Emilio Stainless, based in Manila, Philippines, stands out as a reputable manufacturer and supplier of stainless steel fasteners, particularly known for their top-notch **309S stainless steel nuts**. With a commitment to using high-quality materials and precision in manufacturing, they produce nuts that meet strict international standards. Emilio Stainless caters to industries that demand corrosion resistance and stability at high temperatures, providing nuts that boast an excellent finish, precise threading, and consistent dimensions. Their robust production capacity, dependable supply chain, and thorough quality control make them a go-to choice for customers across Manila and beyond.
The austenitic stainless steel grade **309S** (UNS S30908) is notable for its high chromium content (around 22-24%) and nickel content (approximately 12-15%), while keeping carbon levels low (≤ 0.08%) to reduce carbide precipitation and enhance weldability. This material also contains trace amounts of manganese (≤ 2%), silicon (≤ 1%), phosphorus (≤ 0.045%), and sulfur (≤ 0.03%). Mechanically, nuts crafted from 309S stainless steel deliver impressive tensile strength, outstanding ductility (with elongation often between 35-45%), and remarkable toughness, even at elevated temperatures. The alloy holds up well under thermal cycling and shows excellent resistance to oxidation.
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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Corrosion-resistant product designed for high-temperature environments. Stainless Steel 309S Nuts are available in sizes from M6 to M36, ideal for furnace components and industrial applications requiring excellent heat and oxidation resistance.
Stainless Steel 309S Coupling Nuts are used to connect threaded rods in high-temperature settings. Sizes range from M6 to M36, suitable for furnace and kiln applications where durability and heat resistance are essential.
Stainless Steel 309S Nylon Insert Nuts feature a nylon insert to prevent loosening under high temperatures. Available in sizes from M6 to M24, they are ideal for securing components in industrial machinery and furnace applications.
Stainless Steel 309S Flange Hex Nuts offer enhanced load distribution with integrated flanges. Sizes range from M6 to M24, suitable for high-temperature environments such as kilns and industrial equipment, providing both strength and corrosion resistance.
Stainless Steel 309S Heavy Hex Nuts are designed for high-stress, high-temperature applications. Available in sizes from M6 to M36, they are ideal for use in industrial machinery and furnace components, ensuring exceptional strength and thermal stability.
Stainless Steel 309S Square Nuts provide a large surface area for effective torque application. Sizes range from M6 to M24, suitable for high-temperature and industrial applications, ensuring durability and stability in demanding environments.
We are providing a wide variety of certifications with our Stainless Steel 309S Nuts in order to satisfy a high quality standard. In our package, commercial invoices, packing lists, fumigation certificates, heat treatment charts, quality assurance plans, and approved laboratory test reports are provided. Besides, test certificate varying specifically for our Stainless Steel 309S Nuts. The set of certificates used by us consists of MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. It will ensure full satisfaction and satisfaction for our customers and clients that these products carry complete certifications.
You’ll find 309S stainless steel nuts in applications where fasteners need to withstand heat, oxidation, and moderate corrosive environments. They’re commonly used in furnace components, heat exchanger assemblies, boiler parts, oven linings, and in any setting where high temperatures or cyclic heating are present. Additionally, they find their place in chemical processing plants and as structural components in equipment that faces oxidizing conditions. Emilio Stainless provides these nuts to fabricators and maintenance operations, ensuring quality and reliability in every order.
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