| Element | % by Mass |
|---|---|
| C | ≤0.035 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Si | ≤1.00 |
| Cr | 16.0-18.0 |
| Ni | 10.0-14.0 |
| Mo | 2.00-3.00 |
*For product analysis of ASTM A213 TP316L.
| Tensile & Hardness Tests | Requirements |
|---|---|
| Tensile Strength min. MPa [ksi] |
485 [70] |
| Yield Strength min. MPa [ksi] |
170 [25] |
| Elongation in 2", min. % |
35 |
| Brinell Hardness max. HBW |
192 |
| Vickers Hardness max. HV |
200 |
| Rockwell Hardness max. HRB |
90 |
*Tensile & hardness requirements for ASTM A213 TP316L tubing.
Similar to the production process of ASTM A213 TP316Ti seamless tubing, TP316L seamless tubing shall be made by the seamless process and shall be either hot finished or cold finished. The tubes shall be furnished with solution annealing heat treatment: the tubing shall be soaked in furnace at the minimum temperature 1900°F [1040°C] for long enough period to achieve full austenitization. It shall be subsequently quenched in cold water. The ASTM A213 TP316L tubing may be furnished in several delivery conditions depending on clients’ requirements: solution annealed and pickled; solution annealed, pickled and then polished; bright annealed.
| ASME Boiler & Pressure Vessel Codes | ||
|---|---|---|
| Table | Section | Max. Temperature |
| Table 1A | I | 850°F |
| III - Cl.2 & 3 | 800°F | |
| VIII - Div.1 | 850°F | |
| Table 2A | III Div.1 Cl.1 & MC | 800°F |
| VIII Div.2 Cl.1 | 800°F | |
| Table 5A | VIII Div.2 | 800°F |
| Table 6A | IV | 500°F |
*The application of ASTM A213/ ASME SA-213 TP316L seamless tubing in ASME Boiler & Pressure Vessel Codes and the maximum temperature limits, according to ASME BPVC Section II Part D.
In addition, both ASME B31.1 – Power Piping and ASME B31.3 – Process Piping have endorsed the use of ASTM A213 TP316L seamless tubing. ASME B31.1 has specified the lower and upper design temperature limits as 100°F and 1200°F, respectively. ASME B31.3 has specified the minimum design temperature without impact testing requirement and the maximum design temperature as -425°F and 1500°F. Although the Codes permit the use of TP316L tubing at higher temperatures, it is always used for services below 425°C [800°F] in practice.
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