Request For Our Latest Prices On SS 440b Bolts in Kolkata, India!
Rinku Fasteners, located in Kolkata, India, has built a solid reputation as a manufacturer and supplier of high-performance Stainless Steel 440B Bolts, celebrated for their remarkable strength and wear resistance. With a strong focus on quality engineering and strict adherence to international standards, the company provides durable fastening solutions tailored for tough industrial settings. Their SS 440B Bolts are produced using cutting-edge manufacturing techniques, ensuring precision, reliability, and longevity. Rinku Fasteners serves a variety of industries, including automotive, machinery, construction, and defense, offering bolts that blend superior hardness, corrosion resistance, and outstanding performance. The company prioritizes customer satisfaction through prompt delivery and consistent product quality.
Stainless Steel 440B Bolts are crafted from a high-carbon martensitic stainless steel alloy that includes chromium, carbon, and trace elements to boost strength and hardness. This particular grade offers enhanced wear resistance and moderate corrosion resistance compared to standard stainless steels. When heat-treated, SS 440B achieves impressive tensile strength, excellent hardness, and superior edge retention. These bolts also demonstrate good fatigue resistance and mechanical stability under heavy loads. Their unique combination of hardness, strength, and moderate ductility makes SS 440B Bolts perfect for applications that demand durability and robust performance.
| 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 ideal for applications that require outstanding hardness, high strength, and wear resistance. You’ll often find them in the automotive sector, heavy machinery, and equipment components that face friction and impact. These bolts are also well-suited for industrial tools, pumps, valves, and cutting instruments thanks to their exceptional wear resistance. In construction and engineering projects, SS 440B Bolts ensure secure fastening in environments that demand high load-bearing capabilities.
At Rinku 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.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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