Chanchai Stainless supplies Stainless Steel 347 Bolts in Bangkok, Thailand. These bolts are designed for strong resistance to intergranular corrosion and high-temperature service. Stabilized with niobium, grade 347 prevents carbide precipitation during welding, making these bolts perfect for applications requiring long-term exposure to heat and stress. Their durability, corrosion resistance, and good mechanical properties ensure consistent performance in the chemical, refinery, and power generation industries. Manufactured to meet international standards, Stainless Steel 347 Bolts from Chanchai Stainless are a trusted choice for fastening solutions where oxidation resistance, thermal stability, and weldability are vital for long-term service.
Stainless Steel 347 bolts contain chromium (17-19%), nickel (9-13%), niobium/tantalum stabilizers, and low carbon (<0.08%). Niobium enhances resistance to intergranular corrosion during welding and heat exposure. These bolts have a tensile strength of about 515 MPa and a yield strength around 205 MPa, with elongation of 40% or more. They maintain oxidation resistance up to 870°C and creep strength at high temperatures. Stainless Steel 347 provides excellent toughness, weldability, and mechanical stability, making it ideal for fastening in demanding thermal and corrosive environments.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 347 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 347 |
| 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 347 |
| 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 | – |
Contact us to get a quick quote for your requirement.
Stainless Steel 347 bolts are high-temperature resistant fasteners with excellent corrosion resistance, especially against acids. They offer durability and strength in extreme environments, ideal for aerospace and industrial applications.
Custom Stainless Steel 347 Hex Bolt is a custom-made fastener with a square head, which provides excellent high-temperature corrosion resistance and is ideal for specialty applications requiring durability and durability in the case of in the strong.
Stainless Steel 347 leg bolt is a high-temperature resistant fastener with a threaded shaft and flat, leg-like design. It provides strong, reliable connections in harsh industrial and high-heat environments.
Stainless Steel 347 Expansion Anchor Bolt is designed to securely anchor objects into concrete or masonry. It offers high-temperature resistance and excellent corrosion protection, expanding upon installation for a strong hold.
Stainless Steel 347 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 corrosion protection.
Stainless Steel 347 full threaded bolts have a completely threaded shaft, offering consistent grip and engagement. They are designed for high-temperature applications, providing excellent strength and corrosion resistance in extreme environments.
We ensure the top quality of SS 347 Bolts by following a strict in-house testing and quality control process. We carry out an exhaustive range of tests such as tensile tests, hardness tests, and corrosion resistance tests, etc. Our promise of excellence also includes prompt delivery so that our customers get dependable products at the time of delivery, every time.
Stainless Steel 347 bolts are often used in chemical processing, refinery plants, and heat exchangers due to their resistance to intergranular corrosion. They are utilized in boilers, superheaters, and gas turbine components that need thermal stability. Food processing and pharmaceutical industries use them in sterilizers and piping systems that require high cleanliness and corrosion resistance. In aerospace and automotive sectors, they appear in exhaust systems and structural fastenings exposed to high heat. Stainless Steel 347 bolts provide secure fastening solutions where weldability, corrosion resistance, and mechanical performance at high temperatures matter.
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