Weston Stainless, based in Midland, UK, is a trusted supplier of high-quality stainless steel products, serving industries like oil & gas, petrochemicals, marine, and construction. With a commitment to precision and durability, Weston Stainless provides corrosion-resistant solutions that meet international standards. Among its offerings, Stainless Steel 317 Nuts are widely used for their superior strength and resistance to acidic environments. Made from molybdenum-bearing austenitic stainless steel, these nuts offer excellent corrosion resistance and durability. Available in various shapes such as hex nuts, lock nuts, and heavy hex nuts, they ensure secure and reliable fastening in demanding industrial applications.
Stainless Steel 317 Nuts are composed of iron, chromium (18-20%), nickel (11-15%), molybdenum (3-4%), and low carbon content, enhancing corrosion resistance and strength. These nuts exhibit excellent mechanical properties, with a tensile strength of approximately 620 MPa, yield strength of 275 MPa, and elongation of 35%. Their physical properties include a density of 7.9 g/cm³ and a melting point of 1370-1400°C. With superior resistance to pitting, crevice corrosion, and oxidation, these nuts provide durability and reliability, making them ideal for high-temperature and high-pressure fastening in critical industrial environments.
| Material | Specification | Standards | Size | Length |
| Stainless Steel 317 Nuts | IS BS ASTM | ASTM / ASME – A/ SA 193 | 3 mm to 200 mm | M02 to M33 |
| 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 | – |
| 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 | – |
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High-strength, corrosion-resistant fasteners made from molybdenum-bearing stainless steel, offering excellent durability, oxidation resistance, and reliability for industrial and high-temperature applications.
Corrosion-resistant fasteners with a secure locking mechanism, offering excellent strength, durability, and resistance to vibration in industrial and high-temperature applications.
Corrosion-resistant fasteners with an integrated flange, providing secure locking, excellent strength, and durability for industrial, marine, and high-temperature applications.
High-strength, corrosion-resistant fasteners with a larger hexagonal shape, providing excellent durability, secure fastening, and reliability for industrial and high-temperature applications.
Stainless Steel 317 Nuts come with essential test certificates, including Mill Test Certificates (MTC), third-party inspection reports, and compliance certificates like EN 10204 3.1/3.2, ensuring quality and authenticity. They are securely packaged in wooden crates, cartons, or bubble-wrapped bundles to prevent damage during transit. Proper labeling ensures traceability. Delivery is prompt via air, sea, or road transport, ensuring safe and efficient shipment to industries worldwide.
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