Stainless Steel 317L is a highly corrosion-resistant, low-carbon austenitic stainless steel grade and comparable to 304 and 316L stainless steel grades. and comparable to 304 and 316 stainless steel grades. Stainless Steel 317L is made of high levels of molybdenum and chromium which provide it with durability and resistance to chemical pitting and cracking. The low amount of carbon ensures minimal carbide precipitation when it is being welded. SS 317L has high strength, good toughness, formability, and good performance at low and high temperatures. It finds applications in chemical processing equipment, pulp and paper manufacturing, marine hardware, scrubbers, reactors, tanks, and pollution control equipment. Lakshya International supplies high-quality Stainless Steel 317L products in sheets, plates, bars, flanges, fittings, structural products and more for various industrial applications.
Chemical Composition of SS 317L
|
Element |
Min (%) |
Max (%) |
|
Carbon |
0.000 |
0.080 |
|
Manganese |
0.000 |
2.000 |
|
Phosphorus |
0.000 |
0.045 |
|
Sulphur |
0.000 |
0.030 |
|
Silicon |
0.000 |
0.750 |
|
Chromium |
16.000 |
18.000 |
|
Nickel |
10.000 |
14.000 |
|
Molybdenum |
2.000 |
3.000 |
|
Nitrogen |
0.000 |
0.100 |
|
Iron |
Remainder |
Remainder |
AISI 317L Stainless Steel Mechanical Properties
|
Property |
Value |
|
Yield 0.2 % (ksi/Mpa), Min |
205 |
|
Tensile (ksi/Mpa), Min |
515 |
|
Elongation (% in 50mm), Min |
35 |
|
Reduction in Area, % |
50 |
|
Hardness (HB), Max |
219 |
Physical Properties of Stainless Steel 317L
|
Parameter |
Value |
|
Density (kg/m³) |
8000 |
|
Elastic Modulus (GPa) |
200 |
|
Co-efficient of Expansion (µm/m/°C) |
16.5 |
|
Thermal Conductivity (W/m·K) |
14.4 |
|
Electric Resistivity (nΩ·m) |
790 |
UNS S31700 SS 317L Equivalent Grades
|
AISI |
UNS |
BS |
DIN EN |
EN Name |
AFNOR |
JIS |
|
317 |
S31700 |
317S16 |
1.4449 |
X5CrNiMo 17 13 |
Z4CND19.13M |
SUS Y317 |
Different Types of Stainless Steel 317L Products
Stainless Steel 317L Flanges
Stainless Steel 317L Rod/Bar
Stainless Steel 317L Hex Bar
Stainless steel 317L Square Bar
Stainless Steel 317L Plates/Sheet
Stainless steel 317L channels
Stainless steel 317L H Beam
Stainless steel 317L I Beam
Stainless steel 317L fittings
Stainless Steel 317L Components
Contact Lakshya International for competitive pricing and quick delivery on all Stainless Steel 317L plates, bars, and fittings. Request a quote now.
Quality Testing of Stainless Steel 317L Products
- Hardness Testing
Material hardness is evaluated to test its strength and ability to be used under tough conditions in industry applications. - Flaring and Flattening Testing
Tests of flaring and flattening are done to make sure that pipes and tubes can undergo these operations without cracking or defects. - Micro and Macro Testing
Microscopic and macroscopic testing procedures are done to assess the quality and material structure and consistency. - Positive Material Identification (PMI)
PMI testing is done to evaluate the precise chemical content of the product to ensure the right Stainless Steel 317L grade is provided. - Intergranular Corrosion (IGC) Testing
IGC testing is carried out to confirm corrosion resistance along the grain boundaries after exposure to heat or welding. - Third Party Inspection
Independent third party inspection services are provided for quality assurance, dimension checking, and other specified criteria.
Application Usage of Stainless Steel 317L
- Air Pollution Control – Flue Gas Desulfurization Systems (FGD)
- Chemical & Fertilizer Industries
- Petroleum – Oil & Gas Industries
- Pharmaceutical Industry
- Food Processing Industry
- Condensers in Power Generation
- Paper & Pulp Industry
Frequently Asked Questions:
What is Stainless Steel 317L?
Stainless Steel 317L is a low-carbon austenitic stainless steel with added molybdenum for better corrosion resistance.
What is the difference between 317L and 316L stainless steel?
317L has higher molybdenum content than 316L, giving it better pitting and crevice corrosion resistance.
Is Stainless Steel 317L better than 316L?
Yes, for harsher chemical and chloride environments, 317L usually performs better than 316L.
Is Stainless Steel 317L corrosion-resistant?
Yes, it has excellent resistance to corrosion, especially in aggressive chemical environments.
What is the UNS number of Stainless Steel 317L?
The UNS number of Stainless Steel 317L is S31703.
Can SS 317L be welded?
Yes, SS 317L can be easily welded, and its low carbon content helps reduce weld corrosion.
