Stainless Steel 316/316L Pipes Manufacturer
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What Are Stainless Steel 316 and 316L Pipes?
The austenitic 300 series stainless steel family which includes stainless steel 316 and 316L is made for applications requiring a high level of chemical stability and corrosion resistance. These alloys function well in harsh environments especially those that are acidic or chloride-rich. Chromium (Cr), nickel (Ni) and molybdenum (Mo) make the chemical base of SS 316 molybdenum is the essential component that improves resistance to pitting and crevice corrosion.
The carbon content is the primary distinction between 316 and 316L stainless steel. Because SS 316 has about 0.08% carbon it has superior tensile strength and creep resistance at high temperatures. The low carbon stainless steel pipe variety SS 316L on the other hand has a maximum carbon content of 0.03% which greatly enhances weldability and inhibits carbide precipitation during the welding process. Both grades can be used in a variety of pressure and process systems where corrosion control and structural performance are crucial because they offer seamless and welded forms.
Key Advantages of Stainless Steel 316/316L Pipes
Long-Term Durability in Harsh Conditions
Both SS 316 and 316L offer outstanding resistance to corrosive environments making it dependable for systems exposed to fluctuating pressures and moderate heat. This stability ensures a longer service life with minimal maintenance.
Resistance to Process-Induced Contamination
The non-reactive, smooth surface finish of these grades prevents material shedding and chemical interaction, helping maintain purity in process lines. This benefit is especially critical where contamination control is a top priority.
High Weld-Integrity Performance
One of the most important benefits of 316L stainless steel is its low carbon content, which prevents weld decay and intergranular corrosion. This makes it ideal for welding-intensive fabrication, producing strong, clean welds without the need for post-weld heat treatment.
Dimensional Stability Under Load
Even after extended exposure to load-bearing conditions, both grades retain exceptional mechanical strength and shape retention. They are reliable high temperature stainless steel pipe material because of their ability to function in supporting roles or structural lines under pressure.
Custom Fabrication Suitability
These alloys adapt well to cutting, forming, machining and bending, without cracking or fatigue. SS 316 pipe’s ability to be easily integrated into intricate assemblies makes it perfect for precision builds that require each component to be strong and resistant to corrosion.
SS 316 and 316L are widely preferred over many stainless steel grades because of their molybdenum content, which significantly improves resistance to chlorides and harsh corrosive agents. This advantage makes them dependable choices in aggressive environments where standard austenitic grades may not hold up.
Compared to SS 304, which is more economical and readily available, 316/316L offers superior protection against pitting and chemical attack—particularly in marine or chloride-exposed conditions. While 304 may suffice in general-use applications, it lacks the enhanced durability that 316-grade alloys provide in corrosive media.
SS 310 performs better at elevated temperatures due to its high oxidation resistance, but it doesn’t match 316/316L’s corrosion performance in moisture-rich or acidic surroundings. In contrast, 316Ti improves thermal stability through titanium stabilization, but 316L remains easier to weld and fabricate without the risk of sensitisation.
On the duplex side, Duplex 2205 delivers greater mechanical strength and stress resistance but tends to be less ductile than 316L and more challenging to work with during forming or welding.
Specification of 316/316L Stainless Pipe
Stainless Steel 316/316L pipes are manufactured to ASTM A312, ASTM A213, ASTM A269, and ASTM A249 standards, ensuring reliable performance in pressure-rated and structural piping applications. To satisfy a range of fabrication and service needs, these pipes are offered in seamless, welded, ERW and EFW varieties. They facilitate precise fitment and project specific design flexibility with a broad range of schedules (SCH 5 to SCH 160), end types (plain, beveled and threaded) and cut to length options.

Seamless Pipe OD : 1/8 -12" NPS
Welded Pipe OD : 6.35 to 114.3 mm
EFW Pipe Size : 6″ NB – 24″ NB

ASTM A312, ASTM A213, ASTM A269, ASTM A249

Seamless, ERW, Welded, Fabricated

Round, Square, Rectangular, Hydraulic Etc

Single Random, Double Random & Cut Length.

