Request For Our Latest Prices On SS 440b Washers in Delhi, India!
Punit Fasteners, a well-respected manufacturer and supplier based in Delhi, India, specializes in high-quality Stainless Steel 440B Fasteners that are designed for exceptional strength, hardness, and wear resistance. These fasteners find their place in various industries, including automotive, aerospace, tooling, and heavy machinery, where components need to endure significant mechanical stress, abrasion, and moderate corrosion. Crafted with precision to adhere to international standards, Stainless Steel 440B Fasteners offer reliable and durable fastening solutions for critical applications. Punit Fasteners is committed to ensuring that every fastener is built for long-lasting performance, making them perfect for industries where durability and mechanical strength are non-negotiable.
The Stainless Steel 440B Fasteners are made from a high-carbon martensitic stainless steel alloy that contains around 16–18% chromium along with elevated carbon levels, which grants them remarkable hardness and wear resistance after heat treatment. These fasteners boast a tensile strength ranging from 760 to 1100 MPa and maintain their shape under heavy loads and stress. While their corrosion resistance is moderate compared to austenitic grades, their impressive attributes—high strength, hardness, and wear resistance—make them ideal for demanding applications where mechanical durability is key.
| 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 washers are used in complex applications where strength and durability are important. These devices are commonly found in the automotive and marine industries, and these washing machines ensure a safe and stable connection under extreme conditions. It is used in industrial machinery, aircraft parts and valve assemblies. Their excellent hardness and corrosion resistance make them ideal for environments with heavy loads and corrosive elements. Additionally, 440B washers are used at high pressures and high temperatures to provide reliable performance and long life under harsh conditions
In industries that require tough, wear-resistant fastening solutions, Stainless Steel 440B Fasteners are widely utilized. In the automotive and aerospace fields, they are essential in engines, drivetrain systems, and structural components that experience high loads and wear. The heavy machinery and tooling sectors depend on them for applications where durability and abrasion resistance are critical. Additionally, they are used in pumps, valves, and precision equipment that need both strength and moderate corrosion resistance. These fasteners consistently perform well in challenging conditions where standard stainless steels might fall short in meeting mechanical or wear requirements.
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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