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Mira Fasteners is a prominent manufacturer and supplier of premium Stainless Steel 317/317L Bolts. Our products are made with precision and expertise, adhering to industry standards. We take pride in delivering stainless steel bolts that offer exceptional quality and durability, ensuring they meet the rigorous demands of various applications. Committed to excellence, we ensure that every bolt is manufactured to the highest specifications, providing reliable and long-lasting performance for our valued customers.
Stainless Steel 317 and 317L bolts are top-notch fasteners crafted for situations that demand exceptional corrosion resistance, particularly in chemical and high-temperature settings. These bolts are made from austenitic stainless steel alloys that boast a higher molybdenum content compared to standard 316, which gives them an edge against pitting, crevice corrosion, and chemical attacks, especially in acidic or chloride-heavy environments. The 317L variant is the low-carbon version of 317, which enhances its weldability and resistance to intergranular corrosion after welding, making it a great choice for scenarios where post-weld heat treatment isn’t an option.
| 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 Bolts
| IS BS ASTM | ASTM / ASME – A/ SA 193 | 3 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.
Both 317 and 317L stainless steel bolts showcase impressive mechanical strength and oxidation resistance, with 317L being slightly less strong but offering better corrosion resistance in areas affected by welding. These bolts can typically withstand temperatures up to 870°C (1600°F) and perform reliably in environments that involve sulfuric, acetic, formic, and tartaric acids. Their durability and resistance to stress corrosion cracking make them perfect for aggressive chemical processing, food and beverage production, petrochemical facilities, marine settings, and the pharmaceutical industry.
You’ll often find Stainless Steel 317/317L bolts in heat exchangers, condensers, pulp and paper equipment, flue gas scrubbers, and other critical applications where exposure to corrosive elements is a regular occurrence. Their long lifespan, low maintenance needs, and resistance to a wide array of corrosive agents make them a trusted choice for engineers and industries that require strong and corrosion-resistant fasteners.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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