ASTM A312 TP316L Seamless Pipe Specification
SS 316L seamless pipes conform to ASTM A312 / ASME SA312 TP316L for austenitic stainless steel pipe in high-temperature and corrosive-service applications. The table below lists key specifications.
| Property | Details |
|---|---|
| Standard | ASTM A312 / ASME SA312 |
| Nominal Pipe Size | 1/2" NB to 16" NB (seamless) |
| Outer Diameter | 21.3 mm (1/2") to 406.4 mm (16") |
| Wall Thickness | Per schedule: SCH 5S, 10S, 20, 40S, 80S, 120, 160, XXS |
| Length | Single Random (5-7 m), Double Random (9-12 m), Cut Length |
| End Type | Plain End, Beveled End, Threaded End |
| Surface Finish | Mill Finish, Annealed and Pickled (AP), Bright Annealed (BA), Polished |
| Form | Round, Square, Rectangular |
| Dimension Standard | ANSI B36.19 / ANSI B36.10 |
Stainless Steel 316L Seamless Pipe Schedule Chart (NPS 1/2" to 16")
Consult this chart for standard wall thickness and dimensions from ½" to 16".
Wall thickness increases with the schedule number to handle higher pressure ratings. We stock SCH 10S through SCH 160, ensuring suitability for everything from low-pressure utility lines to high-stress process piping.
| NPS | OD (inch / mm) | SCH 10S WT | SCH 40S WT | SCH 80S WT |
|---|---|---|---|---|
| 1/2" | 0.840 / 21.3 | 0.065" | 0.109" | 0.147" |
| 1" | 1.315 / 33.4 | 0.109" | 0.133" | 0.179" |
| 2" | 2.375 / 60.3 | 0.109" | 0.154" | 0.218" |
| 4" | 4.500 / 114.3 | 0.120" | 0.237" | 0.337" |
| 8" | 8.625 / 219.1 | 0.148" | 0.322" | 0.500" |
| 12" | 12.750 / 323.8 | 0.180" | 0.375" | 0.500" |
| 16" | 16.000 / 406.4 | 0.188" | 0.375" | 0.500" |
Stainless Steel 316L Seamless Pipe Weight Chart
Refer to the following table for the theoretical weight of SS 316L seamless pipes.Pipe weight varies by outer diameter, wall thickness, and schedule. A 1" NB SCH 40S 316L seamless pipe weighs approximately 2.50 kg/m (1.68 lb/ft), while a 4" NB SCH 40S pipe weighs around 9.56 kg/m (6.42 lb/ft).
| NPS | SCH 10S (kg/m) | SCH 40S (kg/m) | SCH 80S (kg/m) |
|---|---|---|---|
| 1/2" | 0.8 | 1.27 | 1.62 |
| 1" | 2.09 | 2.5 | 3.24 |
| 2" | 3.93 | 5.44 | 7.48 |
| 4" | 8.63 | 16.07 | 22.32 |
| 8" | 20.06 | 42.55 | 64.64 |
| 12" | 36.84 | 75.3 | 99.48 |
| 16" | 47.16 | 93.2 | 123.3 |
Stainless Steel 316L Seamless Pipe Price List
SS 316L seamless pipe prices in India range from approximately ₹350 to ₹550 per kg and $1.20 to $5.00 per kilogram (in the US), depending on outer diameter, wall thickness, schedule, quantity, and surface finish. Seamless pipes carry a premium over welded equivalents, and polished finishes add 10–20% over mill finish pricing. Raw material costs on the LME directly influence rates, so prices don't stay fixed for long. Contact Sachiya Steel International for a current quote.
Stainless Steel 316L Seamless Pipe Chemical Composition
Alloy 316L (UNS S31603) chemical composition per ASTM A312/ASME SA312 is listed below.
Stainless Steel 316L Seamless Pipe Mechanical Properties
The table below shows minimum mechanical property values for Grade 316L seamless pipe per ASTM A312/ASME SA312.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength (min) | 515 | MPa (75 ksi) |
| Yield Strength (min) | 205 | MPa (30 ksi) |
| Elongation (min) | 35 | % |
Stainless Steel 316L Seamless Pipe Equivalent Designations
International buyers often reference different standard designations for the same 316L alloy. Below is a cross-reference table for procurement.
| Standard / Country | Designation |
|---|---|
| UNS | S31603 |
| European Union (EN) | X2CrNiMo17-12-2 |
| Japan (JIS) | SUS 316L |
| China (GB) | 022Cr17Ni12Mo2 |
| France (AFNOR) | Z2CND17-12 |
| United Kingdom (BS) | 316S11 |
| Sweden (SS) | SS 2348 |
| Russia (GOST) | 03Kh17N14M2 |
Stainless Steel 316L Seamless Pipe Industrial Applications
SS 316L smls pipes serve major industry sectors where corrosion resistance, weldability, and pressure integrity are non-negotiable. Below are the primary applications. The following are examples of those industries which widely use SS 316L smls pipe.
Chemical and Petrochemical Industry
Transports acids and solvents in reactors and heat exchangers using molybdenum to resist pitting.
Pharmaceutical and Food Processing
The sanitary piping and orbital welding standard must satisfy the stringent FDA sanitation requirements.
Marine and Offshore Applications
Pitting-resistant 316L SS seamless pipe is needed in chloride-laden seawater. This grade provides long-term structural integrity to offshore platforms, desalination facilities, and shipboard pipe.
Oil and Gas Piping Systems
High-pressure process lines and downhole tubing in sour-service conditions use ASTM A312 TP316L seamless pipes. The grade handles temperatures up to 870°C (1600°F) in continuous service.
Shipping & Packaging
Heavy-duty wooden boxes Packing
We strictly follow seaworthy export handling standards to protect SS 316L seamless pipe from transit damage, moisture ingress, and surface contamination during long-distance dispatch.
- Heavy-duty wooden boxes with moisture barrier lining
- HDPE stretch film wrapping on all bundles
- Plastic end caps on threaded and plain-end pipes
- Silica gel desiccants to minimize moisture exposure
- ISPM-15 fumigated wooden packaging for export
Pipe Bundle Yard Staging
Container End-Cap Protection
Wrapped Export-Ready Bundles
We Export Worldwide
Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.
USA
Canada
Germany
UK
Italy
France
Australia
South Korea
Indonesia
Vietnam
Singapore
Malaysia
Taiwan
UAE
Saudi Arabia
Qatar
Oman
South Africa
Nigeria
Egypt