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Nakamura Stainless is a trusted name in stainless steel manufacturing and supply, located in Pulau Ujong, Singapore. The company delivers high-performance fasteners and provides tailored solutions for demanding industrial applications. Among its premium products, Stainless Steel 440B Stud Bolts stand out for their excellent hardness, wear resistance, and strength. These bolts are widely used in environments where strong mechanical performance is critical. With its strong manufacturing capabilities and strict quality standards, Nakamura Stainless ensures reliable products. This makes them a preferred partner for clients across Southeast Asia in industries like engineering, tooling, and machinery.
Stainless Steel 440B Stud Bolts are made from a high-carbon martensitic stainless steel alloy with about 16 to 18% chromium and 0.75 to 0.95% carbon. This mix allows the material to be heat-treated for exceptional hardness and strength. When fully hardened, SS 440B shows a tensile strength between 760 and 1000 MPa and a yield strength around 450 to 550 MPa. It also has good wear and abrasion resistance, though its corrosion resistance is moderate and lower than that of austenitic grades. These features make 440B stud bolts suitable for applications where hardness, strength, and dimensional stability are more important than corrosion resistance.
| 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 |
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Stainless Steel UNS S44003 stud bolts are durable and corrosion-resistant, offering high strength for demanding applications. Ideal for industrial and mechanical use, they provide reliability in challenging environments.
Stainless Steel 440B flush head stud bolts feature a smooth, flush design for a sleek finish and secure fit. Ideal for applications requiring a low-profile fastener with high strength and corrosion resistance.
Each Stainless Steel 440B Stud Bolt shipped from the company has been packed with utmost care using the most premium packaging material to avoid rust and any damage during movement. We always focus on complete customer satisfaction by making timely delivery through prompt transportation. All relevant documents pertaining to the product are delivered to the customers at the time of delivery.
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