Harshita Stainless, a prominent manufacturer and supplier located in Delhi, India, specializes in high-quality Stainless Steel 347 Fasteners that are built for top performance in tough industrial settings. These fasteners are renowned for their outstanding resistance to intergranular corrosion and their ability to withstand high temperatures, making them perfect for industries like chemical, petrochemical, aerospace, and power generation. SS 347 is a niobium-stabilized austenitic stainless steel that excels in welded structures and high-temperature applications. Harshita Stainless is committed to rigorous quality control, precise dimensions, and prompt delivery. With tailored solutions available, the company caters to clients throughout India and worldwide with unparalleled reliability and service.
Stainless Steel 347 fasteners are made up of 17–20% chromium, 9–13% nickel, and are stabilized with niobium (columbium) to enhance their resistance to intergranular corrosion. This alloy boasts excellent weldability and mechanical strength, featuring a tensile strength of about 515 MPa, a yield strength of 205 MPa, and Brinell hardness between 150–200 HB. SS 347 retains its structural integrity and resists oxidation at temperatures reaching up to 870°C. These fasteners are non-magnetic when annealed and are particularly well-suited for high-temperature applications and welded constructions where preventing carbide precipitation is crucial.
|
Material |
Specification |
Standards |
Size
|
Length |
|
Stainless Steel 347 Fasteners
|
IS
BS
ASTM
|
ASTM / ASME – A/ SA 193 |
3 mm
to
200 mm
|
M02 to M33
|
| 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 |
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Highly corrosion-resistant, Stainless Steel 347 Nuts are designed to withstand high temperatures and corrosive environments. They are available in various sizes, typically from M4 to M36, and standard dimensions such as 6mm to 30mm in thickness.
Offering excellent resistance to oxidation and corrosion, Stainless Steel 347 Stud Bolts come in sizes ranging from M6 to M36, with lengths varying from 25mm to 300mm. They are ideal for high-temperature and chemical-resistant applications.
Corrosion-resistant and durable, Stainless Steel 347 Bolts are used in extreme environments. They are available in sizes from M6 to M36 and standard lengths from 16mm to 100mm, suitable for high-stress applications and high-temperature conditions.
Known for their high corrosion resistance and stability under heat, Stainless Steel 347 threaded rods are available in diameters from M6 to M36 and lengths ranging from 100mm to 3000mm. They are used in heavy-duty and high-temperature settings.
Featuring excellent resistance to oxidation and corrosion, Stainless Steel 347 screws come in sizes from M3 to M20, with lengths from 10mm to 150mm. They are suited for high-temperature and corrosive environments.
With superior corrosion and high-temperature resistance, Stainless Steel 347 washers are available in diameters ranging from M4 to M36. Thickness varies from 0.5mm to 5mm, making them suitable for various applications where durability is critical.
We always focuse on customer experience by way of our quality Stainless Steel 347 Fasteners. Every consignment comes attached with commercial invoices, packing lists, heat treatment charts, plans for quality assurance, and the NABL-approved lab test reports to establish genuineness and quality with client satisfaction.
Stainless Steel 347 fasteners find extensive use in environments that are high-temperature, high-stress, and corrosive. They are commonly used in exhaust manifolds, heat exchangers, pressure vessels, refinery piping, and furnace components. In the aerospace and power generation industries, these fasteners are essential for securing parts that are subjected to thermal cycling and mechanical stress. Additionally, SS 347 fasteners are utilized in chemical processing equipment where resistance to strong acids is vital.
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