Stainless Steel 316 Pipes & Tubes — ASTM A312 TP316 Manufacturer Supplier & Exporter
Amardeep Steel Centre is a major manufacturer, supplier, and exporter of Stainless steel 316 pipes in India. Our SS 316 Pipes are designed as per the rigorous industrial needs and gives a great resistance to corrosion, superior mechanical strength and in full accordance with the ASTM A312 and ASME SA312 norms. Grade 316 stainless steel commonly referred to as marine grade stainless steel, has molybdenum hence it has higher resistance to pitting and crevice corrosion caused by chlorides than grade 304. Our product sales product line consists of 316 stainless steel tubing produced in seamless, ERW welded, EFW, and LSAW in 1/8" NB to 30" NB and in a variety of pressure schedules between SCH 10 and XXS. Besides that, we provide pipes with different surface finishes wherein they are annealed and pickled finished, polished, bright annealed, and passivated depending on the requirements of the application. Whether you require 316 stainless pipe for oil & gas, marine, chemical processing, or pharmaceutical industries, Amardeep Steel ensures consistent quality, fast delivery, and competitive pricing.
What Is Stainless Steel 316 Pipe?
Stainless Steel 316 Pipe is an austenitic, molybdenum-bearing stainless steel pipe grade. The addition of 2–3% molybdenum provides enhanced resistance to pitting corrosion and crevice corrosion, especially in chloride-rich environments such as seawater, brine, and acidic chemical processes.
It is one of the most widely used grades for applications where corrosion resistance and durability are critical.
SS 316 vs SS 304 Pipe — Key Differences:
SS 316 contains 2–3% molybdenum, while SS 304 does not, making SS 316 more suitable for marine and chemical environments. It performs better in acidic and high-chloride conditions and offers improved strength at elevated temperatures.
Additionally, 316 stainless steel tubing is preferred in pharmaceutical and food-grade industries due to its improved cleanability and hygiene properties.
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Stainless Steel 316 Pipes & Tubes Specifications
| Specification | Details |
|---|---|
| Standards | ASTM A 312, ASME SA 312, ASTM A 358, ASME SA 358 |
| Dimensions | ASTM, ASME, and API |
| SS 316 – 316L Pipes (OD) | 1/2" NB – 16" NB |
| ERW 316 – 316L Pipes (OD) | 1/2" NB – 24" NB |
| EFW 316 – 316L Pipes (OD) | 6" NB – 100" NB |
| Overall Size Range | 1/8" NB TO 30" NB (IN) |
| Specialized in | Large Diameter Size |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End Finish | Plain End, Beveled End, Threaded |
Manufacturing Process of SS 316 Pipes
SS 316 Pipes are manufactured using different processes depending on the application:
- Seamless Pipes: Produced using extrusion or rotary piercing for high-pressure applications
- ERW Pipes: Manufactured by electric resistance welding, suitable for general industrial use
- EFW Pipes: Used for large diameter applications with fusion welding
- LSAW Pipes: Longitudinally welded pipes for structural and high-thickness requirements
Each manufacturing method ensures dimensional accuracy and compliance with ASTM standards.
Surface Finish Options for Stainless Steel 316 Pipes
We supply Stainless Steel 316 Pipes with the following finishes:
- Annealed & Pickled (AP)
- Bright Annealed (BA)
- Polished (Mirror Finish)
- Matte Finish
- Passivated Surface
These finishes enhance corrosion resistance and improve surface durability depending on usage conditions.
316 Stainless Steel Pipes & Tubes Chemical Composition
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|---|---|---|---|---|---|---|---|---|---|
|
316 |
0.08 |
2.0 |
0.75 |
0.045 |
0.03 |
18.0 |
3.0 |
14.0 |
0.10 |
Mechanical Properties of Stainless Steel 316 Pipes & Tubes
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
Physical properties of Stainless Steel 316 Pipes & Tubes
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 316 | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
Equivalent Grades of Stainless Steel 316 Pipes & Tubes
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
| BS | En | No | Name | ||||
| 316 | S31600 | 304S11 | 58E | 1.4401 | X5CrNiMo17-12-2 | 2347 | SUS 316 |
Pressure for Stainless Steel 316 Seamless Pipe
| Nominal Pipe Size (NPS) | OD (Inches) | Schedule | Wall Thickness (Inches) | Approx. Max. Working Pressure (PSI) | Approx. Max. Working Pressure (Bar) |
|---|---|---|---|---|---|
| 1/2 | 0.840 | SCH 40S | 0.109 | 3000 | 207 |
