Weston Stainless, Midland, UK, is a well-known supplier and manufacturer of excellent stainless steel products to numerous industries with corrosion-resistant and tough solutions. Among its extensive list of products, Stainless Steel 405 Nuts are well known for their excellent strength, resistance to oxidation, and good machinability. These stainless steel nuts come in hex, square, wing, cap, and special shapes and are produced from Grade 405 ferritic alloy that possesses good weldability and is resistant to thermal instability. With moderate corrosion resistance and good strength, they can be used for structural and industrial applications that need reliability over an extended period.
Stainless Steel 405 Nuts consist of iron (balance), 11.5-14.5% chromium, up to 0.08% carbon, and small amounts of manganese, silicon, and phosphorus. They have a tensile strength of around 65 ksi (450 MPa), a yield strength of 30 ksi (205 MPa), and a hardness of up to 200 HB. Their physical characteristics are a density of 7.75 g/cm³, thermal conductivity of 24.9 W/m·K, and melting point of approximately 1450°C. These characteristics are responsible for their high-temperature performance, good oxidation resistance, and better mechanical stability in harsh industrial environments.
|
C |
Cr |
Fe |
Mn |
Si |
S |
P |
Ni |
Al | |
|
405 |
0.08 max |
min: 11.5 max: 14.5 |
balance |
1.0 max |
1.0 max |
0.03 max |
0.04 max |
0.50 max |
min: 0.1 max: 0.3 |
|
Grade |
Tensile Strength ksi (MPa) min |
Yield Strength 0.2% offset ksi (MPa) min |
Elongation (% in 50mm) min |
Hardness (Brinell) MAX |
Hardness (Rockwell B) MAX |
|
405 |
60 (415) |
25 (170) |
20 |
179 |
88 |
|
Denstiy lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F |
Specific Heat BTU/lbm -°F |
Modules of Elasticity (annealed)2-psi |
|
|
at 68 °F |
at 68 – 212°F |
at 68 – 1832°F |
at 200°F |
at 32 – 212°F |
in tension (E) |
|
0.279 |
9.2 |
20.5 |
416 |
0.11 |
28 x 106 |
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A corrosion-resistant product, Stainless Steel 405 nuts are available in sizes ranging from M6 to M64. These nuts are designed for moderate corrosion and oxidation resistance, making them ideal for automotive and thermal processing applications.
A corrosion-resistant product, Stainless Steel 405 coupling nuts are designed to connect two male threads. Available in sizes from M6 to M36, they offer excellent strength and durability for extended thread length connections in moderate corrosion environments.
A corrosion-resistant product, Stainless Steel 405 nylon insert nuts, also known as lock nuts, come in sizes from M3 to M36. They feature a nylon collar that prevents loosening due to vibration, providing secure fastening in various industrial applications.
A corrosion-resistant product, Stainless Steel 405 flange hex nuts have an integrated washer-like flange. Available in sizes from M5 to M20, these nuts distribute the load over a larger area, reducing the risk of damage and ensuring a secure fit.
A corrosion-resistant product, Stainless Steel 405 heavy hex nuts are characterized by their thicker and larger size, providing increased strength. Sizes range from M10 to M48, making them suitable for heavy-duty applications requiring robust and secure fastening.
A corrosion-resistant product, Stainless Steel 405 square nuts offer a larger surface area in contact with the part being fastened, reducing the risk of deformation. Available in sizes from M6 to M30, they are ideal for use in tight spaces and heavy clamping applications.
Stainless Steel 405 Nuts find wide application in power plants, petrochemical plants, marine conditions, and construction works because of their good resistance to oxidation and thermal expansion. They are most often used in turbine parts, furnace components, heat exchangers, and industrial equipment where high strength and durability are necessary. Their very good machinability and reasonable corrosion resistance also make them useful for fastener applications in boilers, pressure vessels, and exhaust systems, for long-term operation in high-temperature and moderate-corrosion environments.
Weston Stainless exports Stainless Steel 405 Nuts with test certificates, such as mill test reports (MTR), third-party inspection reports, and compliance certifications. These nuts are properly packaged in wooden crates, cartons, or protective wraps to avoid damage during transportation. The company facilitates effective worldwide delivery through air, sea, or land shipping, while maintaining the integrity of the product and ensuring customer satisfaction using secure and reliable logistics services.







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