Plain End, Beveled End, Treaded

SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS

No. 2B - Mill finish/ Matte finish, No.8 - Mirror finish, No. 4 - Brushed finish, Bright, Annealing, Polished, Mirror
Types of SS 316/316L Pipes
Stainless Steel 316/316L pipes are manufactured in multiple forms to meet varying demands for corrosion resistance, mechanical strength and operating pressure.
Manufacturing Types
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Seamless PipeManufactured without welds, SS 316/316L seamless pipes are ideal for high-pressure, precision-demanding environments where uniform strength is essential.
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Welded PipeWelded pipes which are made by joining strips of stainless steel, are an affordable choice for systems with moderate pressure and consistent resistance to corrosion.
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ERW (Electric Resistance Welded) PipeElectric resistance welding is used to create ERW 316 stainless steel pipes which are appropriate for light mechanical and structural uses.
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EFW (Electric Fusion Welded) PipeEFW pipes, which have smooth interiors and strength for fluid handling, are utilized in large-diameter piping for process industries.
Pipe Forms
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Round PipeRound SS 316 pipes are the most common form, designed for efficient and clean fluid or gas transport in piping networks.
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Square PipeStrength and symmetry are combined in SS 316 square pipes which are frequently utilized in visible pipeline designs and structural frameworks.
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Rectangular PipeThese pipes are valued for their flat-sided design, ideal in structural systems where load distribution and aesthetic matter.
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Hydraulic PipeTight dimensional control in hydraulic stainless steel pipes guarantees steady flow and pressure in high-performance fluid systems.
Contact us today to discuss how Stainless Steel 316/316L Pipes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
SS 316 and SS 316L are austenitic stainless steels formulated with controlled chemical compositions that directly influence their corrosion resistance, mechanical behaviour, and fabrication characteristics. These elements define how the material performs in demanding environments.
The main difference is the carbon content: SS 316L has a carbon content of only 0.03% whereas SS 316 phas up to 0.08% greatly lowering the possibility of carbide precipitation during welding.
| Grade | UNS No | C | Mn | P | S | Si | Cr | Ni | Mo |
| TP316 | S31600 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 |
| TP316L | S31603 | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 |
Ensuring dependable performance under load bearing, pressure-rated and structural conditions, ASTM A312 and associated material standards define the mechanical properties of SS 316 and 316L pipes. The appropriateness of the pipe in settings with mechanical stress, internal pressure, and external loads is determined in part by these specifications.
With a slight variation caused by the carbon content, SS 316 and 316L have strength levels that are almost identical. Due to its higher carbon content, SS 316 provides marginally better creep resistance at higher temperatures; however for stress sensitive designs, SS 316L maintains excellent tensile and yield strength while enhancing weld integrity.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
The international recognition of stainless steel 316 and 316L under a variety of material designations aids procurement teams and engineers in ensuring cross standard compatibility. These equivalent grades enable smooth material selection in differeny country projects because they meet with major international specifications like UNS, EN, DIN, JIS and others.
| Grade | UNS No | Japanese JIS | Euronorm No | Euronorm Name | Old British BS | Old British En | Swedish SS |
| 316 | S31600 | SUS 316 | 1.4301 | X5CrNi18-10 | 304S31 | 58E | 2332 |
| 316L | S31603 | SUS 316L | 1.4404 | X2CrNiMo18-10 | 304S51 | 58L | 2333 |
Why 316/316L Performs in Corrosive Environments
SS 316L with its low carbon content, prevents sensitisation and intergranular corrosion following welding or prolonged heat exposure. This feature makes 316L especially effective for welded process systems that must endure corrosive flow media without post-weld heat treatment or risk of internal attack along grain boundaries. Because of this combined behaviour, molybdenum induced passivation and resistance to thermal sensitisation SS 316/316L pipes perform reliably in environments that challenge most metals.
