MERIH STAINLESS, located in Istanbul, Turkey, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, featuring a wide array of fasteners and industrial components. Among their standout products, the Stainless Steel 440B Bolts are particularly noteworthy for their impressive durability, precision, and strength. Crafted to excel in tough environments, these bolts boast remarkable hardness, resistance to corrosion, and wear, making them perfect for both industrial and engineering uses. MERIH STAINLESS guarantees that every bolt is produced in strict accordance with international standards, providing dependable fastening solutions for industries that require exceptional performance and long-lasting reliability.
Stainless Steel 440B Bolts are made from high-carbon martensitic stainless steel, which includes about 16–18% chromium, 0.75–1.2% carbon, along with trace amounts of manganese, silicon, and molybdenum. This unique blend strikes a great balance between hardness and corrosion resistance. When heat-treated, 440B reaches a Rockwell hardness of approximately 56–58 HRC, making it one of the hardest stainless steels on the market. It delivers impressive tensile strength (up to 760 MPa) and decent toughness, while still maintaining corrosion resistance in mild environments and freshwater. These mechanical traits make 440B bolts perfect for high-stress, demanding applications.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 440b Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 440b |
| 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 440b |
| 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 440B is a high-carbon martensitic stainless steel known for its excellent hardness, corrosion resistance and moderate corrosion resistance, making it suitable for demanding applications and precision tooling
Custom stainless steel 440B hex bolts are high-carbon martensitic stainless steel fasteners with hexagonal heads, tailored to high-strength wear-resistant applications, for durability and corrosion resistance
Stainless Steel 440B Leg Bolt is a high-carbon, martensitic steel fastener known for its excellent hardness and wear resistance. It’s ideal for heavy-duty applications, providing durability and strength.
Stainless Steel 440B Expansion Anchor Bolt is a high-carbon, martensitic steel fastener used for securing fixtures in concrete or masonry. Its hardness and strength ensure reliable performance under heavy loads.
Stainless Steel 440B Hex Flange Head Bolt features a hexagonal head with an integrated flange, offering high strength and wear resistance. It’s designed for heavy-duty applications requiring robust and stable fastening.
Stainless steel 440B full-threaded bolts are high carbon martensitic steel fasteners with full thread width and length. They offer exceptional rigidity and strength, suitable for demanding applications requiring full installation.
Quality control tests both destructive and non-destructive are conducted by our quality control team after manufacturing the Stainless Steel 440B Bolts. Advanced tools and techniques are used for testing in order to assure the client’s performance and longevity. When these bolts pass the tests, we package them correctly with relevant materials to conserve their quality during transport. We have ensured they reach the clients on time with no delays and make available all the necessary documentation at the time of delivery for full transparency.
Stainless Steel 440B Bolts find their place in various industries that need exceptional hardness and strength, along with reliable corrosion resistance. They are particularly suited for heavy machinery, automotive parts, aerospace assemblies, and engineering projects where high wear resistance is crucial. These bolts are also utilized in pump and valve assemblies, marine fittings, and oilfield equipment, where they often face moisture and stress. Additionally, 440B bolts are used in defense equipment, industrial tools, and mechanical systems that require precision and durability.
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