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Girgaon, Mumbai - 400004
Stainless Steel Welded Pipes Manufacturer & Stockist in India (Since 1984)
Trusted Global Manufacturer & Stockist of Stainless Steel Welded Pipes
Kamal Steels is a leading Stainless Steel Welded Pipe Manufacturer and Stockist in India, established in 1984. We supply high-quality SS welded pipes for industrial, commercial and engineering applications worldwide.
We maintain a large ready stock of stainless steel welded pipes in grades such as 304, 304L, 316, 316L, 321, 347 and 904L in various sizes, schedules and specifications. Our SS welded pipes are widely used in oil & gas, petrochemical, chemical processing, power generation, water treatment, marine, pharmaceutical, food processing and construction industries.
Our Stainless Steel Welded Pipes are manufactured from premium quality stainless steel coils and plates using advanced welding technology to ensure excellent dimensional accuracy, superior corrosion resistance, high strength and long service life. All products are supplied according to international ASTM, ASME and ANSI standards and undergo strict quality control and testing procedures.
As trusted stainless steel welded pipe stockists in India, we provide stainless steel welded pipes and tubes with smooth surface finish, precise dimensions and reliable performance for low, medium and high-pressure applications. Our commitment to quality products, ready stock availability, competitive pricing, timely delivery and customer satisfaction has made Kamal Steels a preferred stainless steel welded pipe supplier in India since 1984.
Looking for the Best Price for SS Welded Pipes?
Kamal Steels offers competitive pricing for Stainless Steel Welded Pipes with ready stock availability for domestic and export requirements. Whether you require ASTM A312 TP304 Welded Pipes, TP304L Welded Pipes, TP316 Welded Pipes, TP316L Welded Pipes, TP321 Welded Pipes, TP347 Welded Pipes or 904L Welded Pipes, our sales team can provide a fast quotation based on your required size, schedule, quantity and delivery destination.
Get Quote / Best Price for Stainless Steel Welded Pipes
- Instant Quotation Support (Fast Response)
- WhatsApp Inquiry Available
- SS 304, 316, 321 & 904L Welded Pipes in Stock
- Bulk Order & Project Pricing
- Mill Test Certificate (MTC) Available
- Third Party Inspection (TPI) Support
- Export Documentation Support
- Ready Stock Dispatch Worldwide
Why Choose Stainless Steel Welded Pipes?
Stainless steel welded pipes offer excellent dimensional accuracy, smooth surface finish and cost-effective performance for a wide range of industrial applications.
Manufactured using advanced welding technology, SS welded pipes provide reliable strength, corrosion resistance and long service life for low, medium and high-pressure systems.
We maintain ready stock of ASTM A312 Stainless Steel Welded Pipes in grades 304, 304L, 316, 316L, 321, 347 and 904L for immediate dispatch across India and export markets.
Stainless Steel Welded Pipe Price in India
Kamal Steels offers competitive stainless steel welded pipe price options for domestic and export requirements. Contact our sales team for a fast stainless steel welded pipe quotation based on your required size, schedule, quantity, and delivery location.
Looking for the latest stainless steel welded pipe price per meter? We provide customized pricing and ready stock availability for industrial projects of all sizes.
Factors Affecting Stainless Steel Welded Pipe Price
- Pipe Size & Outside Diameter (OD)
- Wall Thickness & Schedule
- Length Requirements
- Order Quantity
- Testing & Inspection Requirements
- Surface Finish Requirements
- Current Stainless Steel Market Rates
- Delivery Location
For the latest Stainless Steel Welded Pipe Price in India, contact Kamal Steels today for an instant quotation and stock availability.
Why Global Buyers Trust Kamal Steels?
