Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 347 Bolts that are perfect for high-temperature and corrosive environments. These bolts are stabilized with niobium (also known as columbium), which helps them resist intergranular corrosion and scaling, even under prolonged heat exposure, ensuring they remain durable and reliable. With their impressive creep strength and mechanical stability, Stainless Steel 347 Bolts are the go-to choice for critical industrial applications where long-lasting performance is a must. Lecong Stainless follows strict quality standards and precision manufacturing processes, making these bolts a top pick in Vietnam and around the world for dependable stainless steel fastening solutions.
These bolts are made up of 17–19% chromium, 9–13% nickel, and niobium stabilizers. They boast a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and an elongation of 40%. Thanks to niobium stabilization, they prevent carbide precipitation during high-temperature use, which enhances their resistance to intergranular corrosion. Additionally, these bolts offer excellent oxidation resistance up to 1500°F (816°C), making them suitable for tough thermal and corrosive conditions. With their blend of toughness, durability, and thermal stability, Stainless Steel 347 Bolts provide reliable fastening in high-stress and elevated-temperature applications.
|
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.
You’ll find Stainless Steel 347 Bolts widely used in industries like petrochemical, chemical processing, power generation, and oil and gas. They’re perfect for securing equipment in boilers, heat exchangers, pressure vessels, superheaters, and high-temperature piping systems. In aerospace and marine settings, these bolts stand up to corrosive environments and thermal cycling. They’re also ideal for refinery equipment, exhaust systems, and furnace components where strength, durability, and long-term reliability are essential. With their outstanding mechanical and thermal properties, Stainless Steel 347 Bolts are a dependable choice for any demanding application.
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