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Rinku Fasteners has made a name for itself as a leading manufacturer and supplier of top-notch Stainless Steel 317/317L Washers, proudly based in Kolkata, India. The company is well-known for providing durable and precision-engineered fastening solutions that cater to the diverse needs of various industrial sectors. Their SS 317/317L washers are celebrated for their exceptional corrosion resistance, outstanding performance in acidic and chloride-rich environments, and long-lasting reliability even in tough operating conditions. With cutting-edge manufacturing capabilities, rigorous quality control, and a commitment to international standards, Rinku Fasteners consistently delivers products that go above and beyond customer expectations. Their unwavering dedication to excellence and customer satisfaction has established them as a trusted name in the fastener industry.
Stainless Steel 317/317L Washers are crafted from molybdenum-bearing austenitic stainless steels, which boast higher levels of chromium and nickel for enhanced corrosion resistance. The 317L grade, in particular, has a lower carbon content, making it more weldable and resistant to sensitization. These washers showcase impressive mechanical properties, including high tensile strength, good ductility, and exceptional resistance to pitting, crevice corrosion, and chemical attack. Their strong microstructure ensures stability even at elevated temperatures and in corrosive environments, making them ideal for demanding industrial applications that require both durability and chemical resistance.
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
| SS 317 | 0.08 max. | 2.00 max. | 1.00 max. | 0.045 max. | 0.03 max. | 18.0 – 20.0 | 11.0 – 14.0 | 3.0 – 4.0 | – |
| SS 317L | 0.03 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 18.0 – 20.0 | 11.0 – 15.0 | 3.0 – 4.0 | 0.1 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 317 | 620 MPa | 275 MPa | 45% | 85 | 193 |
| 317L | 595 MPa | 260 MPa | 55% | 85 | 200 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 317 / 317L Washers
|
IS
BS
ASTM
|
ASTM / ASME – A/ SA 193 |
3 mm
to
200 mm
|
M02 to M33
|
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 317/317L Washers find their place in a variety of industries that demand superior corrosion resistance and dependable performance in harsh conditions. They’re commonly used in chemical processing plants, petrochemical systems, pharmaceutical equipment, and the pulp and paper industry, thanks to their ability to withstand acidic and chloride-based media. Additionally, these washers are utilized in marine applications, food processing machinery, and pollution control equipment, where reliability and durability are crucial.
We ensure the highest quality for our Stainless Steel 317/317L Washers through rigorous testing, including Hardness, Chemical Analysis, Positive Material Identification (PMI), Flattening, Micro and Macro Tests, Pitting Resistance, Flaring, and Intergranular Corrosion (IGC) Tests. Each product is accompanied by detailed documentation, such as a commercial invoice, packaging list, Certificate of Origin, and a Guarantee Letter. Third Party Inspection Certificates are also provided to affirm our commitment to industry-leading standards.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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