generally provide higher pressure handling capability than thinner schedules of the same nominal size.

For example, SCH 80S pipes typically withstand higher internal pressures than SCH 40S pipes because of their increased wall thickness. Engineers must consider design temperature, corrosion allowance and service conditions when selecting the appropriate pipe schedule.

Pipe Schedule Relative Pressure Capability Common Applications
SCH 5S Low Low Pressure Service
SCH 10S Moderate Process Industries
SCH 40S High Industrial Piping Systems
SCH 80S Very High High Pressure Applications

Corrosion Resistance of 316L Stainless Steel Pipe

One of the primary advantages of ASTM A312 TP316L Seamless Pipe is its outstanding corrosion resistance. The addition of 2–3% molybdenum significantly improves resistance to pitting and crevice corrosion in chloride-containing environments compared to standard 304 stainless steel.

The low carbon content of SS 316L Seamless Pipe helps prevent sensitization and intergranular corrosion after welding, making it particularly suitable for fabricated piping systems and welded process equipment.

Due to its excellent resistance to chemicals, seawater, acidic solutions and industrial contaminants, 316L Stainless Steel Pipe is widely used in marine applications, offshore platforms, chemical processing plants, pharmaceutical facilities and water treatment systems.

Corrosive Environment 316L Performance
Marine Atmosphere Excellent
Salt Water Exposure Excellent
Organic Chemicals Very Good
Acidic Solutions Good to Excellent
Industrial Pollution Excellent
Food Processing Environment Excellent

TP316 vs TP316L Pipe

Although both grades offer similar corrosion resistance and mechanical performance, the primary difference between TP316 and TP316L is carbon content. TP316L contains lower carbon, making it more suitable for welding applications and environments where intergranular corrosion resistance is important.

Property TP316 TP316L
Carbon Content 0.08% Max 0.03% Max
UNS Number S31600 S31603
Weldability Good Excellent
Intergranular Corrosion Resistance Good Superior
Fabricated Equipment Suitable Preferred
Pressure Piping Excellent Excellent

For most welded piping systems, engineers often prefer ASTM A312 TP316L Seamless Pipe because of its enhanced resistance to weld decay and post-weld corrosion.

Why TP316L is Preferred for Welding Applications

ASTM A312 TP316L Seamless Pipe is specifically designed with a lower carbon content than standard TP316 stainless steel. This reduced carbon level helps prevent carbide precipitation during welding, minimizing the risk of sensitization and intergranular corrosion in the heat-affected zone.

Because of its superior weldability, SS 316L Seamless Pipe is extensively used in fabricated piping systems, pressure vessels, storage tanks, heat exchangers and process equipment that require frequent welding and long-term corrosion resistance.

Unlike higher carbon stainless steel grades, TP316L often eliminates the need for post-weld heat treatment in many industrial applications, reducing fabrication costs and project completion time.

Feature Benefit
Low Carbon Content Reduces Carbide Precipitation
Excellent Weldability Simplifies Fabrication
Improved Corrosion Resistance Protects Welded Areas
Reduced Risk of Sensitization Longer Service Life
Suitable for Heavy Welding Ideal for Process Industries

Equivalent Grades of ASTM A312 TP316L Pipe

ASTM A312 TP316L Seamless Pipe is recognized internationally under various standards and material specifications. These equivalent grades help engineers and buyers identify compatible materials across global markets.

Standard Grade
ASTM / ASME TP316L / SA312 TP316L
UNS S31603
EN 1.4404
DIN X2CrNiMo17-12-2
JIS SUS 316L
ISO 316L Stainless Steel

These equivalent grades provide similar corrosion resistance, mechanical properties and weldability characteristics, making them suitable substitutes in international engineering projects.

Features & Benefits of SS 316L Seamless Pipe

ASTM A312 TP316L Seamless Pipe is one of the most widely used stainless steel piping materials for corrosive and high-performance industrial applications. Its combination of low carbon content, molybdenum addition and seamless construction provides superior reliability, durability and long service life.

Feature Benefit
Low Carbon Content (0.03% Max) Reduces intergranular corrosion after welding
Molybdenum Alloyed Grade Improves pitting and crevice corrosion resistance
Seamless Construction Provides higher strength and pressure capability
Excellent Weldability Suitable for fabricated piping systems
Superior Corrosion Resistance Performs well in chemical and marine environments
High Temperature Resistance Suitable for elevated temperature service
Smooth Internal Surface Improves flow efficiency and cleanliness
Long Service Life Reduces maintenance and replacement costs
Excellent Mechanical Strength Reliable performance under demanding conditions
Wide Availability Available in multiple sizes and schedules

Because of these advantages, SS 316L Seamless Pipe is commonly selected for chemical processing, pharmaceutical manufacturing, food processing plants, offshore platforms, marine installations, water treatment systems and oil & gas projects worldwide.

Applications of ASTM A312 TP316L Seamless Pipe

The excellent corrosion resistance, weldability and mechanical strength of ASTM A312 TP316L Seamless Pipe make it suitable for a wide range of industrial applications where reliability and long-term performance are critical.

  • Chemical Processing Plants
  • Petrochemical Industries
  • Oil & Gas Processing Facilities
  • Marine & Offshore Platforms
  • Shipbuilding Industry
  • Water Treatment Plants
  • Desalination Systems
  • Power Generation Projects
  • Pharmaceutical Manufacturing
  • Food & Beverage Processing
  • Heat Exchangers
  • Pressure Vessels
  • Process Piping Systems
  • Pulp & Paper Industries
  • Refineries
  • Industrial Fabrication Projects

Due to its low carbon content and excellent corrosion resistance, TP316L Pipe is especially preferred in welded piping systems operating in aggressive environments where long service life and minimal maintenance are required.

Frequently Asked Questions About ASTM A312 TP316L Seamless Pipe

ASTM A312 TP316L Seamless Pipe is a low-carbon austenitic stainless steel pipe containing chromium, nickel and molybdenum. It offers excellent corrosion resistance, superior weldability and is widely used in chemical, marine, pharmaceutical and food processing industries.

The primary difference is carbon content. TP316L contains a maximum of 0.03% carbon compared to 0.08% in TP316. This lower carbon content improves weldability and reduces the risk of intergranular corrosion after welding.

SS 316L Seamless Pipes are commonly available from 1/8" NB to 24" NB in various schedules including SCH 5S, SCH 10S, SCH 40S and SCH 80S according to ASTM A312 and ASME standards.

The molybdenum content in 316L Stainless Steel Pipe provides excellent resistance to pitting and crevice corrosion caused by chlorides and seawater, making it ideal for marine and offshore environments.

ASTM A312 TP316L Pipes are available in SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 120 and SCH 160 depending on project requirements and pressure ratings.

Yes. TP316L Pipe is specifically preferred for welding applications because its low carbon content minimizes carbide precipitation and improves resistance to weld-related corrosion.

These pipes are widely used in chemical processing, oil & gas, pharmaceuticals, food processing, marine engineering, offshore platforms, power generation and water treatment industries.

Yes. SS 316L Seamless Pipes are generally supplied with EN 10204 3.1 Mill Test Certificates (MTC) and can also be provided with third-party inspection reports upon request.

The price depends on pipe size, schedule, quantity, testing requirements and current stainless steel raw material costs. Contact Kamal Steels for the latest TP316L Pipe price and stock availability.

Kamal Steels is a leading manufacturer, stockist, supplier and exporter of ASTM A312 TP316L Seamless Pipe in India, offering ready stock, competitive pricing and worldwide delivery.

Speak to Our Sales Team