Chemistry of 317L Austenitic Stainless Steel
317L austentic stainless steel is available in plate, sheet, coils and strips. Chemistry of 317L austentic stainless steel is as follows:
|
|
Ni |
Cr |
Mo |
Mn |
Si |
C |
N |
S |
P |
Fe |
|
MIN |
11.0 |
18.0 |
3.0 |
- |
- |
- |
- |
- |
- |
- |
|
MAX |
15.0 |
20.0 |
4.0 |
2.0 |
0.75 |
0.03 |
0.1 |
0.03 |
0.045 |
Balance |
Quality 317L is a molybdenum containing austenitic stainless steel, with improved corrosion resistance over 304/304L and 316/316L stainless steel. The increased levels of chromium, nickel and molybdenum over 316L stainless steel improve 317L austenitic stainlesss’s chloride pitting resistance and general corrosion. Through the controlled addition of nitrogen it is common for 317L to meet the mechanical properties of 317 straight grade, while maintaining a low carbon content.
Mechanical Properties of 317L:
Ultimate Tensile Strength, ksi: 75
0.2% Yield Strength, ksi: 30
Elongation, %: 40
Hardness MAX, Brinell: 217
Physical Properties of 317L:
Density: 0.285 lb/inch3
Melting Point: 2540 - 2630°F
Poisson's Ratio: 0.3
Electrical Resistivity: 475 Ohm-circ mil/ft
Specifications: ASME SA 240, ASTM A 240, UNS S31703, W. NR./EN 1.4438
Inventory: 317L Coil, 317L Plate, 317L Strips
317L Stainless Steel Features:
Improved general and localized corrosion to 316/316L stainless
Good formability
Good weldability
Applications: 317L austenitic stainless steel plates and strips are mainly used in Flue gas desulfurization systems, Chemical process vessel, Petrochemical, Pulp and paper and Condensers in power generation.