Weston Stainless, Midland, UK, is a well-known supplier of high-performance stainless steel fasteners, offering premium solutions for industries demanding strength and durability. Stainless Steel 422 Bolts are manufactured from martensitic stainless steel (Grade 422), which has superior heat resistance, high tensile strength, and excellent corrosion resistance. The bolts are available in different shapes, such as hex, square, U-bolts, eye bolts, and custom shapes, to ensure versatility for various industrial applications. With a composition that is high in chromium, molybdenum, tungsten, and vanadium, Stainless Steel 422 Bolts are particularly suitable for high-stress and high-temperature conditions, such as power plants and aerospace.
Stainless Steel 422 Bolts have 12.0-14.0% chromium, 0.20-0.25% carbon, 0.75-1.25% molybdenum, 0.50-1.00% vanadium, and 0.75-1.25% tungsten with traces of silicon, manganese, phosphorus, and sulfur. These bolts have a tensile strength of 1034 MPa, yield strength of 827 MPa, and hardness of up to 45 HRC, which makes them suitable for heavy-duty use. The density is around 7.8 g/cm³, and the melting point is around 1425°C, providing excellent thermal stability, oxidation resistance, and wear resistance under challenging conditions.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 422 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 422 |
| 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 422 |
| 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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High-strength fasteners designed for extreme temperatures. They offer excellent durability and corrosion resistance, making them ideal for aerospace, industrial machinery, and high-stress applications.
High-strength fastener with a square head, made to a specific size. Provides durability and excellent resistance to high temperatures and corrosion.
High-strength fastener with a long, threaded shaft and flat head. It provides exceptional durability and heat resistance for demanding industrial and aerospace applications.
Durable fastener for concrete or masonry structures. It expands in the hole as it tightens, providing a firm and reliable grip.
Hexagonal head with an integrated flange for increased weight distribution. It also provides superior strength and resistance to high temperatures and corrosion.
Threads running the entire length, providing consistent clamping force and high-temperature resistance. They are ideal for applications requiring durability and strength in extreme conditions.
Stainless Steel 422 Bolts are extensively applied in power plants, gas turbines, steam turbines, and aerospace, where high temperature strength is essential. They also find application in petrochemical plants, heat exchangers, and high pressure boilers, providing long-term durability against extreme thermal stress. Moreover, their resistance to corrosion and oxidation is ideal for marine, automotive, and structural engineering applications. Applications demanding fatigue resistance, like furnace parts, pressure vessels, and high-speed equipment, find the high-performance bolts very useful.
Weston Stainless provides Stainless Steel 422 Bolts with mill test certificates (MTC) according to EN 10204 3.1/3.2 to meet international quality standards. The bolts are also packed securely in wooden crates, plastic wrap, or custom protective coverings to avoid damage in transit. With a robust supply chain and logistics, Weston Stainless assures on-time delivery, serving the challenging requirements of a variety of industries with reliability and precision.
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