- Manufacturer & Stockist Since 1984
- Large Ready Stock Available
- ASTM & ASME Standard Pipes
- Third Party Inspection
- Mill Test Certificates Provided
- PAN India & Export Supply
- Competitive Prices
- Fast Delivery Support
Stainless Steel Welded Pipe Specifications
| Product Name | Stainless Steel Welded Pipes |
|---|---|
| Brand | Kamal Steels |
| Material | Stainless Steel |
| Type | Welded Pipe |
| Manufacturing Process | TIG Welded, ERW Welded, Laser Welded |
| Weld Type | Longitudinal Welded Seam |
| Available Grades | 304, 304L, 316, 316L, 321, 347, 904L |
| Form | Round, Square, Rectangular |
| Outer Diameter | 6 mm to 610 mm |
| Wall Thickness | 0.5 mm to 40 mm |
| Length | Single Random, Double Random, Cut Length |
| Pipe End | Plain End, Beveled End, Threaded End |
| Surface Finish | Annealed, Pickled, Polished, Bright Annealed |
| Standards | ASTM A312, ASTM A358, ASTM A778, ASME SA312, ASME B36.19M |
| Pipe Schedules | SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS |
| Applications | Industrial Process Piping, Water Treatment, Food Processing, Pharmaceutical, Construction and Structural Applications |
Technical Overview
Our stainless steel welded pipes are suitable for applications that require accurate dimensions, excellent corrosion resistance and reliable mechanical performance. They are supplied for both general engineering and industrial process applications where consistent quality and cost-effective piping solutions are important. These ss welded pipe are widely used in chemical processing, water treatment, food processing, construction and structural applications.
Available Grades of Stainless Steel Welded Pipes
Kamal Steels manufactures the following grades of Stainless Steel Welded Pipes:
- Stainless Steel 304 Welded Pipes
- Stainless Steel 304L Welded Pipes
- Stainless Steel 304H Welded Pipes
- Stainless Steel 310 Welded Pipes
- Stainless Steel 310S Welded Pipes
- Stainless Steel 310H Welded Pipes
- Stainless Steel 316 Welded Pipes
- Stainless Steel 316L Welded Pipes
- Stainless Steel 316H Welded Pipes
Stainless Steel Pipe Seamless vs Welded
The comparison between stainless steel pipe seamless vs welded depends on the manufacturing process, pressure requirements, application and cost. Seamless pipes are manufactured without any welded joint, while welded pipes are produced by forming stainless steel coils or plates and welding the seam using advanced welding techniques.
Stainless steel seamless pipes are generally preferred for high-pressure, high-temperature and critical industrial applications because they offer superior strength and uniform structure. These pipes are widely used in oil & gas, petrochemical, power generation and refinery industries where maximum reliability is required.
On the other hand, stainless steel welded pipes provide excellent dimensional accuracy, smooth surface finish and cost-effective performance for general industrial and commercial applications. Modern welding technology ensures strong weld seams and reliable mechanical properties, making welded pipes suitable for water treatment, food processing, pharmaceutical, construction and structural applications.
Difference Between Stainless Steel Seamless and Welded Pipes
| Property | Seamless Pipes | Welded Pipes |
|---|---|---|
| Manufacturing Process | Manufactured without welding | Manufactured using welded seam |
| Strength | Higher pressure strength | Good mechanical strength |
| Surface Finish | Smooth internal finish | Smooth external and internal finish |
| Cost | Higher | More economical |
| Dimensional Accuracy | Moderate | Excellent |
| Pressure Handling | Suitable for high pressure | Suitable for low to medium pressure |
| Applications | Critical industrial service | General industrial applications |
| Availability | Limited large sizes | Wide range of sizes available |
Both seamless and welded stainless steel pipes offer excellent corrosion resistance and durability. The selection depends on operating pressure, temperature, application requirements and budget.
Stainless Steel Welded Pipe Manufacturing Process
Understanding the Stainless Steel Welded Pipe Manufacturing Process
Stainless Steel Welded Pipes are manufactured using high-quality stainless steel billets through a hot extrusion and rotary piercing process. Unlike welded pipes, Welded Pipes are produced without any welding joint, ensuring higher strength, pressure resistance and durability.
