Request For Our Latest Prices On SS 440b Nuts in Canberra, Australia!
At Hazlewood Fasteners, we manufacture and supply Stainless Steel 440B Nuts in Canberra, Australia—engineered for exceptional hardness, wear resistance, and durability. Made from premium-grade martensitic stainless steel, 440B offers a perfect balance between strength and corrosion resistance. These nuts are ideal for heavy-duty and high-precision applications where both mechanical toughness and surface integrity are essential. Designed to perform under stress, heat, and vibration, our 440B nuts ensure reliable fastening and long service life. At Hazlewood Fasteners, every nut is crafted with precision to meet the highest industry standards for quality and performance.
Stainless Steel 440B Nuts are composed of 16–18% chromium, 0.75–0.95% carbon, and small additions of manganese, silicon, and molybdenum. This martensitic stainless steel achieves excellent hardness—up to Rockwell C 56 after heat treatment—while maintaining good corrosion resistance. The alloy offers high tensile strength, superior wear resistance, and dimensional stability at elevated temperatures. 440B provides slightly better corrosion resistance than 440C, with comparable strength and toughness. It performs exceptionally well under friction, impact, and mechanical stress, making it a dependable choice for demanding industrial and precision-engineering 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.
Stainless Steel 440B Nuts are widely used in aerospace, automotive, defense, and industrial machinery, where high strength and wear resistance are critical. They are ideal for valves, pumps, bearings, cutting tools, and rotating equipment that experience friction or high torque. In chemical processing, marine, and engineering environments, these nuts offer strong resistance to corrosion and abrasion. Their superior hardness and durability make them suitable for precision instruments, heat-treating equipment, and mechanical assemblies operating under harsh conditions. Hazlewood Fasteners’ 440B Nuts deliver unmatched reliability, longevity, and fastening integrity in demanding industrial applications.
Our commitment to excellence at Hazlewood Fasteners is reflected in the stringent standards to which we hold our stainless steel 440B nuts. Each nut is manufactured to specific industry standards and securely fastened using advanced techniques. Our comprehensive documentation includes EN 10204/3.1b certificates, PMI test certificates, and 100% radiography test reports, with additional third party inspection certifications ensuring quality and reliability than any. We pride ourselves on our meticulous packaging, which guarantees that the stainless steel 440B nuts arrive in pristine condition, meeting the stringent requirements of our esteemed customers absolutely.
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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