Home > Duplex Steel > Duplex Steel Bolts
| Specifications | ASTM A479 & ASME SA479 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 to 200 MM |
| Duplex Steel Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Duplex Steel 2205 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
Duplex Steel Bolts | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
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We offer These Duplex Steel Bolts as per DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Duplex steel bolts exhibit excellent corrosion resistance, especially in aggressive environments such as seawater and acidic and chloride-containing solutions. This corrosion resistance helps extend and reduce the life of structures and equipment maintenance costs.
High strength: Duplex steel bolts have higher strength than austenitic stainless steel, providing greater load-carrying capacity and mechanical stress resistance. This makes them suitable for applications requiring higher strength-to-weight ratios.
High toughness: Duplex steel bolts combine high strength with excellent toughness, allowing them to withstand impact and fatigue loads without breaking. This property is particularly useful in dynamic and high-stress environments.
Excellent weldability: Duplex steel bolts exhibit excellent weldability, making them easy to manufacture and assemble. Normal welding techniques can be used without significant defects or mechanical quality degradation risk.
Wide Temperature Range: Double-sided steel bolts retain their mechanical properties over a wide range of temperatures, from cryogenic to elevated temperatures, making them suitable for operational conditions
Versatility: Duplex steel bolts are versatile and can be used in a variety of industries and applications, including marine, oil and gas and chemical processing, construction, and automotive, among others, among
Strength against stress cracking: Duplex steel bolts resist stress corrosion cracking (SCC), a common problem in high chloride environmentas. This property enhances their reliability and longevity in corrosive environments.
Duplex Steel Bolts applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Oil and Gas Industry: Duplex steel bolts are used in offshore drilling rigs, subsea equipment, pipelines, and refineries due to their excellent corrosion resistance in seawater and resistance to stress corrosion cracking (SCC).
Marine Applications: Two-dimensional steel cables are used to fasten components on ships, offshore platforms, offshore structures and dock systems in marine environments where seawater corrosion is common.
Chemical industry: Double-sided steel bolts are used in the chemical industry for pumps, valves, heat exchangers, reactors and other equipment, where resistance to chemical corrosion and high temperatures is required.
Construction: Construction projects use two-dimensional steel cables to connect structures to bridges, buildings, and other structures in harsh environments in coastal areas or industrial areas in
Power generation: Dual steel bolts are used for turbines, boilers, heat exchangers and other equipment in power plants, including nuclear, fossil fuel and renewable energy facilities, where corrosion resistance and high strength are required.
Automotive and Transportation: Duplex steel bolts are used in the automotive and transportation industries for critical fastening applications, such as engine components, chassis and suspension systems, where high strength and corrosion resistance are required
Corrosion Resistance: Check where the bolts will be used. Duplex steel bolts offer excellent corrosion resistance, but the specific alloy inside can affect their performance in various corrosive environments. Consider factors such as seawater inputs, acidic solutions, or chloride environments and choose duplex steel grade as appropriate.
Power Requirements: Determine the load and power requirements of your application. Duplex steel bolts provide greater strength than austenitic stainless steel, but different grades can differ in strength characteristics. Select a duplex steel bolt with adequate tensile strength, yield strength, and stiffness to withstand the applied load without failure.
Temperature Stability: Consider the temperature stability of the bolt. Duplex steel bolts retain mechanical properties over various temperatures, but extreme temperatures can affect performance. Ensure that the duplex steel bolts selected can withstand the temperature conditions you intend to use without compromising their mechanical properties.
Size and Dimensions: Choose dual steel bolts with the correct size, thread pitch, length and head style to ensure compatibility with mating components and proper fitment in the application. Consider factors such as yarn type (e.g., coarse or fine), head style (e.g., hex, socket, or flat), and overall dimensions based on application requirements.
Environmental Conditions: Note any environmental conditions that may affect the performance of the bolts, such as vibration, shock, or cyclic loads. Select duplex steel bolts with adequate materials to cope with these environmental conditions and prevent failure early.
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