Request For Our Latest Prices On SS 440b Bolts in Delhi, India!
Punit Fasteners, a top-notch manufacturer and supplier based in Delhi, India, specializes in high-quality Stainless Steel 440B Bolts that are built for outstanding strength, hardness, and wear resistance. These bolts find their place in various industries, including automotive, aerospace, tooling, and heavy machinery, where components need to handle significant mechanical stress and some corrosion. Thanks to their remarkable durability and precision engineering, Stainless Steel 440B Bolts offer reliable fastening solutions for even the toughest applications. Punit Fasteners ensures that these bolts meet international standards, providing exceptional performance and a long lifespan, even in challenging conditions.
Crafted from a high-carbon martensitic stainless steel alloy with about 16–18% chromium and increased carbon content, these bolts gain impressive hardness and wear resistance after heat treatment. They achieve tensile strength levels ranging from 760 to 1100 MPa while maintaining good dimensional stability under mechanical stress. Although they offer moderate corrosion resistance, their standout features are their exceptional strength, hardness, and abrasion resistance, making them perfect for situations where wear and mechanical load are crucial.
| 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
Stainless Steel 440B Bolts are widely used in scenarios that demand high-strength, wear-resistant fasteners. In the automotive and aerospace sectors, you’ll find them in engines, drive systems, and structural assemblies where strength and durability are essential. The heavy machinery and tooling industries rely on them for their ability to withstand high loads and abrasive conditions. Additionally, they’re utilized in pumps, valves, and precision equipment where both hardness and moderate corrosion resistance are key. These bolts provide dependable fastening performance in environments where standard stainless steels just can’t keep up with the mechanical and wear challenges.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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