| Step 1 |
Raw Material Selection High-quality stainless steel coils or sheets are selected according to the required grade, size and application. |
|---|---|
| Step 2 |
Coil Uncoiling & Slitting The stainless steel coil is uncoiled and slit into the required width to match pipe dimensions. |
| Step 3 |
Forming The slit strip is gradually formed into a round pipe shape using forming rollers. |
| Step 4 |
Welding The formed edges are welded using TIG, laser or high-frequency welding processes to create a strong and continuous seam. |
| Step 5 |
Sizing & Straightening The welded pipe is sized accurately and straightened using precision machinery. |
| Step 6 |
Heat Treatment The pipes undergo annealing or solution annealing to improve corrosion resistance and mechanical properties. |
| Step 7 |
Testing & Inspection Each welded pipe is tested through hydrostatic testing, eddy current testing, PMI testing and visual inspection. |
| Step 8 |
Finishing & Packaging The finished pipes are cleaned, polished if required and packed securely for safe delivery. |
Chemical Composition of 304 and 316 Grades
The chemical composition of stainless steel welded pipes directly influences corrosion resistance, weld quality, mechanical strength and fabrication performance. Grades 304 and 316 are widely used in welded piping systems because of their excellent weldability, durability and long-term service reliability across various industrial applications.
| Grade | Cr % | Ni % | Mo % | C % |
|---|---|---|---|---|
| 304 / 304L | 18.0–20.0 | 8.0–13.0 | — | 0.08 max / 0.03 max |
| 316 / 316L | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | 0.08 max / 0.03 max |
Chemical Composition of High-Temperature Grades
High-temperature grades including 310, 321, 347 and their H variants are widely used in welded piping systems exposed to elevated temperatures. These grades provide excellent oxidation resistance, thermal stability and reliable weld performance in demanding industrial environments such as furnaces, boilers and heat exchangers.
Chemical Composition of 904L Grade
904L stainless steel is a high-alloy austenitic grade containing elevated levels of nickel and molybdenum. It is commonly used in welded pipe applications requiring exceptional resistance to strong acids, chloride attack and highly corrosive industrial environments.
| Grade | Cr % | Ni % | Mo % | C % | Mn % | Si % | P % | S % |
|---|---|---|---|---|---|---|---|---|
| 904L | 19.0–23.0 | 23.0–28.0 | 4.0–5.0 | 0.02 max | 2.0 max | 1.0 max | 0.045 max | 0.035 max |
Stainless Steel Welded Pipe Size Chart & Stainless Steel Welded Pipe Dimensions
Schedule 40 and Schedule 80 Welded Pipes
Schedule 40S and Schedule 80S are the most commonly specified wall thicknesses for stainless steel welded pipes. Schedule 40S pipes are widely used for general process piping, while Schedule 80S pipes offer thicker walls and are preferred for higher pressure and more demanding industrial applications.
The following stainless steel welded pipe size chart shows standard outside diameters and wall thicknesses for Schedule 40S and Schedule 80S pipes as per ASME B36.19M specifications.
Schedule 40S & Schedule 80S Stainless Steel Welded Pipe Chart
| Pipe Size | Outside Diameter | SCH 40S WT | SCH 80S WT |
|---|---|---|---|
| 1/8" | 10.3 mm | 1.73 mm | 2.41 mm |
| 1/4" | 13.7 mm | 2.24 mm | 3.02 mm |
| 3/8" | 17.1 mm | 2.31 mm | 3.20 mm |
| 1/2" | 21.3 mm | 2.77 mm | 3.73 mm |
| 3/4" | 26.7 mm | 2.87 mm | 3.91 mm |
| 1" | 33.4 mm | 3.38 mm | 4.55 mm |
| 1 1/4" | 42.2 mm | 3.56 mm | 4.85 mm |
| 1 1/2" | 48.3 mm | 3.68 mm | 5.08 mm |
| 2" | 60.3 mm | 3.91 mm | 5.54 mm |
| 2 1/2" | 73.0 mm | 5.16 mm | 7.01 mm |
| 3" | 88.9 mm | 5.49 mm | 7.62 mm |
| 4" | 114.3 mm | 6.02 mm | 8.56 mm |
| 5" | 141.3 mm | 6.55 mm | 9.52 mm |
| 6" | 168.3 mm | 7.11 mm | 10.97 mm |
| 8" | 219.1 mm | 8.18 mm | 12.70 mm |
| 10" | 273.0 mm | 9.27 mm | 12.70 mm |
| 12" | 323.9 mm | 9.52 mm | 12.70 mm |
| 14" | 355.6 mm | 9.52 mm | 12.70 mm |
| 16" | 406.4 mm | 9.52 mm | 12.70 mm |
| 18" | 457.2 mm | 9.52 mm | 12.70 mm |
| 20" | 508.0 mm | 9.52 mm | 12.70 mm |
| 24" | 609.6 mm | 9.52 mm | 12.70 mm |
Difference Between SCH 40S and SCH 80S Pipes
| Property | SCH 40S | SCH 80S |
|---|---|---|
| Wall Thickness | Standard | Heavy |
| Pressure Capacity | Medium Pressure | High Pressure |
| Weight | Lower | Higher |
| Strength | Moderate | Superior |
| Application Type | General Industrial Use | Heavy-Duty Industrial Use |
| Common Industries | Water, food, pharma | Oil & gas, refinery, petrochemical |
Stainless Steel Welded Pipe Standards
| ASTM Standards | ASME Standards | ANSI Standards |
|---|---|---|
| ASTM A312 | ASME B36.19M | ANSI B36.19 |
| ASTM A358 | ASME SA312 | - |
| ASTM A778 | ASME SA778 | - |
Mechanical Properties of Stainless Steel Welded Pipes
Tensile Strength
Tensile strength indicates the maximum stress a stainless steel welded pipe can withstand before failure. Strong tensile properties make welded pipes suitable for industrial process piping, structural applications and fluid transportation systems.
