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Girgaon, Mumbai - 400004
Stainless Steel Seamless Pipes Manufacturer & Stockist in India (Since 1984)
Trusted Global Manufacturer & Stockist of Stainless Steel Seamless Pipes
Kamal Steels is a leading Stainless Steel Seamless Pipes Manufacturer and Stockist in India, established in 1984. We supply high-quality stainless steel seamless pipes, seamless stainless steel pipes, and SS seamless pipes for commercial industrial applications worldwide.
Our stainless steel seamless pipes are available in grades 304, 304L, 316, 316L, 321, 347, and 904L with various sizes, schedules, and specifications. These stainless steel seamless pipes are widely used in oil & gas, petrochemical, chemical processing, power generation, marine, pharmaceutical, and food processing industries.
Our Stainless Steel Seamless Pipes are sourced from approved manufacturers and supplied with superior corrosion resistance, high tensile strength, excellent durability and long service life. All products are supplied according to international ASTM, ASME and ANSI standards with strict quality control and testing procedures.
As trusted stainless steel seamless pipe stockists in India, we provide seamless stainless pipes and tubes with accurate dimensions, smooth surface finish and reliable performance for high-pressure and high-temperature applications. Our commitment to product quality, ready stock availability, timely delivery, competitive pricing and customer satisfaction has made Kamal Steels a preferred choice in the stainless steel piping industry since 1984.
Looking for Best Price for SS Seamless Pipes?
Kamal Steels offers competitive pricing for Stainless Steel Seamless Pipes with ready stock availability for domestic and export requirements. Whether you need ASTM A312 TP304, TP304L, TP316, TP316L, TP321, TP347, or 904L seamless pipes, our sales team can provide a fast quotation based on your required size, schedule, quantity, and destination.
Get Quote / Best Price for Stainless Steel Seamless Pipes
- Instant Quotation Support (Fast Response)
- WhatsApp Inquiry Available
- SS 304, 316, 321 & 904L Seamless 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 Seamless Pipes?
SS seamless pipes are manufactured without welding joints, making them stronger and more reliable for high-pressure and high-temperature applications.
These pipes are widely used in industries where safety, durability and corrosion resistance are essential.
We maintain ready stock of ASTM A312 Stainless Steel Seamless Pipes in grades 304, 304L, 316, 316L, 321, 347 and 904L for immediate dispatch across India and export markets. Our SS seamless pipes are available in various sizes, schedules and wall thicknesses to meet diverse industrial requirements.
Stainless Steel Seamless Pipe Price in India
Kamal Steels offers competitive stainless steel seamless pipe price options for domestic and export requirements. Contact our sales team for a fast stainless steel seamless pipe quotation based on your required size, schedule, quantity, and delivery location.
Looking for the latest stainless steel seamless pipe price per meter? We provide customized pricing and ready stock availability for industrial projects of all sizes.
Factors Affecting Stainless Steel Seamless 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 Seamless Pipe Price in India, contact Kamal Steels today for an instant quotation and stock availability.
Why Global Buyers Trust Kamal Steels
- Established in 1984 (40+ Years Experience)
- Large Ready Stock Available in India
- ASTM A312 / ASME SA312 Certified Quality
- Export Supply to 25+ Countries
- Third Party Inspection (TPI) Available
- Mill Test Certificate (MTC) with Every Order
- Custom Cutting & Special Sizes Available
Trusted by EPC contractors, oil & gas, petrochemical and engineering industries.
Stainless Steel Seamless Pipe Specifications
We are also a reliable stainless steel seamless tube supplier offering seamless tubing solutions for heat exchangers, instrumentation, pharmaceutical and process industries.
