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Yasin Fasteners in Istanbul, Turkey, is a well-established manufacturer and supplier of stainless steel 440B fasteners, which have superior hardness, wear resistance, and strength. They are produced using a high-carbon martensitic stainless steel alloy and are suited for use in conditions where durability and moderate corrosion resistance are desired. Yasin Fasteners provides a comprehensive assortment of 440B fasteners, including nuts, bolts, screws, and washers, all produced in accordance with international standards and customized to the exact requirements of industries like aerospace, automotive, tooling, and machinery.
Stainless steel 440B fasteners have high carbon composition (approximately 0.6–0.75%) and around 16–18% chromium content, enabling them to be heat-treated to attain high hardness and wear resistance. In comparison to 440A, 440B is more carbon content and provides better strength and durability. Although they offer moderate corrosion resistance, these fasteners are best utilized in dry or slightly corrosive environments. Martensitic structure provides tremendous mechanical strength, toughness, and fatigue life, thus making 440B fasteners ideal for high-wear and high-stress applications.
| 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.
440B stainless steel fasteners find applications in precision instruments, bearings, cutting tools, auto parts, and aerospace parts. They are suitable for applications where wear resistance, high strength, and dimensional stability are requirements. These fasteners provide secure, lasting fastening in severe conditions with a combination of hardness and mechanical properties along with moderate corrosion resistance.
We offer high quality stainless steel 440B fasteners, ensuring quality control and compliance with international standards. Choose the reliability and durability of our fasteners, which deliver exceptional performance in challenging industrial applications. Each fastener is carefully packaged to prevent damage during transit, ensuring that it arrives in the best possible condition and to your specifications. Trust us for high-quality fasteners that provide seamless and reliable connections, even in the most demanding environments.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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