Nakamura Stainless stands out as a top manufacturer and supplier based in Pulau Ujong, Singapore, renowned for its high-quality stainless steel products tailored to meet a variety of industrial needs. Among their specialized offerings are Stainless Steel 347H Nuts, which boast remarkable resistance to oxidation and intergranular corrosion, especially at elevated temperatures. Thanks to their higher carbon content, these nuts also feature enhanced mechanical strength, making them perfect for high-stress environments. Crafted with precision, Stainless Steel 347H Nuts ensure durability, reliability, and secure fastening solutions across demanding industrial sectors.
These nuts are made up of 17–19% chromium, 9–13% nickel, and columbium/tantalum stabilizers, with a higher carbon content that boosts strength in high-temperature situations. They are known for their excellent resistance to intergranular corrosion, impressive tensile strength, and durability in oxidizing conditions. Their mechanical properties include high yield and tensile strength, good creep resistance, and outstanding toughness, making them ideal for extended use in elevated temperature settings.
| 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.
Stainless Steel 347H Nuts find their place in various industries, including chemical processing, oil and gas, power generation, and heat treatment equipment. They are particularly well-suited for fastening applications in boilers, heat exchangers, and high-temperature exhaust systems, where strength and corrosion resistance are crucial. Additionally, these nuts are perfect for aerospace, refineries, and marine engineering, providing long-lasting performance and reliability even in harsh operating conditions. Their unique combination of high-temperature stability and mechanical strength makes them essential for critical fastening 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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