Contact us for the latest seamless stainless steel tubing price and stock availability.
| Product Name | Stainless Steel Seamless Pipes |
|---|---|
| Brand | Kamal Steels |
| Material | Stainless Steel |
| Type | Seamless Pipe |
| Manufacturing Process | Hot Piercing, Extrusion & Cold Drawing Process |
| Construction | Seamless (Without Welded Joint) |
| Available Grades | 304, 304L, 316, 316L, 321, 347, 904L |
| Form | Round Seamless Pipe |
| Outer Diameter | 6 mm to 610 mm |
| Wall Thickness | 0.5 mm to 50 mm |
| Length | Single Random, Double Random, Cut Length |
| Pipe End | Plain End, Beveled End, Threaded End |
| Surface Finish | Annealed, Pickled, Bright Annealed, Polished |
| Standards | ASTM A312, ASTM A213, ASTM A269, ASME SA312, ASME B36.19M |
| Pipe Schedules | SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS |
| Service Conditions | High Pressure, High Temperature & Critical Process Applications |
| Applications | Oil & Gas, Petrochemical, Power Generation, Boilers, Heat Exchangers and Process Industries |
Technical Overview
These seamless stainless pipes offer excellent rust resistance and reliable performance in demanding operating conditions. They are supplied for both general engineering and critical process environments. These pipes are widely used where welded alternatives may not be preferred.
Send EnquiryAvailable Grades of Stainless Steel Seamless Pipe
Kamal Steels manufactures the following grades of stainless steel seamless pipes:
- Stainless Steel 304 Seamless Pipes
- Stainless Steel 304L Seamless Pipes
- Stainless Steel 304H Seamless Pipes
- Stainless Steel 310 Seamless Pipes
- Stainless Steel 310S Seamless Pipes
- Stainless Steel 310H Seamless Pipes
- Stainless Steel 316 Seamless Pipes
- Stainless Steel 316L Seamless Pipes
- Stainless Steel 316H Seamless Pipes
Why Stainless Steel Seamless Pipes Are Preferred for Critical Applications
Stainless steel seamless pipes are manufactured without any welded joint, providing a uniform structure throughout the pipe. This construction offers excellent strength, pressure resistance and reliability for demanding industrial applications.
SS seamless pipes are widely used in oil & gas, petrochemical, power generation, heat exchangers, boilers and chemical processing industries where high pressure, elevated temperatures and corrosion resistance are critical requirements.
Compared to conventional piping solutions, seamless pipes provide superior mechanical properties, reduced risk of leakage and excellent performance in severe operating conditions. Their robust construction makes them suitable for critical process systems where safety and long service life are essential.
Advantages of Stainless Steel Seamless Pipes
| Feature | Benefit |
|---|---|
| Seamless Construction | No welded joint for improved structural integrity |
| High Pressure Resistance | Suitable for demanding pressure applications |
| Excellent Strength | Uniform structure provides reliable performance |
| Leak Resistance | Reduced risk of leakage in critical systems |
| High Temperature Performance | Suitable for elevated temperature service conditions |
| Corrosion Resistance | Excellent resistance in aggressive environments |
| Long Service Life | Durable and reliable for long-term operation |
| Critical Applications | Ideal for oil & gas, petrochemical and power industries |
Stainless steel seamless pipes are preferred where reliability, pressure resistance and long-term performance are critical. Their seamless construction makes them a trusted choice for industrial applications requiring maximum safety and durability.
Stainless Steel Seamless Pipe Manufacturing Process
Understanding the Stainless Steel Seamless Pipe Manufacturing Process
SS seamless pipes are manufactured using high-quality stainless steel billets through a hot extrusion and rotary piercing process. Unlike welded pipes, seamless pipes are produced without any welding joint, ensuring higher strength, pressure resistance and durability. Kamal Steels is a Mumbai based stainless steel seamless pipe manufacturer and exporter in India.
| Step 1 |
Raw Material Selection High-grade stainless steel billets or round bars are selected according to the required grade, size, and application standards. |
|---|---|
| Step 2 |
Heating Process The stainless steel billet is heated at a high temperature in a furnace to make the material soft and workable for pipe formation. |
| Step 3 |
Rotary Piercing The heated billet is pierced using a rotary piercing machine to create a hollow shell. This is the primary step in producing seamless pipes. |
| Step 4 |
Pipe Elongation & Rolling The hollow shell is elongated and rolled through mandrel mills or rolling mills to achieve the required pipe diameter and wall thickness. |
| Step 5 |
Heat Treatment The pipes undergo heat treatment such as annealing or solution annealing to improve strength, corrosion resistance, and mechanical properties. |
| Step 6 |
Sizing & Straightening The pipes are sized accurately and straightened using precision machines to maintain dimensional accuracy and smooth finish. |
| Step 7 |
Testing & Inspection Each seamless pipe is tested through hydrostatic testing, ultrasonic testing, PMI testing, flattening tests, and visual inspection to ensure international quality standards. |
| Step 8 |
Finishing & Packaging The finished pipes are cleaned, marked, polished if required, and packed securely in wooden boxes, bundles, or export-worthy packaging for safe delivery. |
Chemical Composition of 304 and 316 Grades
The chemical composition of stainless steel grades plays a major role in corrosion resistance, strength and service performance. 304 and 316 are the most popular grades for general and corrosive applications.
