ASTM A269 TP316L Polished Stainless Steel Welded Tube
GNEE is a manufacturer of ASTM A269 stainless steel 316L pipes. We provide ASTM A269 TP316L stainless steel pipes manufactured through both welded and seamless processes. The "L" in TP316L indicates its low carbon content, which enhances its corrosion resistance, particularly around weld zones.
The ASTM A269 TP316L polished stainless steel welded pipe is a corrosion-resistant pipe made from low-carbon chromium-nickel-molybdenum stainless steel. It is formed by rolling and welding steel plates or strips, then polished to a specific surface finish. The TP316L welded pipe is a cost-effective alternative to seamless pipes, offering excellent resistance to general corrosion, pitting, and chloride-rich environments. It is suitable for marine, chemical, and food industry applications.
According to the ASTM A269 standard, the commonly provided pipe sizes and thicknesses that comply with this specification feature an inner diameter of 1/4 inch (6.4 mm) and above, with a nominal wall thickness of 0.020 inch (0.51 mm) and above. Custom sizes are also available upon request.

ASTM A269 TP 316L Stainless Steel Tubing Specifications
| Price | USD 3250 – 5200 |
|---|---|
| Standard | ASTM A269 |
| Grade | 316L Stainless Steel |
| Tubing Type | Welded Tubing Seamless Tubing |
| Tubing Form | Coil Tubing Straight Tubing |
| Finishes | Annealing Pickling Bright Annealing |
| Outside Diameter | 6.35 Mm To 127 Mm |
| Thickness | 0.51 Mm To 8 Mm |
Chemical Composition of ASTM A269 TP316L Polished Stainless Steel Welded Tube
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 10.00 - 14.00 | 68.89 min |
Physical Properties of ASTM A269 TP316L Polished Stainless Steel Welded Tube
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec Resistivity (nΩ.m) |
|||
| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 316/L/H | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
Applications
Pharmaceutical & Biotech: Process lines, fermenters, autoclaves, water-for-injection (WFI) systems.
Food & Beverage: Transfer lines for milk, beer, juice, food ingredients, and CIP systems.
Semiconductor: High-purity gas and chemical delivery lines.
Chemical Processing: Instrumentation lines, sample lines, and process connections in corrosive environments.
Medical: Components for medical devices and equipment.
Hydraulic & Pneumatic Lines: For specialized systems requiring corrosion resistance.
Differences from Similar Tubing
vs. ASTM A213 TP316L: A213 covers seamless tubing primarily for boiler, superheater, and heat-exchanger applications (high-temperature pressure service). A269 is for "general service," which includes pressure but also focuses heavily on corrosion resistance.
vs. ASTM A249 TP316L: A249 covers welded tubing for boiler, condenser, and heat-exchanger service. It has more stringent requirements on weld integrity and testing for high-pressure applications compared to A269.
Value-add services
1.Stainless Steel Pipe Polishing
2. Stainless Steel Pipe Beveling
3. Stainless Steel Pipe Honing & Turning
4.Heatreating & Annealing
5.Positive Material Identification (PMI)
Stainless can perform PMI testing in house for most stainless steel grades, or we can work with independent labs to complete PMI in order to meet customer specifications.
6.UT Testing
In some cases, UT testing of the stainless steel pipe may be required. We can assist you with this requirement.


Highest quality packaging and shipping
The package is packed with waterproof paper and steel strapping, which meets the standard export sea freight packaging requirements and is suitable for various modes of transportation or can be customized according to customer requirements.


Customer Visit


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