Adam Stainless is your go-to source for top-notch **Stainless Steel 347H nuts** right from Canberra, Australia. These nuts are crafted for exceptional strength, heat resistance, and corrosion protection, making them perfect for tough industrial settings. Built to meet strict international standards, they feature precise threading, smooth finishes, and dependable mechanical performance. If you need secure fastening in high-temperature and corrosive environments, Adam Stainless’s Stainless Steel 347H nuts are the ideal choice, ensuring durability and safety for the long haul.
These nuts are made from an austenitic stainless steel alloy that includes about 17–19% chromium, 9–13% nickel, and is stabilized with niobium (columbium). The increased carbon content compared to grade 347 boosts creep strength and mechanical stability at high temperatures, while niobium helps prevent carbide precipitation, minimizing the risk of intergranular corrosion. On the mechanical side, these nuts boast a tensile strength between 515 and 620 MPa and a yield strength close to 205 MPa, along with impressive oxidation resistance up to 925°C.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347H | min. | 0.04 | – | – | – | – | 17.0 | 3.00 | 9.0 | – |
| max. | 0.10 | 2.0 | 1.00 | 0.045 | 0.030 | 19.0 | 4.00 | 13.0 | – | |
| 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 | ||||
| 347H | 515 | 205 | 40 | 92 | 201 |
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A corrosion-resistant product, Stainless Steel 347H nuts are available in sizes ranging from M6 to M64. They are designed for high-temperature applications, offering excellent creep resistance and stability in extreme conditions, suitable for aerospace and power generation industries.
A corrosion-resistant product, Stainless Steel 347H coupling nuts connect two male threads and come in sizes from M6 to M36. They provide high strength and thermal stability, making them ideal for high-temperature applications in industrial and aerospace settings.
A corrosion-resistant product, Stainless Steel 347H nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening under vibration, providing reliable performance in high-temperature environments where stability and security are crucial.
A corrosion-resistant product, Stainless Steel 347H flange hex nuts feature a built-in washer-like flange and come in sizes from M5 to M20. They offer enhanced load distribution and stability in high-temperature applications, ensuring durability and reliability.
A corrosion-resistant product, Stainless Steel 347H heavy hex nuts are larger and thicker, available in sizes from M10 to M48. They provide increased strength and thermal stability, making them suitable for heavy-duty and high-temperature industrial applications.
A corrosion-resistant product, Stainless Steel 347H square nuts have a larger surface area for contact, available in sizes from M6 to M30. They are ideal for high-temperature applications that require secure fastening in confined spaces and robust performance.
You’ll find Stainless Steel 347H nuts commonly used in **power plants, petrochemical industries, aerospace, chemical processing, and heat treatment applications**. They’re particularly well-suited for **fastening components in boilers, heat exchangers, pressure vessels, and high-temperature piping systems**. With Adam Stainless’s Stainless Steel 347H nuts, you get reliable, corrosion-resistant fastening solutions that can handle thermal cycling and harsh conditions, ensuring structural integrity and a long service life in critical industrial applications.
Stainless steel 347H nuts are used in high temperature applications such as aerospace, chemical processing and power generation. Their improved creep resistance and stability make them ideal for environments where thermal cycling is constantly used, providing reliable performance under challenging industrial conditions.
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