Yield Strength
Yield strength represents the stress level at which the welded pipe begins permanent deformation. Adequate yield strength helps ensure reliable performance under pressure and mechanical loading conditions.
Elongation
Elongation measures the ductility of stainless steel welded pipes and their ability to stretch without fracture. Higher elongation supports easier fabrication, bending and installation during project execution.
The following mechanical properties of stainless steel welded pipes are provided for commonly used grades including SS 304, 304L, 316, 316L, 321 and 904L. These values help engineers and buyers select the appropriate material for pressure, temperature and fabrication requirements.
| Grade | Tensile Strength (MPa, min) | Yield Strength (MPa, min) | Elongation (% min) |
|---|---|---|---|
| SS 304 | 515 | 205 | 40% |
| SS 304L | 485 | 170 | 40% |
| SS 316 | 515 | 205 | 40% |
| SS 316L | 485 | 170 | 40% |
| SS 321 | 515 | 205 | 40% |
| SS 904L | 490 | 220 | 35% |
Features of Stainless Steel Welded Pipes
- Excellent Corrosion Resistance: Stainless Steel Welded Pipes provide excellent resistance against rust, chemicals and moisture, making them suitable for corrosive industrial and marine environments.
- Smooth Surface Finish: These pipes offer smooth internal and external surface finish which improves flow efficiency and reduces contamination during industrial operations.
- High Dimensional Accuracy: Advanced manufacturing and welding processes ensure precise dimensions, uniform wall thickness and reliable performance.
- Strong Welded Seam: Modern welding technology creates strong and durable welded seams suitable for industrial pressure and structural applications.
- Cost-Effective Solution: Stainless Steel Welded Pipes are considered an economical piping solution for industrial, commercial and structural applications.
- Good Fabrication Properties: These pipes support easy cutting, bending, fabrication and welding according to project and industrial requirements.
- High Durability: Stainless Steel Welded Pipes provide long-lasting performance and mechanical strength even in demanding operating conditions.
- Easy Installation: Accurate dimensions and lightweight construction make Stainless Steel Welded Pipes easy to transport, handle and install.
Applications of Stainless Steel Welded Pipes
Stainless Steel Welded Pipes are widely used in industrial applications requiring corrosion resistance, dimensional accuracy and reliable performance.
Oil & Gas Industry
Used for fluid transportation systems, refinery piping and industrial process applications in oil & gas industries.
Petrochemical Industry
Widely used in petrochemical plants for handling chemicals, gases and high-temperature industrial operations.
Chemical Processing Plants
Suitable for chemical processing applications requiring corrosion-resistant and durable piping systems.
Power Generation Plants
Used in thermal and industrial power systems for steam, water and process piping applications.
Heat Exchangers
Preferred for heat exchanger systems because of their smooth surface finish and reliable heat resistance properties.
Water Treatment Plants
Used in water treatment and desalination systems because of their corrosion resistance and hygienic properties.
Pharmaceutical Industry
Ideal for pharmaceutical industries requiring clean, contamination-free and reliable piping systems.
Food Processing Industry
Widely used in food and beverage processing industries because of hygienic surfaces and corrosion resistance.