Stainless Steel Pipe Grades We Also Offer
Stainless Steel 316/316L Pipe Dimensions
| Stainless Steel OD mm | Pipe WT mm | in. | Sch | Kg/m |
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 13.72 | 2.24 | 1/4 | 40S | 0.64 |
| 13.72 | 3.02 | 1/4 | 80S | 0.81 |
| 17.15 | 1.65 | 3/8 | 10S | 0.64 |
| 17.15 | 2.31 | 3/8 | 40S | 0.86 |
| 17.15 | 3.20 | 3/8 | 80S | 1.12 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 21.34 | 2.77 | 1/2 | 40S | 1.29 |
| 21.34 | 3.73 | 1/2 | 80S | 1.65 |
| 26.67 | 2.11 | 3/4 | 10S | 1.30 |
| 26.67 | 2.87 | 3/4 | 40S | 1.71 |
| 26.67 | 3.91 | 3/4 | 80S | 2.23 |
| 33.40 | 2.77 | 1 | 10S | 2.13 |
| 33.40 | 3.38 | 1 | 40S | 2.54 |
| 33.40 | 4.55 | 1 | 80S | 3.29 |
| 33.40 | 6.35 | 1 | 160 | 4.30 |
| 42.16 | 2.77 | 1¼ | 10S | 2.73 |
| 42.16 | 3.56 | 1¼ | 40S | 3.44 |
| 42.16 | 4.85 | 1¼ | 80S | 4.53 |
| 42.16 | 6.35 | 1¼ | 160 | 5.69 |
| 48.26 | 2.77 | 1½ | 10S | 3.16 |
| 48.26 | 3.68 | 1½ | 40S | 4.11 |
| 48.26 | 5.08 | 1½ | 80S | 5.49 |
| 60.33 | 2.77 | 2 | 10S | 3.99 |
| 60.33 | 3.91 | 2 | 40S | 5.52 |
| 60.33 | 5.54 | 2 | 80S | 7.60 |
| 60.33 | 8.74 | 2 | 160 | 11.29 |
| 73.03 | 3.05 | 2½ | 10S | 5.35 |
| 73.03 | 5.16 | 2½ | 40S | 8.77 |
| 73.03 | 7.01 | 2½ | 80S | 11.59 |
| 88.90 | 3.05 | 3 | 10S | 6.56 |
| 88.90 | 5.49 | 3 | 40S | 11.47 |
| 88.90 | 7.62 | 3 | 80S | 15.51 |
| 88.90 | 11.13 | 3 | 160 | 21.67 |
| 101.60 | 3.05 | 3½ | 10S | 7.53 |
| 101.60 | 5.74 | 3½ | 40S | 13.78 |
| 101.60 | 8.08 | 3½ | 80S | 18.92 |
| 114.30 | 3.05 | 4 | 10S | 8.50 |
| 114.30 | 6.02 | 4 | 40S | 16.32 |
| 114.30 | 8.56 | 4 | 80S | 22.67 |
| 114.30 | 13.49 | 4 | 160 | 34.05 |
| 141.30 | 6.55 | 5 | 40S | 22.10 |
| 141.30 | 9.53 | 5 | 80S | 31.44 |
| 141.30 | 15.88 | 5 | 160 | 49.87 |
| 168.28 | 3.40 | 6 | 10S | 14.04 |
| 168.28 | 7.11 | 6 | 40S | 28.69 |
| 168.28 | 10.97 | 6 | 80S | 43.21 |
| 168.28 | 14.27 | 6 | 120 | 54.75 |
| 168.28 | 18.26 | 6 | 160 | 68.59 |
| 219.08 | 8.18 | 8 | 40S | 43.20 |
| 219.08 | 12.70 | 8 | 80S | 65.63 |
| 219.08 | 18.23 | 8 | 120 | 91.30 |
| 219.08 | 23.01 | 8 | 160 | 112.97 |
Stainless Steel 316/316L Thickness Chart
| Nominal size [inches] | Outside diameter [inches] | Outside diameter [mm] | Wall thickness [inches] | Wall thickness [mm] | Weight [lb/ft] | Weight [kg/m] |
| 1/8 | 0.405 | 10.3 | 0.095 | 2.41 | 0.31 | 0.47 |
| 1/4 | 0.54 | 13.7 | 0.119 | 3.02 | 0.54 | 0.8 |
| 1/2 | 0.84 | 21.3 | 0.147 | 3.73 | 1.09 | 1.62 |
| 3/4 | 1.05 | 26.7 | 0.154 | 3.91 | 1.47 | 2.2 |
| 1 | 1.315 | 33.4 | 0.179 | 4.55 | 2.17 | 3.24 |
| 1 1/4 | 1.66 | 42.2 | 0.191 | 4.85 | 3 | 4.47 |
| 1 1/2 | 1.9 | 48.3 | 0.2 | 5.08 | 3.63 | 5.41 |
| 2 | 2.375 | 60.3 | 0.218 | 5.54 | 5.02 | 7.48 |
| 2 1/2 | 2.875 | 73 | 0.276 | 7.01 | 7.66 | 11.41 |
| 3 | 3.5 | 88.9 | 0.3 | 7.62 | 10.25 | 15.27 |
| 3 1/2 | 4 | 101.6 | 0.318 | 8.08 | 12.5 | 18.63 |
| 4 | 4.5 | 114.3 | 0.337 | 8.56 | 14.98 | 22.32 |
| 5 | 5.563 | 141.3 | 0.375 | 9.53 | 20.78 | 30.97 |
| 6 | 6.625 | 168.3 | 0.432 | 10.97 | 28.57 | 42.56 |
| 8 | 8.625 | 219.1 | 0.5 | 12.7 | 43.39 | 64.64 |
| 10 | 10.75 | 273 | 0.594 | 15.09 | 64.43 | 96.01 |
| 12 | 12.75 | 323.8 | 0.688 | 17.48 | 88.63 | 132.08 |
| 14 | 14 | 355.6 | 0.75 | 19.05 | 106.13 | 158.1 |
| 16 | 16 | 406.4 | 0.844 | 21.44 | 136.61 | 203.53 |
| 18 | 18 | 457 | 0.938 | 23.83 | 170.92 | 254.55 |
| 20 | 20 | 508 | 1.031 | 26.19 | 208.87 | 311.17 |
| 24 | 24 | 610 | 1.125 | 30.96 | 296.58 | 442.08 |
Price of SS 316/316L Pipe per Kg in India
How SS 316/316L Pipes Are Manufactured
The SS 316 pipe manufacturing process involves two main techniques: seamless and welded, selected based on pressure ratings, dimensional tolerances, and end-use conditions. The base of seamless pipes is a solid billet of stainless steel that is heated and pierced into a hollow tube using rotary piercing or extrusion equipment. After that the wall thickness and diameter are refined to meet the necessary specifications by rolling, sizing, and annealing
When it comes to welded pipes, techniques like electric resistance welding (ERW) and electric fusion welding (EFW) are used to form flat-rolled stainless steel strips or plates into cylindrical shapes and join them longitudinally. Depending on the hygienic needs of the application or the desired surface finish the seam is heat-treated after welding and may then be pickled or polished.
Annealing minimizes internal stress and increases corrosion resistance in 316/316L pipes whether they are seamless or welded. To guarantee complete compliance with ASTM A312 and other pertinent standards, pipes undergo surface inspection, non destructive testing (NDT) such as radiography or ultrasonic examination and dimensional accuracy checks prior to dispatch.
Round Bar

