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Poang Fasteners is a well-known manufacturer and supplier of Stainless Steel 422 Bolts based in Da Nang, Vietnam. We provide robust fastening solutions tailored for industries that operate under high-temperature and high-stress conditions. Stainless Steel 422 is a martensitic stainless steel known for its impressive mechanical strength, wear resistance, and ability to withstand oxidation at elevated temperatures. Our SS 422 Bolts are crafted to meet international standards such as ASTM, DIN, and ISO, ensuring they deliver precision, durability, and reliability. These bolts find extensive use in aerospace, power generation, petrochemical, and marine sectors, where exceptional creep resistance, toughness, and thermal stability are essential for critical operations and longevity.
Stainless Steel 422 Bolts are mainly made up of about 12% chromium, 0.2–0.3% carbon, 1% molybdenum, along with trace amounts of tungsten, vanadium, and nickel. This unique alloy composition boosts their strength, oxidation resistance, and heat resistance. The bolts exhibit high tensile strength (around 760–1000 MPa), yield strength (approximately 450–650 MPa), and remarkable creep resistance at temperatures reaching 650°C (1200°F). Thanks to their martensitic structure, they offer superior hardness and wear resistance, making SS 422 Bolts ideal for long-lasting performance in thermally demanding environments. They maintain stability, dimensional accuracy, and durability even in harsh, high-pressure, and high-temperature situations.
| Component | Wt. % |
| C | 0.23 |
| Cr | 12.5 |
| Fe | 83 |
| Mn | 0.5 |
| Mo | 1 |
| Ni | 0.8 |
| P | 0.02 |
| S | 0.015 |
| Si | 0.38 |
| V | 0.23 |
| W | 1 |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Brinell | 290 | 290 | Estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball |
| Hardness, Knoop | 315 | 315 | Estimated from Rockwell C value. |
| Hardness, Rockwell C | 30 | 30 | |
| Hardness, Vickers | 304 | 304 | Estimated from Rockwell C value. |
| Tensile Strength, Ultimate | 897 MPa | 130000 psi | |
| Tensile Strength, Yield | 828 MPa | 120000 psi | 0.2% Offset |
| Elongation at Break | 15 % | 15 % | |
| Reduction of Area | 40 % | 40 % |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless steel 422 bolts are used in a variety of complex applications due to their high strength and durability. Because of their resistance to heat and corrosion, they are important in the aerospace industry for turbine and engine structural components. It is used in steam and gas turbines in electricity generation. Furthermore, these screws are used in industrial machinery, marine environment and medicine, where they withstand extreme temperatures and harsh conditions to ensure capable performance reliable and durable
Poang Stainless Steel 422 Bolts are extensively used in the aerospace and defense sectors for applications like jet engines, turbine blades, and structural assemblies that demand both strength and heat resistance. In power plants, you’ll find them in boilers, turbines, and high-pressure steam systems. The petrochemical and refinery industries depend on SS 422 Bolts for use in furnaces, reactors, and thermal processing equipment that face extreme conditions. Additionally, marine and offshore industries utilize these bolts in propulsion systems and subsea equipment, ensuring reliability and performance in challenging environments.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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