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ASTM A269 TP316L Polished Stainless Steel Welded Tube Welded Austenitic Steel Tubing

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ASTM A269 TP316L Polished Stainless Steel Welded Tube Welded Austenitic Steel Tubing

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Brand Name :YUHONG
Model Number :ASTM A269 TP316L Stainless Steel Welded Tube
Certification :ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :CHINA
MOQ :500KGS
Payment Terms :L/C,T/T
Delivery Time :7 DAYS
Packaging Details :Ply-wooden Case/ Bundle with plastic Cap
Product Name :Stainless Steel Welded Tube
Standard :ASTM A269, ASME SA269
Material :TP304/304L/304H, TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L
OD :1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
Length :Single Random, Double Random & Cut Length
End :Plain End, Beveled End
Type :Seamless, Welded
Surface :Polished, Pickled, Bright Annealed
Application :Heating, Cooling, Instrumentation, Food processing machine,
High Light :ASTM A269 TP316L Stainless Steel Welded Tube, Stainless Steel Polished Tube
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ASTM A269 / ASME SA269 TP316L Polished Austenitic Stainless Steel Welded Tube

ASTM A269 specifies the requirements for seamless and welded austenitic stainless steel 304/ 304L/ 316L/ ... / 317/ 321/ 347 tubing intended for general corrosive service, which commonly used in piping and plumbing applications.

Tube Manufacturing & Process:

  • Welded Construction: Formed from flat-rolled stainless steel strip/sheet, longitudinally welded (TIG, laser, or plasma welding).

  • Polished Finish: Surface is mechanically polished (e.g., #4 brushed, mirror, or electropolished) to improve:

    • Hygiene: Reduces bacterial adhesion (critical for food, pharma, and medical applications).

    • Aesthetics: Smooth, reflective appearance.

    • Corrosion Resistance: Minimizes surface defects that could trap contaminants.

Equivalent Grades of ASTM A269 TP316L Polished Stainless Steel Welded Tube

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 316L 1.4404 / 1.4435 S31603 SUS 316L 316S11 / 316S13 03Ch17N14M3 / 03Ch17N14M2 Z3CND17‐11‐02 / Z3CND18‐14‐03 X2CrNiMo17-12-2 / X2CrNiMo18-14-3


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

Comparison with Other Standards

1. ASTM A312
Purpose: Similar to ASTM A269, ASTM A312 covers both seamless and welded austenitic stainless steel pipes but is specifically intended for high-pressure applications.
Grades: Includes similar grades as A269 but also specifies additional requirements for pressure applications.
Usage: A312 is generally used in situations requiring higher mechanical strength and pressure ratings.
2. ASTM A511
Purpose: While ASTM A269 is primarily for tubing in various services, ASTM A511 is focused on seamless stainless steel tubing for mechanical applications.
Differences: A511 typically includes stricter mechanical properties and dimensions since it's intended for specific mechanical applications.
3. ASTM A554
Purpose: This specification is for welded stainless steel tubing intended for mechanical and structural applications, with a strong emphasis on aesthetic appearance.
Grades: Generally covers lower grades of stainless steel than those in A269 and is often used in decorative applications like railings and furniture.
4. ASTM A249
Purpose: Focused on stainless steel tubing for heat exchangers, condenser, and similar applications.
Standards: A249 places more emphasis on mechanical properties, weld performance, and achieving a suitable surface finish for heat transfer applications.


Applications

  • Pharmaceutical/Biotech: Clean-in-place (CIP) systems, process piping.

  • Food & Beverage: Sanitary tubing, dairy processing.

  • Chemical Processing: Acid/caustic fluid transfer.

  • Marine/Coastal: Saltwater-exposed components.

  • Medical Devices: Implants, surgical instruments (post-processing may be required).

ASTM A269 TP316L Polished Stainless Steel Welded Tube Welded Austenitic Steel Tubing

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