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ASTM A269 / ASME SA269 TP316L Bright Annealed Stainless Steel Tube
The tubing specified in ASTM A269 can be produced through either
the seamless or welded process. Seamless tubing is achieved by
piercing a solid billet and extruding it into a hollow tube, while
welded tubing is made by forming a strip or plate into a tubular
shape and welding the edges together. The tube often has a
smooth surface finish. The standard requires that the tubes be
reasonably straight and free from defects that might affect the
suitability for the intended application. Common surface finishes
include annealed, pickled, or bright annealed.
Specifications
| Specifications | ASTM A/ASME SA213/A249/A269/A312/A358 CL |
| Dimensions | ASTM, ASME and API |
| Schedule | SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS |
| Wall Thickness | Schedule 5S - Schedule XXS. |
| Size - Seamless 316L Pipes & Tubes | 1/2"NB - 24"NB |
| ERW 316L Pipes & Tubes | 1/2"NB - 24"NB |
| EFW 316L Pipes & Tubes | 6"NB - 100"NB |
| Length | Single Random, Double Random & Cut Length |
| Types | Seamless / ERW / Welded |
| Form | Round, Square, Rectangular, Hydraulic Etc |
SS 316L Pipes & Tubes Equivalent Grades
| 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
| 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 |
Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1399 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Physical Properties
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
Food preparation equipment particularly in:
1. chloride environments
2. Fasteners
3. Pharmaceuticals
4. Marine applications
5. Architectural applications
6. Medical implants which comprise pins, screws and orthopedic
implants like total hip and knee replacements.