| 1/2 | 0.840 | SCH 80S | 0.147 | 4000 | 276 |
| 1 | 1.315 | SCH 40S | 0.133 | 2000 | 138 |
| 1 | 1.315 | SCH 80S | 0.179 | 2800 | 193 |
| 2 | 2.375 | SCH 40S | 0.154 | 1500 | 103 |
| 2 | 2.375 | SCH 80S | 0.218 | 2000 | 138 |
| 4 | 4.500 | SCH 40S | 0.237 | 1000 | 69 |
| 4 | 4.500 | SCH 80S | 0.337 | 1400 | 96 |
| 6 | 6.625 | SCH 40S | 0.280 | 750 | 52 |
| 6 | 6.625 | SCH 80S | 0.432 | 1100 | 76 |
| 10 | 10.750 | SCH 40S | 0.365 | 600 | 41 |
| 10 | 10.750 | SCH 80S | 0.593 | 900 | 62 |
Dimensional Tolerances for Stainless Steel 316 Tubes
| OD (Inches) | Tolerance (Inches) | Tolerance (mm) |
|---|---|---|
| Under 1/2 | +/- 0.015 | +/- 0.38 |
| 1/2 to 1 1/2 | +/- 0.031 | +/- 0.79 |
| Over 1 1/2 to 4 | +/- 0.031 | +/- 0.79 |
| Over 4 to 8 | +/- 0.047 | +/- 1.19 |
| Over 8 to 12 | +/- 0.062 | +/- 1.57 |
| Over 12 to 18 | +/- 0.078 | +/- 1.98 |
| Over 18 to 24 | +/- 0.093 | +/- 2.36 |
| Over 24 to 30 | +/- 0.125 | +/- 3.18 |
Wall Thickness (WT) Tolerances for Stainless Steel 316 Tubes:
| Wall Thickness (WT) | Tolerance (%) |
|---|---|
| All Sizes | +/- 12.5% |
Length Tolerances for Stainless Steel 316 Tubes:
| Length Type | Tolerance |
| Fixed Length | +10 mm / -0 mm |
| Standard Lengths | Single Random, Double Random (as per ASTM A312 / A269) |
Types of 316 Stainless Steel Pipes & Tubes
- ASTM A312 TP316 Seamless Stainless Steel Pipe
- ASTM A312 TP 316 Stainless Steel Welded Pipe
- Hot rolled 316 Stainless Steel Pipe
- High luster 316 Seamless Stainless Steel Pipe
- Bright Finish Seamless Stainless Steel 316 Pipe
- Bright Finish Welded Stainless Steel 316 Pipe
- SS 316 Mirror Polish Seamless Stainless Steel Pipe
- 316 Cold Rolled Seamless Stainless Steel Pipe
- 316 Stainless Steel Rectangular Pipe
- 316 Stainless Steel Rectangular Tube
- Sanitary A312 316 Stainless Steel Pipe
Applications of Stainless Steel 316 Pipes & Tubes
Stainless Steel 316 Pipes are widely used in:
- Marine & Shipbuilding – seawater piping, boat fittings
- Chemical & Pharmaceutical – process piping and storage tanks
- Oil & Gas – offshore and high-corrosion environments
- Food & Beverage – hygienic piping systems
- Architecture – coastal structures and railings
Price of Stainless Steel 316 Pipes in India
The price of Stainless Steel 316 Pipes varies depending on size, schedule, type (seamless or welded), and quantity.
- Approximate price range: ₹280 – ₹420 per kg (indicative, varies with market conditions)
- Seamless pipes are generally higher priced than welded pipes
- Bulk orders and export quantities receive better pricing
For an accurate and updated quotation, contact our sales team.
Why Choose Amardeep Steel for Stainless Steel 316 Pipes?
Manufacturing Excellence: Full control over production quality
Global Exports: Serving USA, UAE, Europe, Southeast Asia
Fast Delivery: Ready stock available for immediate dispatch
Certified Quality: ISO 9001 certified with EN 10204 3.1 MTC
Technical Support: Expert guidance for grade and specifications
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Get Your Stainless Steel 316 Pipes Price
Ready to enhance your project with high-quality Stainless Steel 316 Pipes? Contact Amardeep Steel Centre LLP for a fast, no-obligation quote tailored to your requirements.
FAQ's About Stainless Steel 316 Pipes & Tubes
What is 316 Stainless Steel Pipe?
Stainless Steel 316 Pipe is an austenitic stainless steel grade pipe that has good resistance to chloride ion corrosion stress cracking. For this reason, the pipe is used in marine and sea water applications with ease.
What is the difference between 304 and 316 stainless steel piping?
The key difference between 304 and 316 stainless steel that makes them different is the addition of molybdenum, an alloy that drastically enhances corrosion resistance, especially for more saline or chloride-exposed environments. 316 stainless steel contains molybdenum, but 304 does not.
Is 316 Stainless Steel Pipe magnetic?
In its annealed (softened) state, 316 Stainless Steel Pipe is essentially non-magnetic due to its austenitic structure. However, significant cold working (like bending or heavy forming) can induce slight magnetism.
How can I get a price for 316 Stainless Steel Pipe from Amardeep Steel Centre?
Pricing for ss 316 pipe depends on market conditions, grade (316/316L), type (seamless/welded), dimensions, quantity, and any required processing. The best way to get an accurate quote is to contact our sales team directly via phone, email, or our website's quote request form.