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Pengkumta Fasteners, a well-respected manufacturer and supplier based in Bangkok, Thailand, specializes in high-performance Stainless Steel 440C Bolts. These bolts are crafted for applications that require exceptional hardness, strength, and wear resistance. Utilizing cutting-edge technology and strict quality standards, they deliver outstanding reliability even in the toughest environments. Renowned for their impressive load-bearing capacity and resistance to abrasion, Stainless Steel 440C Bolts promise long-lasting performance in both industrial and structural applications. Pengkumta Fasteners is dedicated to providing innovative fastening solutions, prompt service, and top-notch products for industries in Thailand and around the globe.
Stainless Steel 440C Bolts are made from martensitic stainless steel alloys that contain 16–18% chromium, 0.95–1.20% carbon, along with trace amounts of manganese, molybdenum, and silicon. This unique blend gives them excellent hardness, wear resistance, and moderate corrosion resistance. When heat-treated, these bolts achieve remarkable tensile and yield strength, along with exceptional hardness and fatigue resistance. Although they are less ductile than austenitic grades, they maintain their structural integrity under stress and perform reliably in demanding conditions, making them perfect for high-load and high-wear fastening tasks.
| Element | Content(%) |
|---|---|
| Iron, Fe | 79.15 |
| Chromium, Cr | 17 |
| Carbon, C | 1.1 |
| Manganese, Mn | 1 |
| Silicon, Si | 1 |
| Molybdenum, Mo | 0.75 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 760-1970 MPa | 110000-286000 psi |
| Yield strength (@ strain 0.200%) | 450-1900 MPa | 65300-276000 psi |
| Bulk modulus | 166 GPa | 24100 ksi |
| Shear modulus | 83.9 GPa | 12200 ksi |
| Elastic modulus | 200 GPa | 29008 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 2-14 % | 2-14 % |
| Hardness, Rockwell B (converted from Brinell hardness) | 97 | 97 |
Material | Specification | Standards | Length | Size |
440C Stainless Steel Bolts
| IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | 3 mm to 200 mm | M 02 to M 160 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
These bolts find extensive use in the aerospace, defense, petrochemical, and marine industries, where strength and wear resistance are paramount. They are commonly found in pumps, valves, bearings, turbines, and heavy machinery that require dependable fastening under significant stress. In automotive and aerospace sectors, they are crucial for assemblies that face heat, friction, and heavy loads. The marine industry appreciates their moderate corrosion resistance and durability in saltwater environments. Additionally, Stainless Steel 440C Bolts are also used in tooling, construction, and industrial equipment, ensuring reliable fastening even in challenging operating conditions.
At Pengkumta Fasteners, we adhere to strict quality standards for our Stainless Steel 440C Bolts, ensuring quality at every step. Our commitment is evident in comprehensive documentation including marketing documents, packaging, fuming certificates, heat treatment plans, comprehensive quality control systems We offer a range of test certificates, including MTCs to EN 10204/3.1b, including PMI test certificates and 100% radiography test report. In addition, third-party certificates further prove that we adhere to strict standards. Each stainless steel 440C bolt is carefully packaged in accordance with international guidelines, ensuring safe handling and portability to ensure exceptional product quality and customer satisfaction.
Pengkumta Fasteners is a leading manufacturer and supplier of high-quality fasteners in Bangkok, Thailand, with over 8 years of experience serving global industries.
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