ASTM A269 316L Stainless Steel Boiler Tube for General Corrosion-Resisting Service
ASTM A269 316L Stainless Steel Boiler Tube
ASTM A269 316L stainless steel boiler tube is a seamless tube made from high-quality 316L stainless steel, which is a low carbon version of 316 stainless steel. This grade of stainless steel is highly corrosion resistant and has excellent mechanical properties, making it ideal for use in boiler applications.
These tubes are typically used in high-pressure and high-temperature boiler systems, where they are exposed to harsh operating conditions. The ASTM A269 specification covers seamless and welded austenitic stainless steel tubing for general corrosion-resisting and low or high-temperature service.
The 316L stainless steel boiler tubes are available in various sizes and thicknesses to meet the specific requirements of different boiler systems. They are also available in different finishes, such as annealed and pickled, polished, or bright annealed, to suit various applications.
ASTM A269 316L stainless steel boiler tubes are known for their durability, corrosion resistance, and high performance in demanding boiler applications. They are widely used in industries such as power generation, chemical processing, and petrochemical industries.
Chemical Composition of ASTM A269 TP316L Stainless Steel Seamless Tubes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 316 | Min | - | - | - | 0 | - | 16.0 | 2.00 | 10.0 | - |
| Max | 0.08 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
| 316L | Min | - | - | - | - | - | 16.0 | 2.00 | 10.0 | - |
| Max | 0.03 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
| 316H | Min | 0.04 | 0.04 | 0 | - | - | 16.0 | 2.00 | 10.0 | - |
| max | 0.10 | 0.10 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | - |
Mechanical Properties of ASTM A269 TP316L Stainless Steel Seamless Tubes
| Grade | Tensile Str (MPa) min |
Yield Str 0.2% Proof (MPa) min |
Elong (% in 50mm) min |
Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
| 316H | 515 | 205 | 40 | 95 | 217 |
ASTM A269 TP316L Stainless Steel Seamless Tubes 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) |
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| 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 |
grade Specification Comparison for ASTM A269 TP316L Stainless Steel Seamless Tubes
| Grade | UNS No | Old British | Euronorm | Swedish SS |
Japanese JIS |
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| BS | En | No | Name | ||||
| 316 | S31600 | 316S31 | 58H, 58J | 1.4401 | X5CrNiMo17-12-2 | 2347 | SUS 316 |
| 316L | S31603 | 316S11 | - | 1.4404 | X2CrNiMo17-12-2 | 2348 | SUS 316L |
| 316H | S31609 | 316S51 | - | - | - | - | - |
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