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MUKAU FASTENERS, a reputable manufacturer and supplier located in Kinshasa, Congo, specializes in high-quality Stainless Steel 422 Bolts that are perfect for demanding industrial applications. These bolts are celebrated for their remarkable strength, hardness, and resistance to wear, oxidation, and extreme temperatures. Crafted with cutting-edge technology and top-notch raw materials, Stainless Steel 422 Bolts provide reliable fastening even in the toughest conditions. MUKAU FASTENERS is committed to precision, durability, and adherence to global quality standards, making their bolts an excellent choice for industries like aerospace, power generation, petrochemical, and marine engineering.
Stainless Steel 422 Bolts are made from martensitic stainless steel and contain about 12% chromium, 1% molybdenum, 0.2–0.3% carbon, along with trace elements of nickel, manganese, silicon, and vanadium. This unique blend gives them outstanding mechanical strength, oxidation resistance, and thermal stability. They boast a tensile strength ranging from 700 to 950 MPa, a yield strength of around 500 MPa, and impressive creep resistance at high temperatures. With the right heat treatment, Stainless Steel 422 Bolts achieve remarkable hardness and fatigue resistance, making them ideal for high-stress, high-temperature industrial settings.
| 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 find their place in various applications that require exceptional strength, heat resistance, and long-lasting durability. They are perfect for turbine components, jet engines, steam generators, valves, and pumps that operate under intense thermal and mechanical stress. Their excellent oxidation and corrosion resistance make them suitable for power plants, petrochemical facilities, and marine engineering projects. Additionally, they are utilized in aerospace assemblies, oil and gas refineries, and heavy industrial machinery where dependable fastening is essential. MUKAU FASTENERS’ Stainless Steel 422 Bolts ensure stability and reliability in every application.
Our stainless steel 422 bolts go through rigorous quality checks to ensure superior performance. These tests include hardness tests, chemical analysis by Spectro analysis, determination of quality materials by PMI tests, leveling tests, micro-macro tests, pitting resistance tests, fire tests, intergranular corrosion (IGC) tests complete for, with trade invoicing including HS codes and gross weight, box count, label, number of shows and contains a detailed packing list In addition, a certificate of origin from a trade group or accompanied by a diplomatic formalization and a letter of acknowledgement. For customer satisfaction, we also offer a third-party inspection certificate, which proves the quality and reliability of our stainless steel 422 bolts. Safe and durable packaging is used to ensure safe transportation.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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