| Grade | Cr % | Ni % | Mo % | C % | Mn % | Si % | P % | S % |
|---|---|---|---|---|---|---|---|---|
| 304 / 304L | 18.0–20.0 | 8.0–13.0 | — | 0.08 max / 0.03 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max |
| 316 / 316L | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | 0.08 max / 0.03 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max |
Chemical Composition of High-Temperature Grades
Grades such as 310, 321, 347 and their H versions are designed for elevated-temperature service and improved structural stability. They are widely used in furnaces, heat exchangers and thermal process systems.
Chemical Composition of 904L Grade
904L contains higher nickel and molybdenum content than standard austenitic grades. This gives it excellent resistance to strong acids and severe corrosive 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 Seamless Pipe Size Chart & Stainless Steel Seamless Pipe Dimensions
Schedule 40 and Schedule 80 Seamless Pipes
Schedule 40 and Schedule 80 are among the most commonly used thickness ranges in industrial piping. Schedule 40 is suitable for general applications, while Schedule 80 offers thicker walls for higher pressure and demanding service conditions.
Schedule 40S & Schedule 80S Stainless Steel Seamless 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 Seamless Pipe Standards
| ASTM Standards | ASME Standards | ANSI Standards |
|---|---|---|
| ASTM A312 | ASME B36.19M | ANSI B36.19 |
| ASTM A358 | ASME SA312 | - |
| ASTM A790 | ASME SA790 | - |
| ASTM A409 | - | - |
Mechanical Properties of Stainless Steel Seamless Pipes
Tensile Strength
Tensile strength indicates how much stress the pipe can withstand before breaking. Stainless steel seamless pipes generally provide strong tensile performance, making them suitable for pressure and structural applications.
Yield Strength
Yield strength shows the point at which the pipe begins to deform permanently. Good yield strength is important for reliable performance in piping systems exposed to internal pressure and load.
Elongation
Elongation reflects ductility and the pipe’s ability to bend or form without failure. Higher elongation is preferred in fabrication, installation and process service.
| 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 Seamless Pipes
- Excellent Corrosion Resistance: SS seamless pipes offer excellent resistance against rust, chemicals and moisture, making them suitable for harsh industrial and marine environments.
- High Temperature Strength: These pipes can withstand high temperatures and pressure conditions without losing their mechanical properties in demanding applications.
- Superior Durability: Manufactured without welding joints, seamless pipes provide superior strength, durability and long service life.
- Leak-Proof Construction: The seamless manufacturing process reduces leakage risks and improves performance in critical fluid transportation systems.
- Smooth Surface Finish: Smooth internal and external surfaces improve flow efficiency and reduce scaling or contamination during service.
- High Pressure Handling Capability: SS seamless pipes are designed to handle high internal pressure and heavy-duty industrial operations.
- Accurate Dimensions: Precision manufacturing ensures uniform wall thickness and accurate dimensions for easy installation and reliable performance.
- Easy Fabrication and Welding: These pipes support cutting, bending, fabrication and welding according to industrial project requirements.
- Long Service Life: Stainless steel seamless pipes provide reliable long-term performance even in aggressive operating conditions.
- Low Maintenance Requirements: Due to their corrosion resistance and strong construction, these pipes require minimal maintenance during service.
Applications of Stainless Steel Seamless Pipes in Industrial Industries
SS seamless pipes are widely used in industrial applications where corrosion resistance, high strength and pressure handling capability are required.
Oil & Gas Industry
Used for transporting oil, gas and high-pressure fluids in offshore and onshore operations with reliable performance.
