Request For Our Latest Prices On SS 440b Bolts in Tunis, Tunisia!
Lina Fasteners is a trusted manufacturer and supplier located in Tunis, Tunisia, focusing on top-notch Stainless Steel 440B Fasteners designed for precision and high-strength applications. Thanks to their advanced manufacturing techniques and rigorous quality control processes, the company produces fasteners that meet international standards and cater to customer needs. Lina Fasteners serves a variety of industries, including aerospace, automotive, tooling, petrochemical, and heavy engineering. Renowned for their exceptional hardness, wear resistance, and precise dimensions, these Stainless Steel 440B Fasteners ensure reliable performance even in the toughest environments. The company’s dedication to precision engineering, timely delivery, and customer satisfaction has built a solid reputation in both regional and global fastening markets.
Stainless Steel 440B Fasteners are crafted from a high-carbon martensitic stainless steel alloy, with chromium as the main element for corrosion resistance. This unique composition allows the material to be heat-treated, resulting in impressive hardness and outstanding wear resistance. In terms of mechanics, 440B fasteners showcase high tensile strength, remarkable hardness, and good fatigue resistance. While they offer moderate corrosion resistance compared to austenitic grades, they still maintain excellent dimensional stability and load-bearing capacity. These characteristics make 440B fasteners ideal for applications that demand strength, precision, and wear resistance under high-stress conditions.
| 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 Fasteners are widely utilized in scenarios where high strength, hardness, and wear resistance are essential. Common applications include aerospace components, automotive assemblies, industrial machinery, tooling equipment, and precision instruments. They also find their place in petrochemical plants, as well as in pump and valve components, and bearing-related applications.
At Lina Fasteners, we adhere to strict quality standards for our Stainless Steel 440B bolts, with accurate labeling and complete documentation demonstrating our commitment. Our packaging system includes durable products, fumigation certificates and extensive heat treatment records. We use rigorous quality control methods, including MTC, PMI test certificates and 100% radiographic test reports, to ensure exceptional quality and reliability. Each bolt is carefully fitted with protective coatings to prevent damage in transit, ensuring that it arrives in pristine condition, ready for emergency use.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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