Analytic

Cut to Length

Centering

Heating

Perforation

Inspection of Size

Pickling

Inspection of Surface

Lubricating

Cold Drawing (Cold Rolling)

Degreasing

Annealing

Straightening

Cut

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping
Applications of SS 316/316L Pipes
As a trustworthy supplier of SS 316 pipe in India, Midland Alloys Inc. is distinguished by its reliable quality, timely delivery and customer focused philosophy. As a certified manufacturer of 316L pipes we deliver products with complete traceability and documentation while closely adhering to international standards like ASTM A312 and ASME SA312. In order to guarantee adherence to project-specific specifications, clients are provided with mill test certificates (EN 10204 3.1) and the opportunity for third party inspection by reputable organizations such as TUV, BV or DNV. Structural applications like boiler tubes, condensers and pressure vessels also benefit from their high mechanical stability. 316L pipes with their low carbon content, are especially preferred for welded assemblies as they minimise the risk of intergranular corrosion without requiring post-weld heat treatment.
In order to protect SS 316/316L pipes during storage and transportation we use fumigation certified wooden crates, waterproof wrapping and plastic end caps. For fast dispatch for both domestic and international orders, the company, a reputable stockist of SS 316 pipe in India, keeps ready inventory in standard sizes and schedules.Customers can order custom finishes and cut-to-length pieces straight from inventory, guaranteeing a precisely fit supply for continuing fabrication or project requirements. We guarantee complete documentation support for shipments abroad, including custom ready packaging, Mill Test Certificates (MTCs) and third party inspection (TPI) approvals.
Why Choose Midland Alloys Inc. for SS 316/316L Pipes
As a trustworthy supplier of SS 316 pipe in India, known for our reliable quality, timely delivery, and customer-focused philosophy. As a certified manufacturer of 316L pipes the business delivers products with complete traceability and documentation while closely adhering to international standards like ASTM A312 and ASME SA312. In order to guarantee adherence to project-specific specifications, clients are provided with mill test certificates (EN 10204 3.1) and the opportunity for third-party inspection by reputable organizations such as TUV, BV, or DNV.
We maintain a strong inventory of stainless steel pipe stock, including custom lengths, mirror or polished finishes and cut-to-length options to support both routine and urgent procurement needs. As experienced stainless steel pipe exporters, Midland efficiently handles global shipments with logistics coverage across the Gulf, Europe, and Southeast Asia, offering secure packing and export documentation.
With a focus on competitive pricing, fast response times, and reliable customer service, Midland Alloys Inc. continues to build long-standing partnerships with industrial buyers worldwide as a certified SS pipe supplier.
FAQs – SS 316/316L Pipes
Yes, SS 316/316L pipes perform exceptionally well in marine and coastal environments due to their molybdenum-enhanced corrosion resistance, which helps prevent pitting and crevice corrosion caused by chlorides in seawater.
Absolutely. These pipes are manufactured as per ASTM A312, ASTM A213, and ASTM A269 standards, and are available with EN 10204 3.1 mill test certificates and optional third-party inspections (TUV, BV, DNV), ensuring full global compliance.
The pressure rating depends on pipe size, schedule (wall thickness), and temperature, but SS 316/316L pipes can typically withstand pressures up to 6000 psi or more in high-schedule seamless configurations.
Yes. SS 316L offers superior chloride resistance compared to SS 304L, making it the preferred choice for coastal construction, seawater pipelines, and outdoor structural applications where salt-laden air is present.



