Harsh Metalloys, Mumbai, India, is a well-known producer and supplier of Stainless Steel 440B Bolts with outstanding hardness, abrasion resistance, and moderate corrosion resistance. These bolts are manufactured from high-carbon martensitic stainless steel and offer strong fastening solutions under challenging industrial conditions. Harsh Metalloys produces 440B bolts in varying sizes and thread conditions to ensure precision and strength. Relied upon by industries like aerospace, automotive, and mechanical engineering, our stainless steel bolts exhibit high strength and long-term performance, with high quality requirements for demanding applications where strength and reliability are crucial.
Stainless Steel 440B Bolts consist of a principal composition of 16–18% chromium and 0.75–0.95% carbon, with a martensitic microstructure that exhibits high hardness and tensile strength up to 650 MPa after heat treatment. These bolts have good wear resistance and fair corrosion resistance, proving well for use in environments where mild corrosive exposure is involved. Rockwell hardness of 54-58 HRC is generally found in 440B bolts, which effectively balances strength with toughness. Harsh Metalloys ensures accurate machining, dimensional accuracy, and excellent surface finish to deliver high performance and longer life.
|
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 Bolts provide excellent hardness, strength, and moderate corrosion resistance ideal for severe mechanical and structural uses.
Custom Stainless Steel 440B Hex Bolt provides customized fastening solutions with superior strength and durability against wear for specialized industrial or engineering use.
Stainless Steel 440B Leg Bolt provides safe, corrosion-resistant fastening in structural use where strength and durability are needed under high stresses.
Stainless Steel 440B Expansion Anchor Bolt provides secure anchorage in concrete and masonry with strength and resistance to wear and environmental conditions.
Stainless Steel 440B Hex Flange Head Bolt has an incorporated washer for uniform load bearing and vibration resistance, suitable for high-stress applications.
Stainless Steel 440B Full Threaded Bolts have uniform grip and load-carrying ability along their entire length, appropriate for adjustable or heavy-duty fastening requirements.
Stainless Steel 440B Bolts are widely used in applications where there is a need for strong mechanical properties and stress-induced fastening reliability. They find extensive applications in automobile assemblies, machine parts, valve and pump parts, and tooling fixtures. Due to their wear resistance, they can be aptly used for high-friction applications, whereas moderate corrosion resistance is well-suited for chemical and marine-related applications. Harsh Metalloys offers specially customized 440B bolts that can resist stringent operating conditions, offering reliable and long-lasting fastening solutions for industrial, aerospace, and defense industries.
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