Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of high-quality Stainless Steel 442 Bolts. These bolts are designed for strength, durability, and corrosion resistance, making them ideal for both industrial and structural applications. Njabulo Stainless ensures precise threading, smooth surfaces, and uniform dimensions to provide secure and reliable fastening. Stainless Steel 442 bolts are widely used in chemical plants, marine environments, construction, automotive, and industrial machinery where high-temperature and corrosion-resistant fasteners are essential. They offer long-lasting performance in demanding conditions and are engineered for safe, efficient, and reliable assembly.
Stainless Steel 442 Bolts are made from ferritic stainless steel 442, which contains high chromium content (17–18%), low carbon, and minimal nickel. This composition provides excellent corrosion resistance, oxidation resistance, and high-temperature strength. Mechanically, these bolts have high tensile strength, hardness, and toughness, maintaining integrity under heavy loads and extreme conditions. The ferritic structure ensures dimensional stability and resistance to stress corrosion cracking. Smooth surfaces and precise threading allow for tight, secure connections, making them suitable for structural, industrial, and high-temperature applications.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 442 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 442 |
| 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 442 |
| 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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Stainless Steel 442 Bolts are high temperature resistant fasteners known for excellent oxidation and corrosion resistance. They are ideal for high-temperature applications, providing durability and stability in harsh industrial environments.
Custom Stainless Steel 442 Hex Bolt is a high heat resistant fastener with a square head, made to a specific size. Provides exceptional strength and durability in extreme temperatures.
Stainless Steel 442 Leg Bolt is a highly durable, heat-resistant material with a long threaded thread and flat head, designed for durability and stability in extreme temperatures and hot environments
Stainless Steel 442 Expansion Anchor Bolts are heat-resistant fasteners used to secure concrete or masonry structures. It expands in the hole as it tightens, providing a firm grip.
Stainless Steel 442 Hex Flange head bolt features a hexagonal head with an integrated flange for improved weight distribution. Provides superior heat resistance and durability for demanding industrial applications.
Stainless steel 442 full threaded bolts have threads running the entire length, providing consistent clamping force and high-temperature resistance. They are ideal for high-stress applications requiring durability and strength.
After the production of our SS 442 Bolts, the quality control team performs a number of destructive and non-destructive tests. With the most advanced tools and methodologies to make them durable and perform well. Once the bolts are tested, our workers pack them with care so that it does not lose its quality during transport. Ensuring timely and hassle-free deliveries to our esteemed customers as per all deadlines. We also ensure to provide all necessary documentation to clients at the time of delivery so that they are aware of everything.
Stainless Steel 442 Bolts are widely used in chemical processing plants, petrochemical facilities, marine environments, power generation, and industrial machinery. They are ideal for fastening components in pipelines, equipment, structural frameworks, and high-temperature machinery. Their corrosion and oxidation resistance make them suitable for outdoor and harsh environments exposed to moisture, chemicals, or heat. In the construction and automotive industries, 442 bolts ensure long-lasting, secure connections. These bolts are also used in heat exchangers, boilers, and pressure vessels, providing reliable performance, durability, and safety in demanding industrial and structural applications.
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