Request For Our Latest Prices On SS 440b Bolts in Da Nang, Vietnam!
Poang Fasteners is a reliable manufacturer and supplier of Stainless Steel 440B Bolts based in Da Nang, Vietnam. We specialize in providing high-performance fastening solutions for industries that demand exceptional hardness and wear resistance. SS 440B is a high-carbon martensitic stainless steel that strikes a great balance between mechanical strength, durability, and moderate corrosion resistance. Our SS 440B Bolts are designed to meet ASTM, DIN, and ISO standards, ensuring precision and reliability in every application. These bolts find their place in automotive, aerospace, petrochemical, and medical industries, where secure fastening, dimensional stability, and long service life under high mechanical stress are crucial.
Stainless Steel 440B Bolts consist of 16–18% chromium and 0.75–1.0% carbon, along with small amounts of manganese, molybdenum, and silicon. This martensitic grade can achieve a tensile strength of 730–950 MPa and hardness levels up to 58 HRC when properly heat-treated. SS 440B offers excellent wear and abrasion resistance while maintaining moderate corrosion resistance in less harsh environments. These bolts hold their shape under high loads and mechanical stress, making them perfect for precision engineering. Their outstanding hardness and strength make them ideal for demanding and heavy-duty fastening tasks.
| 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
|
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max | – |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
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 bolts are widely used in applications requiring high strength and corrosion resistance. Typical applications include automotive components, marine components, and industrial equipment that require extended durability under pressure. Their excellent hardness and corrosion resistance make them suitable for valve assemblies, pumps and high pressure environments. In addition, 440B bolts are used in the aerospace and defense industries as well as the food processing and pharmaceutical industries, providing reliable and durable performance under harsh conditions
Poang Stainless Steel 440B Bolts are commonly found in automotive assemblies, engine components, and braking systems where strength and hardness are essential. In the aerospace industry, they are used in structural components and fastening systems that face high loads. In the medical field, SS 440B Bolts are favored for orthopedic instruments and precision devices due to their durability. They are also widely utilized in petrochemical plants, refineries, marine equipment, and heavy machinery, where robust fastening is critical. Their remarkable wear resistance ensures they perform well in demanding environments.
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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