High-quality stainless steel 348 bolts made for corrosive and high-temperature service environments are available from Vinit Stainless, a top manufacturer and supplier in Chennai, India. Niobium-stabilized austenitic stainless steel SS 348 provides exceptional resistance to intergranular corrosion, especially when welded. Our 348 bolts are produced with rigorous quality control and cutting-edge technology to guarantee exceptional durability, corrosion resistance, and mechanical qualities. These bolts are perfect for use in the petrochemical, chemical, power generation, and aerospace industries where dependability and performance are crucial because Vinit Stainless offers them in a variety of sizes and specifications.
Niobium (columbium) is added to stainless steel 348 bolts to stabilise the alloy against carbide precipitation during welding. The alloy is made up of 17–19% chromium and 9–13% nickel. This increases their ability to withstand intergranular corrosion and qualifies them for use at higher temperatures. SS 348 bolts normally have a yield strength of about 205 MPa and a tensile strength of 515–750 MPa. Even at temperatures as high as 870°C, the alloy maintains good ductility, toughness, and creep resistance. For applications involving pressure, thermal cycling, and corrosive environments, these characteristics make it extremely dependable.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 348 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 348 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 348 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 348 bolts are high-temperature, corrosion-resistant fasteners designed for extreme environments. They offer excellent durability and strength, making them suitable for aerospace, petrochemical, and industrial applications.
Custom Stainless Steel 348 Hex Bolt is a custom designed fastener with a square head, providing superior thermal properties and excellent corrosion resistance Ideal for special applications requiring strength and reliability in extreme conditions.
Stainless Steel 348 leg bolt is a high-temperature, corrosion-resistant fastener with a threaded shaft and flat, leg-like design. It ensures strong, durable connections in extreme heat and harsh industrial settings.
Stainless steel 348 expansion anchor bolts are designed to anchor objects in concrete or masonry. It provides superior heat resistance and excellent corrosion protection, and extends the range of durable, durable wear for installation.
Stainless Steel 348 hex flange head bolt features a hexagonal head with an integrated flange, ensuring secure fastening and load distribution. It provides high-temperature resistance and excellent durability in harsh environments.
Stainless Steel 348 full threaded bolts have a completely threaded shaft, providing consistent engagement and grip. They offer high-temperature resistance and exceptional corrosion protection, suitable for demanding industrial and aerospace applications.
348 Stainless Steel Bolts are frequently utilised in settings that demand high temperatures and exceptional strength and resistance to corrosion. Heat exchangers, pressure vessels, chemical reactors, exhaust manifolds, and superheater components are frequently equipped with these bolts. They are especially helpful in applications where post-weld heat treatment is impractical due to their stability after welding. SS 348 bolts are essential for dependable fastening under extreme mechanical and thermal stress in sectors like nuclear, petrochemical processing, power generation, and aerospace. Long-term performance under harsh and corrosive service conditions is guaranteed by their exceptional resistance to oxidation, creep, and intergranular corrosion.
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