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Mbemba Stainless is a reputable manufacturer and supplier located in Kinshasa, Congo, specializing in top-notch Stainless Steel 442 Stud Bolts. Crafted from a unique ferritic-martensitic stainless steel, these stud bolts are engineered for high strength, outstanding oxidation resistance, and exceptional performance in environments that are moderately corrosive and high-temperature. At Mbemba Stainless, they prioritize precision manufacturing, rigorous quality control, and adherence to international standards. Their SS 442 stud bolts are perfect for critical industrial applications, delivering dependable fastening solutions in sectors like chemical processing, power generation, petrochemicals, and high-temperature furnace operations.
These Stainless Steel 442 Stud Bolts mainly consist of 17–18% chromium and 0.5–1% nickel, along with trace amounts of molybdenum, carbon, and manganese. This specific blend results in a tensile strength ranging from 600 to 750 MPa, along with excellent yield strength, ductility, and toughness. The high chromium content guarantees remarkable resistance to oxidation and scaling at elevated temperatures, while also ensuring good mechanical stability under stress. Additionally, these bolts show moderate resistance to corrosion in mildly aggressive environments.
| 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 % |
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Stainless Steel DIN 1.4301 Stud Bolts offer excellent strength and corrosion resistance. Perfect for high-stress environments, they provide reliable performance with their precision threading and durability in various applications.
Stainless Steel UNS S44200 Stud Bolts combine strength and corrosion resistance, ideal for demanding conditions. Their high durability and reliable threading make them suitable for heavy-duty and industrial applications.
Stainless Steel 442 Flush Head Stud Bolts feature a sleek, flush design for a smooth finish. Combining corrosion resistance and strength, they are ideal for applications requiring a streamlined, low-profile solution.
After our Stainless Steel 442 Bolts are produced, our quality control team puts them through the most comprehensive tests. Destructive and non-destructive tests conducted with advanced technology, guarantee that the bolts have the maximum level of strength and performance. After ensuring all the quality standards are met the bolts are packaged securely using suitable packaging materials to protect them during shipping. We stress timely delivery, and all our customers get their orders on time. We offer all documentation pertaining to the delivery so that the client is fully satisfied and assured.
You’ll find Stainless Steel 442 Stud Bolts commonly used in high-temperature piping systems, boiler and furnace assemblies, heat exchangers, chemical processing equipment, and industrial machinery that face thermal stress and oxidation. They’re also well-suited for power plants, petrochemical facilities, and marine equipment that need reliable fastening in elevated temperatures and moderately corrosive conditions. With their impressive mechanical strength, high-temperature resilience, and durability, SS 442 stud bolts are the go-to choice for demanding industrial and thermal applications.
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