1. Features
1) The cold-rolled product has a good gloss and a beautiful appearance;
2) Good processing performance;
3) 316L stainless steel has good welding performance. All standard welding methods can be used for welding. During welding, 316Cb, 316L, or 309Cb stainless steel filler rods or welding rods can be used according to the application. 316L stainless steel does not require post-weld annealing treatment;
4) Pitting corrosion resistance, especially excellent high-temperature strength, and excellent intergranular corrosion resistance; due to the molybdenum in the steel, the overall performance of this steel is better than 310 and 304 stainless steel. Under high-temperature conditions, when the concentration of sulfuric acid is lower than 15% and above 85%, 316L stainless steel has a wide range of uses. 316L stainless steel also has good chloride corrosion properties, so it is usually used in marine environments.
5) The solid solution state is non-magnetic;
6) Compared with 304 stainless steel, the price is higher. …
2. Scope of Application
Boiler pipes, marine structures, food, heat exchangers, chemicals, film washing equipment, dyeing, papermaking equipment, and other corrosion-resistant environment use, and exterior materials for buildings in coastal areas;
3. Chemical Composition (JIS G 4305-2005) (wt%)
| Chemical Composition | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| Standard | ￡0.03 | ￡1.00 | ￡2.00 | ￡0.045 | ￡0.030 | 16.0~18.0 | 12.0~15.0 | 2.0~3.0 |
| General | 0.025 | 0.6 | 0.7 | 0.025 | 0.003 | 17.40 | 12.1 | 2.1 |
ASTM standard: 316L Ni content range: 10.0~14.0%
4. Performance (JIS G 4305-2005)
Distinguish | Mechanical properties | ||||
Ys (Mpa) | Ts (Mpa) | El (%) | Hv | Remark | |
Standard | ≥ 175 | ≥ 480 | ≥ 40 | ≤ 200 | 2B/1.0t |
General | 290 | 610 | 53 | 150 | |
5. Physical Properties
Density (g/cm3) | Magnetic | Resistance (10-6.W.cm) | Specific heat 250C(J/kg.0C) | Thermal conductivity 1000C(W/m. 0C) | Thermal expansion rate 20~1000C(10-6/0C) | Young’s modulus 200C (Gpa) |
7.98 | No | 76.98 | 500 | 15.21 | 16.0 | 195 |
6. Heat Treatment
Melt point: 1375~145000C;
Solution treatment: 1010~115000C.
7. Use Status
1) Annealing and solid solution state:
No. 1, 2B, N0.4, HL, and other surface states.
8. Precautions for Use
The cold-forming ability is not as good as SUS304;
It is usually used in the general Cl environment, which can effectively prevent pitting corrosion.