Andre Stainless stands out as a top manufacturer and supplier of high-quality Stainless Steel 347 Nuts in Singapore, Pulau Ujong. These nuts are designed to provide corrosion resistance and withstand high temperatures, making them perfect for critical industrial applications. SS 347 nuts are a type of stabilized austenitic stainless steel fastener, ideal for environments where intergranular corrosion and heat resistance are crucial. Andre Stainless offers these nuts in various sizes, threads, and finishes, all compliant with global standards like ASTM A194. Trusted by industries such as petrochemical, aerospace, power generation, and food processing, Andre Stainless ensures reliable performance with every product, supported by strict quality control and timely delivery.
Stainless Steel 347 Nuts are made up of 17–20% chromium, 9–13% nickel, and are stabilized with columbium (niobium) to prevent carbide precipitation during welding or exposure to high temperatures. This grade is known for its excellent resistance to intergranular corrosion and stress rupture. SS 347 nuts boast a minimum tensile strength of 515 MPa and a yield strength of 205 MPa, along with good ductility and a working temperature range of up to 870°C. They are non-magnetic in their annealed state and provide good creep strength, making them suitable for high-pressure and high-temperature applications.
Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
347 | min. max | 2.00 | – | 0.045 | – 0.08 | 0.030 | 17.0 19.0 | – | 0.75 | 9.0 13.0 | Nb=10(C+N) 1.0 |
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 | ||||
347 | 515 | 205 | 40 | 92 | 201 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 347 Nut |
IS BS ASTM |
ASTM A193 B8C |
3 mm to 200 mm |
M02 to M33 |
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A corrosion-resistant product, Stainless Steel 347 nuts are available in sizes from M6 to M64. They offer exceptional heat and oxidation resistance, ideal for high-temperature applications in aerospace and chemical processing industries.
A corrosion-resistant product, Stainless Steel 347 coupling nuts come in sizes from M6 to M36. They are designed to connect two male threads securely, providing high strength and stability in high-temperature and harsh industrial environments.
A corrosion-resistant product, Stainless Steel 347 nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert helps prevent loosening under vibration, offering reliable performance in high-temperature applications.
A corrosion-resistant product, Stainless Steel 347 flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They provide enhanced load distribution and stability in high-temperature and corrosive environments.
A corrosion-resistant product, Stainless Steel 347 heavy hex nuts are available in sizes from M10 to M48. Their increased thickness and strength make them suitable for heavy-duty and high-temperature applications requiring robust and secure fastening.
A corrosion-resistant product, Stainless Steel 347 square nuts offer a larger contact surface and come in sizes from M6 to M30. They are ideal for high-temperature and heavy clamping applications, providing stability and durability.
We provide our customer with a high-quality stainless Steel 347 Nut with full transparency. All the products carry necessary documentations, which are commercial invoice packing list fumigation certificate; heat treatment chart of a test report from NABL-approved laboratory’s We also give EN10204 /3.1-b material test, PMI, and a report on radiography of 100%, along with our Third Party inspection report, to enable full documentation by which client can achieve complete satisfaction.
Stainless Steel 347 Nuts are perfect for situations where both corrosion resistance and high-temperature performance are essential. They find extensive use in heat exchangers, boiler flanges, superheaters, exhaust manifolds, and various components across the chemical processing, aerospace, marine, and power generation sectors. Thanks to their columbium-stabilized composition, they are particularly well-suited for welded structures that face severe thermal cycling. SS 347 nuts effectively resist intergranular corrosion after welding and can be relied upon in oxidizing environments. Andre Stainless provides these nuts with a commitment to quality and performance.
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