Khaleed Stainless, located in Riyadh, Saudi Arabia, is a long-standing stainless steel fasteners manufacturer and supplier of high-quality stainless steel fasteners with solutions specifically aligned for industrial and high-performance applications. Of the many varied products they produce, Stainless Steel 347 Nuts are universally respected for their high resistance to intergranular corrosion and resistance to high-temperature corrosion. The nuts are perfectly suited for use in applications with constant exposure to heat and stress. With an assurance of providing quality and accuracy, Khaleed Stainless provides a large range of industries in Saudi Arabia and the Middle East with reliable fastening solutions.
Stainless Steel 347 Nuts are manufactured from columbium (niobium) stabilized austenitic stainless steel alloy with an approximate content of 17–19% chromium and 9–13% nickel. Columbium addition avoids carbide precipitation under welding and high-temperature exposure, which gives better resistance to corrosion. These nuts have mechanical characteristics including tensile strength of approximately 75 ksi, yield strength of 30 ksi, and elongation of 40%. They possess good creep strength and oxidation resistance that enables them to be used for high-temperature service and for conditions where frequent thermal cycling is encountered.
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 found to be implemented in applications where high heat resistance and resistance to intergranular corrosion are necessities, including exhaust manifolds, heat exchangers, boilers, and high-pressure steam piping. They are best suited for implementation in chemical processing, aerospace, refinery, and power generation industries where durability over the long term in thermal stress is required. Their capability to provide mechanical integrity at elevated temperatures makes them a good option for fastening parts in aggressive and corrosive service conditions.
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