Marine Industry
Marine applications require corrosion-resistant welded pipes capable of handling seawater and harsh environmental conditions.
Construction Industry
Used in industrial construction, structural applications and commercial building projects because of strength and durability.
Structural Applications
Stainless steel welded pipes are widely used in structural fabrication, support systems, industrial frameworks and construction projects.
Architectural Applications
Used in handrails, decorative structures, commercial buildings and architectural projects requiring corrosion resistance and attractive appearance.
Process Piping Systems
Stainless steel welded pipes are extensively used in industrial process piping systems for transporting liquids, gases and chemicals.
Industries We Serve
Kamal Steels supplies Stainless Steel Welded Pipes & tubes to various industries worldwide for industrial and structural applications.
Refineries
Our Stainless Steel Welded Pipes are widely used in refinery systems for transporting chemicals, fluids and industrial gases safely.
Fertilizer Plants
Fertilizer industries use welded pipes for chemical handling and corrosion-resistant industrial piping systems.
Cement Plants
These welded pipes are suitable for cement manufacturing plants and industrial material handling systems.
Engineering Industry
Engineering sectors use Stainless Steel Welded Pipes for fabrication, process piping and industrial applications.
Offshore Industry
Offshore industries require durable and corrosion-resistant welded piping systems for marine environments.
Shipbuilding Industry
Shipbuilding applications use Stainless Steel Welded Pipes for fluid transportation and marine structural systems.
Automobile Industry
Automobile industries use welded pipes in exhaust systems, fabrication and industrial fluid handling applications.
Paper & Pulp Industry
Paper and pulp industries require Stainless Steel Welded Pipes for chemical processing and industrial production systems.
Packaging, Testing & Inspection
Packaging
- Wooden Boxes: Stainless Steel Welded Pipes are packed securely in wooden boxes to prevent damage during transportation and export handling.
- Bundles Packing: Pipes are bundled properly for easy loading, unloading and safe storage during shipment.
- Plastic End Caps: Plastic caps are provided on pipe ends to protect against dust, moisture and handling damage.
- Export Standard Packaging: All products are packed according to international export standards for safe worldwide delivery.
Testing & Inspection
- Hydrostatic Testing: Ensures the welded pipe can withstand internal pressure without leakage or structural failure.
- Eddy Current Testing: Detects surface and subsurface defects in welded pipes to ensure product quality and weld integrity.
- PMI Testing: Positive Material Identification verifies the chemical composition and grade accuracy of Stainless Steel Welded Pipes.
- Flattening Test: Checks pipe flexibility, weld strength and resistance to cracking under deformation conditions.
- Visual Inspection: Each pipe undergoes visual inspection to confirm surface quality, dimensions and weld finish.
- Third Party Inspection: Independent inspection agencies verify product quality, dimensions and testing compliance according to international standards.
Frequently Asked Questions
Stainless steel welded pipes are manufactured by forming stainless steel coils or plates into a tubular shape and joining the edges using welding processes such as TIG, laser or high-frequency welding.
Stainless steel welded pipes are widely used in water treatment, food processing, pharmaceutical, construction, chemical processing, marine and general industrial applications.
Kamal Steels supplies stainless steel welded pipes in grades 304, 304L, 316, 316L, 321, 347, 310, 310S and 904L.
SS 316 welded pipes contain molybdenum, which provides better resistance to chlorides and corrosive environments compared to SS 304 welded pipes.
We supply stainless steel welded pipes in sizes ranging from 6 mm to 610 mm outer diameter with various wall thicknesses and schedules.
Our stainless steel welded pipes are supplied according to ASTM A312, ASTM A358, ASTM A778, ASME SA312 and ANSI B36.19 standards.
SCH 40S and SCH 80S indicate pipe wall thickness. SCH 80S welded pipes have thicker walls and are suitable for higher-pressure applications than SCH 40S pipes.
Yes, all stainless steel welded pipes are supplied with Mill Test Certificates (MTC) and relevant quality documentation.
Yes, Kamal Steels exports stainless steel welded pipes worldwide with export-standard packaging, documentation and logistics support.
Contact Kamal Steels with your required grade, size, schedule and quantity to receive the latest stainless steel welded pipe price and stock availability.