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At Hazlewood Fasteners in Canberra, we forge excellence into every detail. Our stainless steel 440B fasteners are designed for applications that demand uncompromising hardness, wear resistance, and enduring strength. Engineered from a high-carbon martensitic stainless steel, these fasteners combine superior toughness with moderate corrosion resistance, ensuring steadfast performance under extreme mechanical stress. Precision-crafted and heat-treated for maximum durability, Hazlewood Fasteners’ 440B fasteners are the embodiment of resilience and precision. When the margin for error is zero, these fasteners deliver absolute reliability—securing structures, machinery, and systems with the confidence only true engineering mastery can provide.
Stainless steel 440B fasteners are composed of a high-carbon martensitic alloy enriched with chromium for corrosion resistance and strength. Through precision heat treatment, they achieve exceptional hardness, tensile strength, and wear resistance, maintaining dimensional stability even under heavy mechanical loads. These fasteners exhibit outstanding fatigue resistance and moderate corrosion protection in mild atmospheres, fresh water, and some industrial environments. 440B’s high hardness makes it ideal for applications demanding both edge retention and mechanical endurance—delivering a balance of power and precision that defines Hazlewood Fasteners’ engineering excellence.
| 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 fasteners excel in environments that demand superior hardness, abrasion resistance, and strength. They are widely used in heavy machinery, power generation, aerospace assemblies, and automotive systems where performance under pressure is critical. In precision tools, valve components, and industrial equipment, they offer unmatched stability and wear resistance. These fasteners also perform reliably in moderate corrosive settings, combining long-term durability with mechanical precision. Whether securing high-speed components or structural frameworks, Hazlewood Fasteners’ 440B fasteners provide steadfast connections—crafted for industries where strength, accuracy, and endurance define success.
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.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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