Pulau Ujong, Singapore–based Andre Stainless is a reliable producer, supplier, and exporter of high–quality Stainless Steel 440B Fasteners. Practitioners of precise engineering and persistent quality, our fasteners are offered in different shapes, sizes, dimensions, and specifications to suit the various requirements of international industries. Produced from high-carbon martensitic stainless steel, Stainless Steel 440B Fasteners are famous for their superior strength, high wear resistance, and durability under tough conditions. With superior performance in chemical processing, marine, and elevated-temperature applications, Andre Stainless guarantees reliability and excellence in all projects, with long-term relationships through quality assurance and prompt service.
Stainless Steel 440B Fasteners are made from UNS S44003, which is a high-carbon martensitic stainless steel alloy with an approximate percentage of 17–19% chromium, 0.85–0.95% carbon, and small traces of manganese, silicon, and phosphorus. These fasteners show superior hardness, high tensile strength, and superior wear resistance, rendering them superior for high-stress applications. They also possess fair corrosion resistance and excellent magnetic permeability. Dimensionally stable with good strength, 440B fasteners show superior performance in abrasive and heat-enduring applications, lasting longer than most traditional stainless steels in demanding mechanical situations.
| 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 |
Contact us to get a quick quote for your requirement.
Highly resistant to corrosion, Stainless Steel 440B Nuts are designed for high-strength applications. Available in sizes ranging from M3 to M24, they are precision-manufactured to ensure reliable performance and durability.
Stainless Steel 440B Stud Bolts offer excellent corrosion resistance and are ideal for demanding environments. Typically available in lengths from 50mm to 500mm and diameters from M6 to M30, they provide robust fastening solutions for various industrial applications.
Stainless Steel 440B Bolts exhibit superior corrosion resistance and are suitable for harsh conditions. They come in sizes from M6 to M30 and lengths ranging from 10mm to 300mm. Their high strength and durability make them ideal for critical applications.
With excellent corrosion resistance, Stainless Steel 440B threaded rods are used in heavy-duty applications. They are available in lengths from 100mm to 2000mm and diameters ranging from M6 to M30, offering versatility and strength in fastening solutions.
Stainless Steel 440B screws provide high corrosion resistance and are used in various applications. Sizes range from M3 to M20, with 10mm to 150mm lengths. They are known for their strength and reliability in tough environments.
Stainless Steel 440B washers offer exceptional corrosion resistance, crucial for distributing loads and reducing friction. They are available in sizes from M3 to M30, with standard thicknesses that ensure durability and performance in high-stress applications.
Here at Andre Stainless, Pulau ujong, Pulau ujong, our primary concern is a faultless customer experience by providing comprehensive documentation for our premium Stainless Steel 440B Fasteners. This includes all the necessary documents like commercial invoice, packaging list, heat treatment chart, quality assurance plan and the NABL-approved lab test report. Additional offerings include MTC, PMI Test Certificate, radiography test reports, and Third-Party Inspection Certificates, assuring you of quality and customer satisfaction.
Stainless Steel 440B Fasteners find extensive usage in applications that require endurance, resistance to wear, and modest protection against corrosion. Aerospace, automobile, marine, and medical industries are the typical sectors where they find application in parts such as valves, surgical equipment, bearings, and joints in structures. The fasteners are particularly beneficial in extreme operating conditions like chemical plants and offshore platforms because of their resistance to high temperatures and mechanical loads. The high hardness and dimensional stability make them ideal for use in cutting tools, engine parts, and rotating parts where dependability and durability are a must.
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