Lecong Stainless, a reputable manufacturer and supplier based in Da Nang, Vietnam, offers top-notch Stainless Steel 440C Fasteners designed for strength, wear resistance, and durability. SS 440C is a high-carbon martensitic stainless steel that can achieve remarkable hardness when heat-treated, making it one of the toughest stainless grades out there. These fasteners blend impressive mechanical strength with decent corrosion resistance, making them perfect for high-stress, heavy-duty, and wear-intensive environments. With a commitment to precision engineering and international standards, Lecong Stainless guarantees that their SS 440C Fasteners provide long-lasting reliability for critical applications across various industries.
Stainless Steel 440C Fasteners are made up of about 1% carbon and 16–18% chromium, along with trace elements like molybdenum and manganese that boost their performance. This unique composition results in high tensile strength, outstanding hardness, and excellent wear resistance after proper heat treatment. Mechanically, SS 440C fasteners show remarkable dimensional stability, fatigue resistance, and durability even under extreme loads. While their corrosion resistance is moderate compared to austenitic grades, they hold up well in freshwater, mild atmospheric conditions, and situations where hardness and strength are key.
Specification : ASTM A193 / ASME SA193
Dimensions : ASME B18.2.1, ASME B18.3, DIN 931, DIN 933, DIN 934, DIN 7991, DIN 976
Standard : DIN, GB, BS, ISO, IS, JIS, ASTM, ASME, EN, etc.
Size : M02 to M33
Length : 3 mm to 200 mm
Threads : ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Types : Nuts, Bolts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, Foundation Bolts, Structural Bolts.
| Grade | C | Mn | Si | P | S | Cr | |
| 440C | min. | 0.95 – 1.20 | – | – | – | – | 16.0 |
| max. | 0.12 | 1.0 | 1.00 | 0.04 | 0.030 | 18.0 | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 440C | 758 | 448 | 14 | 95 | – |
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These nuts offer high corrosion resistance and excellent strength due to the high carbon content in 440c stainless steel. They are available in sizes ranging from M3 to M48 and meet various industrial standards for dimensions and tolerances.
440c Stud Bolts provide exceptional corrosion resistance and high tensile strength. They come in diameters from M6 to M30 and lengths from 50mm to 1000mm, suitable for demanding applications requiring precision and durability.
440c Bolts are ideal for harsh environments and offer superior corrosion resistance and high strength. They are available sizes from M5 to M36, with varying lengths and thread specifications to meet diverse application needs.
These threaded rods are known for their excellent corrosion resistance and high tensile strength. They are typically available in diameters from M6 to M30 and lengths up to 3000mm, suitable for use in various industrial settings.
440c screws provide robust corrosion resistance and high strength. Commonly available in sizes from M3 to M20, lengths varying based on application needs, they are ideal for precision and heavy-duty fastening tasks.
440C washers offer outstanding corrosion resistance and durability, making them ideal for distributing loads and protecting surfaces. They are available in sizes from M3 to M36 and come in various thicknesses to meet specific application needs. Their robust properties ensure reliable performance in demanding environments.
At Lecong Stainless we ensure that our Stainless Steel 440C Fasteners undergo rigorous quality tests, including Hardness Test, PMI Testing, Chemical Analysis, and IGC Test, to guarantee excellence. We provide detailed documentation such as invoices with HS codes, packaging lists, Certificates of Origin, and Guarantee Letters. Additionally, Third-Party Inspection Certificates ensure complete client satisfaction and reliability.
These fasteners find their way into a variety of sectors, including aerospace, automotive, defense, medical, and industrial machinery. They’re commonly used in the production of pumps, valves, precision instruments, ball bearings, and heavy-duty mechanical components. In the medical field, they play a crucial role in surgical instruments and orthopedic tools that demand high hardness and wear resistance. Additionally, these fasteners are well-suited for applications in processing plants, tooling, and equipment that face abrasive conditions. With their long service life and outstanding mechanical properties, SS 440C Fasteners are a dependable choice for demanding and high-performance engineering needs.
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