316L(UNS S31603)
General Properties
Alloys 316 (UNS S31600), 316L (S31603), and 317L (S31703) are molybdenum-bearing austenitic stainless steels which are more resistant to general corrosion and pitting/crevice corrosion than the conventional chromium-nickel austenitic stainless steels such as Alloy 304. These alloys also offer higher creep, stress-to-rupture, and tensile strength at elevated temperature. Alloy 317L containing 3 to 4% molybdenum is preferred to Alloys 316 or 316L which contain 2 to 3% molybdenum in applications requiring enhanced pitting and general corrosion resistance.
In addition to excellent corrosion resistance and strength properties, the Alloys 316, 316L, and 317L Cr-Ni-Mo alloys also provide the excellent fabricability and formability which are typical of the austenitic stainless steels.
Product form: sheet, pipe, bar, coil. Size can be offered according to customers' requirement.
Composition:
Chemical composition as represented by ASTM A240 and ASME SA-240 specifications are indicated in the table below.
| Percentage by Weight (maximum unless range is specified) | |||
| Element | Alloy 316 | Alloy 316L | Alloy 317L |
| Carbon | 0.08 | 0.030 | 0.030 |
| Manganese | 2.00 | 2.00 | 2.00 |
| Silicon | 0.75 | 0.75 | 0.75 |
| Chromium | 16.00 18.00 |
16.00 18.00 |
18.00 20.00 |
| Nickel | 10.00 14.00 |
10.00 14.00 |
11.00 15.00 |
| Molybdenum | 2.00 3.00 |
2.00 3.00 |
3.00 4.00 |
| Phosphorus | 0.045 | 0.045 | 0.045 |
| Sulfur | 0.030 | 0.030 | 0.030 |
| Nitrogen | 0.10 | 0.10 | 0.10 |
| Iron | Balance | Balance | Balance |
Product forms: pipe. tube, sheet, coil, round bar