Aditya Stainless, based in Kolkata, India, stands out as a leading manufacturer and supplier of Stainless Steel 440C Bolts. These bolts are specifically designed for applications that demand outstanding hardness, wear resistance, and protection against corrosion. Crafted from high-carbon martensitic stainless steel, they are precision-engineered to deliver maximum strength and durability, even in the toughest mechanical and environmental conditions. Aditya Stainless ensures that their bolts meet international quality standards, providing dimensional accuracy, an excellent surface finish, and reliable performance. Our 440C bolts are perfect for industries like aerospace, defense, automotive, tooling, and high-precision engineering, where both strength and corrosion resistance are crucial.
Stainless Steel 440C Bolts are made with a high carbon content (0.95–1.20%), chromium (16–18%), and very little nickel. This unique blend gives them impressive hardness and great corrosion resistance in mild environments. After undergoing heat treatment, 440C can reach a tensile strength of up to 760–980 MPa and a Rockwell hardness of 58–60 HRC. These bolts also boast excellent dimensional stability, superior wear resistance, and moderate toughness. They are perfect for applications that require high strength and abrasion resistance, merging mechanical performance with the corrosion-resistant qualities of stainless steel.
Material |
Specification |
Standards |
Size |
Length |
Stainless Steel 440C Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
Element | SS 440C |
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 440C |
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 440C bolts are very strong, high strength fasteners with excellent damage resistance. They offer moderate corrosion resistance and are ideal for high stress and high damage applications in industrial and industrial applications.
Custom Stainless Steel 440C Hex Bolt is a high-strength fastener with a square head, specifically designed to fit. It provides exceptional strength, wear resistance and durability for tough applications.
Stainless Steel 440C Leg Bolt is a high-strength, corrosion-resistant fastener with a long threaded shaft and flat head, designed for more demanding applications requiring durability and abrasion resistance
Stainless Steel 440C Expansion Anchor Bolt is a high-strength fastener designed to secure concrete or masonry products. It expands in the hole as it tightens, creating a reliably stable surface.
Stainless Steel 440C Hex Flange Head Bolt features a hexagonal head with an integrated flange for increased weight distribution. Provides superior strength and wear resistance for complex industrial applications.
Stainless Steel 440C Full Threaded Bolts have threads along their entire length, providing consistent clamping force and high hardness. They are ideal for high-stress applications requiring strength and wear resistance.
Every Stainless Steel 440C bolt is packaged using high-quality material for protection from damage, rust, or defects during shipping. We focus on the satisfaction of customers by ensuring prompt delivery through effective transportation methods. In addition all relevant documentation related to the product including certificates of Quality are provided to clients. at the time of delivery. Assuring them of the product’s compliance with the highest industry standards. At every step we maintain a commitment to quality and reliable service.
Stainless Steel 440C Bolts find extensive use in areas that require high strength, hardness, and resistance to wear and corrosion. They are commonly found in industries such as aerospace, defense, automotive, medical devices, valve manufacturing, high-performance tools, and bearing assemblies. These bolts are particularly suited for mechanical parts that endure heavy wear and stress, like hydraulic equipment, mold tooling, and high-speed machinery. Their corrosion resistance makes them ideal for mildly corrosive environments, while their impressive hardness ensures precision fastening in critical load-bearing structures.
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