Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of premium stainless steel products. Among their offerings are Stainless Steel 309S Fasteners, engineered for applications requiring exceptional high-temperature strength, oxidation resistance, and corrosion resistance. These fasteners are ideal for furnaces, heat exchangers, boilers, and industrial equipment operating under extreme thermal conditions. Each fastener is manufactured with precision and undergoes rigorous quality control to ensure consistent performance. Clients rely on 309S Fasteners from Walid Stainless for secure, durable, and dependable fastening solutions in demanding high-temperature and industrial applications.
Stainless Steel 309S Fasteners are made from a high-chromium, high-nickel austenitic stainless steel alloy containing approximately 23% chromium and 13% nickel, with low carbon content to prevent carbide precipitation. This composition provides excellent oxidation and corrosion resistance, along with high tensile strength at elevated temperatures. These fasteners typically exhibit tensile strength between 550–700 MPa and hardness around 170–210 HB. The austenitic structure ensures mechanical durability, thermal stability, and resistance to scaling. 309S Fasteners are suitable for high-temperature and corrosive industrial applications requiring long-term reliability and mechanical strength.
Stainless Steel 309s Fasteners Specifications | |
| Grade | Stainless Steel 309S Fasteners. |
| Standard | ASTM A193 / A194, ASME SA193 / SA194, IS, BS, ANSI |
| Size | M02 to M33 |
| Length | UPTO 5 METERS |
| Surface Coating | Hot Dipped Galvanizing 309s Stainless Steel Fasteners, Phosphate 309s Stainless Steel Fasteners, Teflon 309 Stainless Steel Fasteners, Ptfe Coated 309s Stainless Steel Fasteners, Xylon 309 Stainless Steel Fasteners, Zinc 309s Stainless Steel Fasteners, Cadmium 309 Stainless Steel Fasteners |
Element | Content (%) |
Iron, Fe | 60 |
Chromium, Cr | 23 |
Nickel, Ni | 14 |
Manganese, Mn | 2 |
Silicon, Si | 1 |
Carbon, C | 0.20 |
Phosphorous, P | 0.045 |
Sulfur, S | 0.030 |
|
Properties |
Metric |
Imperial |
|
Tensile strength |
620 MPa |
89900 psi |
|
Yield strength (@ strain 0.200%) |
310 MPa |
45000 psi |
|
Izod impact |
120 – 165 J |
88.5 – 122 ft-lb |
|
Shear modulus (typical for steel) |
77 GPa |
11200 ksi |
|
Elastic modulus |
200 GPa |
29008 ksi |
|
Poisson’s ratio |
0.27-0.30 |
0.27-0.30 |
|
Elongation at break (in 50 mm) |
45% |
45% |
|
Hardness, Brinell |
147 |
147 |
|
Hardness, Rockwell B |
85 |
85 |
|
Hardness, Vickers (converted from Rockwell B hardness) |
169 |
169 |
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Stainless Steel 309s Bolts are available in sizes ranging from M6 to M64 and lengths from 10mm to 200mm. They offer high corrosion resistance, making them suitable for high-temperature environments and demanding applications.
SS 309S Nuts come in sizes M6 to M64, providing excellent corrosion resistance and high strength. They are ideal for chemical processing and high-temperature applications, ensuring secure and reliable fastening.
SS Stud bolts in 309S range from M6 to M64 in diameter and are available in lengths up to 200mm. They offer superior corrosion resistance and are commonly used in high-temperature and high-stress environments, such as petrochemical plants.
These screws are available in sizes from M1.6 to M12, with lengths up to 100mm. They provide excellent corrosion resistance and are suitable for various applications, including construction, automotive, and industrial machinery.
Threaded rods in 309S come in sizes from M6 to M64 and lengths up to 3000mm. Known for their corrosion resistance and high strength, they are used in construction, marine, and high-temperature applications.
SS 309S washers are available in sizes ranging from M6 to M64. They provide excellent corrosion resistance and are used to distribute the load of a fastener, ensuring secure and stable assemblies in various applications, including high-temperature environments.
We manufacture these stainless steel fasteners using the best quality materials like SS 309S Fasteners. Most of our vast client base relies on these very fasteners, which are internationally trusted for their quality and reliability. These fasteners vary according to size and dimensions, custom-made, if so desired, to meet the specific needs of each customer. Our aim is to provide them with products they can trust in line with their exacting requirements.
Stainless Steel 309S Fasteners are widely used in industries requiring heat-resistant, corrosion-resistant, and durable fastening solutions. They are ideal for furnace components, heat exchangers, boilers, gas turbines, and chemical processing equipment exposed to extreme temperatures and corrosive environments. The high-chromium, high-nickel austenitic composition ensures excellent oxidation resistance, mechanical durability, and dimensional stability under thermal stress. Engineers and technicians rely on 309S Fasteners for secure, consistent, and long-lasting performance in high-temperature and industrial environments. Walid Stainless ensures that each fastener meets strict quality standards, providing dependable materials for demanding thermal, chemical, and industrial applications.
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