ASTM A312 TP316L Pipe dimensions
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For procurement professionals sourcing stainless steel 316L pipes, understanding the ASTM A312 TP316L standard and pipe dimensions is critical for accurate specification, cost estimation, and project planning. This guide provides detailed industry knowledge, dimension tables, and common questions to help buyers make informed decisions.
🔹What is ASTM A312 TP316L stainless steel pipe?
ASTM A312 TP316L is a widely used specification for seamless and welded austenitic stainless steel pipes, made from 316L stainless steel. It offers excellent corrosion resistance, especially in chloride and marine environments, and exhibits superior resistance to intergranular corrosion after welding. It can be used continuously at temperatures up to 925°C (1700°F).
The ASTM A312 standard covers seamless and welded pipes in various sizes and wall thicknesses, suitable for industries such as chemical, petrochemical, food, and pharmaceutical.
🔹What are the differences between TP316 and TP316L pipes?
The main differences between TP316 and TP316L pipes lie in their carbon content, welding performance, and corrosion resistance. TP316L is an ultra-low carbon version (carbon content ≤ 0.03%), offering better resistance to intergranular corrosion after welding and is suitable for applications where post-weld heat treatment is not required. TP316 has a slightly higher carbon content (≤ 0.08%) and slightly higher strength.
🔹 ASTM A312 TP316L Pipe Dimensions Standard Chart
1. Seamless & Welded Pipe Dimensions (ASME / ASTM Standard)
| Nominal Pipe Size (NPS) | Outside Diameter (OD) mm | Schedule 5S mm | Schedule 10S mm | Schedule 40S mm | Schedule 80S mm |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 2.77 | 2.77 | 2.77 | 3.91 |
| 3/4" | 26.7 | 2.77 | 2.87 | 3.38 | 4.55 |
| 1" | 33.4 | 2.87 | 3.38 | 3.56 | 4.55 |
| 1 1/4" | 42.2 | 3.38 | 3.56 | 4.55 | 5.16 |
| 1 1/2" | 48.3 | 3.38 | 3.56 | 4.55 | 5.16 |
| 2" | 60.3 | 3.38 | 3.56 | 4.55 | 5.16 |
| 2 1/2" | 73.0 | 3.91 | 4.19 | 5.16 | 6.02 |
| 3" | 88.9 | 3.91 | 4.19 | 5.16 | 6.02 |
| 4" | 114.3 | 4.19 | 4.55 | 6.02 | 7.11 |
| 6" | 168.3 | 4.55 | 4.85 | 6.35 | 7.62 |
| 8" | 219.1 | 4.85 | 5.16 | 6.35 | 9.27 |
| 10" | 273.0 | 5.16 | 5.49 | 7.11 | 9.27 |
| 12" | 323.9 | 5.49 | 5.74 | 7.62 | 11.13 |
🔧 Note: OD = Outside Diameter, all dimensions approximate, schedule = wall thickness standard. Verify with supplier for precise tolerance.
🔹Can ASTM A312 TP316L pipes be used for high-pressure applications?
Yes, provided that the pipe wall thickness (pipe schedule) matches the design pressure. Schedule 80S or higher pipes are recommended for high-pressure systems.
🔹How to calculate the weight per meter of TP316L stainless steel pipe?
Weight per meter = 0.02466 × (Outer Diameter – Wall Thickness) × Wall Thickness × Density (the density of 316L stainless steel is 7.99 g/cm³). Please verify with your supplier to ensure calculation accuracy.
2. Weight Per Meter (Approx.)
| NPS | Schedule 40S kg/m | Schedule 80S kg/m |
| 1/2" | 1.21 | 1.71 |
| 3/4" | 1.68 | 2.38 |
| 1" | 2.27 | 3.14 |
| 1 1/4" | 3.36 | 4.57 |
| 1 1/2" | 4.05 | 5.49 |
| 2" | 5.42 | 7.32 |
| 2 1/2" | 7.67 | 10.22 |
| 3" | 9.42 | 12.60 |
| 4" | 14.85 | 22.00 |
| 6" | 26.67 | 35.00 |
| 8" | 39.50 | 55.00 |
| 10" | 55.00 | 75.00 |
| 12" | 72.00 | 105.00 |
🔹 Factors Affecting ASTM A312 TP316L Pipe Selection
Pressure Rating – Wall thickness (schedule) must match system design pressure.
Temperature – Ensure 316L service temperature is within standard limits.
Corrosion Environment – For high chloride or chemical exposure, 316L is preferred over 304/304L.
Seamless vs Welded – Seamless pipes offer better pressure and fatigue resistance, welded pipes are cost-effective for larger diameters.
Surface Finish – Pickled, 2B, or bright annealed finish affects cost and application suitability.
🔹Stainless Steel 316L Tube Chemical Composition Standard
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 316L | .035 | 2.00 | .045 | .030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
🔹SS Grade F316L Tubes Mechanical Strength
| Grade | Tensile | ||||
|---|---|---|---|---|---|
| Ultimate/Min | Yield/Min | Elongation/Min | |||
| KSI | MPA | KSI | MPA | % | |
| 316L | 70 | 485 | 25 | 170 | 35 |
🔹Physical Component of 150# ANSI SS 316L Seamless 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) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 316L | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
Ss316l Pipe Price
|
316L Pipe Price Per Kg |
US $950 - $1,250 per ton |
|
2 inch ss 316l seamless pipe |
US $2,300 - $3,600 per ton |
|
3 inch a312 tp316l seamless pipe |
US $750 and $2,500 per ton |
|
1 2 ASME sa312 tp316l |
US $1.35 - $2.50 per kilogram |
Click to get the latest price for 316L pipe
🔹TP316L Stainless Steel Pipe Suppliers and Manufacturers
GNEE is a renowned one-stop service provider, stockist, and exporter of stainless steel materials. We have over 18 years of export experience. We supply not only pipes, plates, and round bars, but also pipe fittings, flanges, and other products. Contact us for free customized size and pricing information.
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