Home > Stud Bolts > Stainless Steel 442 Stud Bolts
Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of Stainless Steel 442 Stud Bolts. These high-strength stud bolts are designed for durable, reliable, and secure fastening in industrial, structural, and mechanical applications. Njabulo Stainless ensures precision threading, smooth surfaces, and uniform dimensions, providing long-lasting and leak-proof connections. Stainless Steel 442 stud bolts are widely used in chemical, petrochemical, marine, automotive, and power generation industries, where excellent corrosion resistance, mechanical strength, and high-temperature tolerance are critical for safe and efficient operations.
Stainless Steel 442 Stud Bolts are made from ferritic stainless steel 442, containing chromium (17–19%), molybdenum (1–2%), and low carbon content. This composition provides excellent corrosion resistance, good tensile strength, and moderate hardness, making them suitable for high-stress and moderately corrosive environments. Mechanically, 442 stud bolts offer toughness, dimensional stability, and fatigue resistance, maintaining integrity under heavy loads and thermal stress. Precision manufacturing ensures smooth threads and accurate dimensions, making these stud bolts ideal for industrial, mechanical, and structural applications requiring durability and long-lasting performance.
| 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.
Stainless Steel 442 Stud Bolts are widely used in chemical plants, petrochemical facilities, marine engineering, automotive components, and industrial machinery. They are ideal for fastening pipelines, pumps, valves, pressure vessels, and structural components exposed to high stress, heat, or moderately corrosive conditions. Their corrosion resistance ensures long-term reliability and leak-proof connections in demanding environments. In industrial and construction applications, 442 stud bolts provide secure, durable, and precise fastening. Overall, they deliver strength, durability, and corrosion resistance, making them essential for high-performance industrial, mechanical, and structural applications.
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