Request For Our Latest Prices On SS 440b Bolts in Doha, Qatar!
Murad Fasteners, a reputable manufacturer and supplier based in Doha, Qatar, specializes in high-quality Stainless Steel 440B Bolts that are perfect for applications demanding outstanding hardness, wear resistance, and mechanical strength. Crafted with precision machining and advanced heat-treatment techniques, Murad Fasteners guarantees accurate threading, consistent dimensions, and dependable performance. These bolts meet international standards and are particularly suited for high-stress and precision industrial settings. Murad Fasteners caters to various industries, including oil and gas, power generation, aerospace, and heavy machinery, offering secure fastening solutions that promise long-lasting durability and reliable operation.
Stainless Steel 440B Bolts are constructed from a high-carbon martensitic stainless steel alloy, which contains around 16–18% chromium and 0.75–0.95% carbon. This unique composition allows for heat treatment that achieves impressive hardness and strength while still providing good wear resistance. Their mechanical properties boast high tensile and yield strength, excellent fatigue resistance, superior hardness, and moderate corrosion resistance. These bolts maintain their mechanical integrity and dimensional stability even under heavy loads and repeated stress, making them ideal for demanding and precision 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.
You’ll find Stainless Steel 440B Bolts commonly used in valves, pumps, bearings, tooling, and high-load mechanical assemblies where wear resistance and strength are essential. They are frequently utilized in oil and gas equipment, industrial machinery, aerospace components, and precision engineering systems. These bolts excel in environments that experience mechanical wear, high stress, and moderate corrosive conditions, ensuring secure fastening, consistent performance, and long-term reliability in industrial and heavy-duty operations.
At Murad 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.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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