Petrochemical Industry
Widely used in petrochemical plants for handling corrosive chemicals and high-temperature processing systems.
Chemical Processing Plants
Suitable for industrial chemical processing applications requiring strong corrosion resistance and durability.
Power Generation Plants
Used in thermal and power generation systems for steam handling and high-temperature piping applications.
Heat Exchangers
Preferred for heat exchanger systems because of their smooth finish and temperature resistance properties.
Boilers
These pipes are suitable for boiler systems operating under high pressure and demanding temperature conditions.
Water Treatment Plants
Used in desalination and water treatment systems because of their corrosion-resistant and hygienic properties.
Pharmaceutical Industry
Ideal for pharmaceutical applications requiring clean, contamination-free and durable piping systems.
Food Processing Industry
Widely used in food and beverage industries due to hygienic surfaces and corrosion resistance performance.
Marine Industry
Marine environments require corrosion-resistant piping systems capable of handling seawater exposure efficiently.
Construction Industry
Used in industrial and structural construction projects because of their strength and long service life.
Buy SS Pipes
Industries We Serve
Kamal Steels supplies stainless steel seamless pipes & tubes to various industries worldwide for high-pressure and corrosion-resistant applications.
Refineries
Our SS seamless pipes are widely used in refinery applications for transporting high-pressure fluids and chemicals safely.
Fertilizer Plants
Fertilizer industries require corrosion-resistant piping systems for chemical processing and industrial operations.
Cement Plants
These seamless pipes are suitable for demanding cement manufacturing and material handling systems.
Engineering Industry
Engineering sectors use SS seamless pipes for fabrication and industrial piping systems.
Offshore Industry
Offshore applications require durable and corrosion-resistant piping solutions for marine environments.
Automobile Industry
Automobile industries use seamless pipes in exhaust systems and industrial fluid transportation applications.
Packaging, Testing & Inspection
Packaging
- Wooden Boxes: Stainless steel seamless 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 external damage.
- Export Standard Packaging: All products are packed according to international export standards for safe worldwide delivery.
- Bubble Wrap Protection: Bubble wrapping provides additional surface protection during transportation and material handling.
Testing & Inspection
- Hydrostatic Testing: Ensures the pipe can withstand high internal pressure without leakage or failure.
- Ultrasonic Testing: Detects internal defects and confirms structural integrity of SS seamless pipes.
- PMI Testing: Positive Material Identification verifies the chemical composition and material grade accuracy.
- Flattening Test: Checks pipe flexibility and resistance to cracking under deformation conditions.
- Flaring Test: Evaluates pipe expansion capability and forming performance for fabrication applications.
- Intergranular Corrosion Test: Confirms corrosion resistance performance in aggressive industrial environments.
- Third Party Inspection: Independent inspection agencies verify quality, dimensions and testing compliance.
Frequently Asked Questions
Stainless steel seamless pipes are pipes manufactured without any welded joints using a rotary piercing and extrusion process. These pipes offer superior strength, corrosion resistance and high-pressure performance for industrial applications.
Stainless steel seamless pipes are widely used in oil & gas, petrochemical, chemical processing, power generation, marine, pharmaceutical, food processing and water treatment industries.
Kamal Steels supplies SS seamless pipes in grades including 304, 304L, 316, 316L, 321, 347, 310, 310S and 904L.
SS 316 seamless pipes contain molybdenum, which provides better corrosion resistance compared to SS 304 pipes, especially in marine and chemical environments.
We supply SS seamless pipes in sizes ranging from 6 mm to 610 mm outer diameter with various wall thicknesses and schedules.
Our stainless steel seamless pipes are supplied according to ASTM A312, ASME SA312, ASTM A790 and ANSI B36.19 standards.
SCH 40 and SCH 80 indicate pipe wall thickness. SCH 80 pipes have thicker walls and higher pressure handling capability than SCH 40 pipes.
Yes, all SS seamless pipes are supplied with Mill Test Certificates and testing reports according to international standards.
Yes, Kamal Steels exports SS seamless pipes to multiple countries worldwide with export-standard packaging and documentation support.
You can contact Kamal Steels through phone, email or WhatsApp for the latest price, stock availability and bulk order quotations.