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Poang Fasteners is a well-respected manufacturer and exporter of Stainless Steel 440B Fasteners based in Da Nang, Vietnam. We provide high-strength fastening solutions tailored for demanding industrial applications. SS 440B is a high-carbon martensitic stainless steel, celebrated for its impressive hardness, wear resistance, and decent corrosion resistance. Our 440B fasteners are crafted in accordance with ASTM, DIN, ISO, and other international standards, guaranteeing durability, precise dimensions, and reliable performance even in tough conditions. These fasteners find their place in various industries, including automotive, aerospace, mechanical engineering, and oil & gas, where high hardness and mechanical strength are crucial for long-lasting reliability.
Stainless Steel 440B Fasteners are composed of 16–18% chromium, 0.75–1.20% carbon, along with trace elements of manganese, silicon, and molybdenum. The increased carbon content compared to 440A boosts strength and edge retention while still offering moderate corrosion resistance. Their mechanical properties feature tensile strength ranging from 760–1100 MPa, yield strength around 450 MPa, and remarkable hardness after heat treatment (up to 58 HRC). These characteristics ensure excellent wear and abrasion resistance, along with a high load-bearing capacity, making 440B fasteners perfect for applications that demand both durability and mechanical toughness.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.74 g/cm3 | 0.280 lb/in³ |
| Melting point | 1482°C | 2700°F |
|
C
|
Si
|
Mn
|
P
|
S
|
N
|
Cr
|
Cu
|
Mo
|
Ni
|
Ti
|
V
|
|---|---|---|---|---|---|---|---|---|---|---|---|
|
0,85 – 0,95
|
–
|
–
|
–
|
–
|
–
|
17,00 – 19,00
|
–
|
0,90 – 1,30
|
–
|
–
|
0,07 – 0,12
|
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.
Stainless steel 440B Fasteners are widely used in a variety of complex applications due to their strength and corrosion resistance. They are commonly found in the manufacture of industrial machinery, automotive parts and aerospace components where high durability and durability are required Their resistance to corrosion and oxidation makes them suitable for use in marine environments around, heavy machinery and more complex objects. In addition, they are used in high-performance devices and assemblies to ensure reliable and durable communications.
Poang Stainless Steel 440B Fasteners are extensively utilized in the automotive and aerospace sectors for components that face high stress and wear. In the oil & gas and petrochemical industries, they are essential for pumps, valves, and drilling equipment where strength and wear resistance are paramount. These fasteners also play a vital role in mechanical tools, surgical instruments, and industrial machinery, ensuring dependable performance in abrasive and corrosive environments. Additionally, 440B fasteners are used in marine hardware, power generation, and defense equipment, showcasing their versatility and reliability across various applications.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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