Lecong Stainless is a well-respected manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 317 Nuts. These nuts are crafted for industries that require exceptional corrosion resistance and durability. With a higher molybdenum content than standard grades, they offer outstanding protection against pitting, crevice corrosion, and chemical attacks in tough environments. Lecong Stainless is committed to precise manufacturing and follows international standards closely, ensuring that their products deliver quality, strength, and a long lifespan. As a result, Stainless Steel 317 Nuts are a popular choice in chemical, marine, and industrial applications, making Lecong Stainless a reliable partner for stainless steel fasteners both in Vietnam and around the world.
These Stainless Steel 317 Nuts consist of 18–20% chromium, 11–15% nickel, and 3–4% molybdenum, along with carefully controlled levels of carbon, manganese, and silicon to boost strength and toughness. This high-alloy mix provides excellent corrosion resistance, especially in chloride-rich and acidic settings. They boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 35–40%. The added molybdenum enhances resistance to localized corrosion and bolsters overall durability, making these nuts a trustworthy choice for challenging chemical and marine 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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A corrosion-resistant product, Stainless Steel 317 nuts come in sizes from M6 to M64. They are designed for superior resistance to marine and chemical environments, providing reliability and durability in aggressive conditions.
A corrosion-resistant product, Stainless Steel 317 coupling nuts, available in sizes from M6 to M36, connect two male threads securely. Their high resistance to pitting and chloride environments makes them suitable for harsh industrial applications.
A corrosion-resistant product, Stainless Steel 317 nylon insert nuts, or lock nuts, come in sizes from M3 to M36. The nylon insert prevents loosening due to vibration, while the stainless steel offers excellent resistance to corrosion in marine and chemical environments.
A corrosion-resistant product, Stainless Steel 317 flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They provide superior load distribution and stability in corrosive and marine environments.
A corrosion-resistant product, Stainless Steel 317 heavy hex nuts are available in sizes from M10 to M48. Their increased thickness offers enhanced strength and durability, making them ideal for heavy-duty applications in aggressive environments.
A corrosion-resistant product, Stainless Steel 317 square nuts come in sizes from M6 to M30. They offer a larger contact surface for secure fastening and are ideal for high-stress applications in marine and chemical environments.
We ensure our Stainless Steel 317 Nuts to be covered under full range certifications to provide highest quality assurance. Our shipment package would include commercial invoices, packaging lists, fumigation certificates, and heat treatment charts along with quality assurance plans and laboratory test reports. Besides, we also offer other test certificates solely for our Stainless Steel 317 Nuts. We consider these certificates MTC according to EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. Thus, we promise 100% client satisfaction by providing them with these elaborate certificates.
Stainless Steel 317 Nuts find extensive use in various industries, including chemical processing, pulp and paper, marine, oil and gas, and petrochemicals. They are perfect for securing components in equipment that faces harsh chemicals, acids, and seawater. Additionally, these nuts are suitable for pressure vessels, heat exchangers, food processing machinery, and pharmaceutical equipment where high corrosion resistance is crucial. In offshore and marine settings, they offer long-lasting protection against pitting and crevice corrosion. With their strength, reliability, and exceptional resistance to aggressive substances, Stainless Steel 317 Nuts are a dependable solution for critical fastening needs.
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