Home > Duplex Steel > Duplex Steel S31803 Bolts
Material | Specification | Standards | Size | Length |
Duplex Steel S31803
| IS BS ASTM | ASTM / ASME – A/ SA 479 / 479 | 3 mm | M02 to M30 |
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) | Yield Strength 0.2% Proof (MPa) min | Hardness Rockwell C (HR C) |
|---|---|---|---|---|
| Duplex Steel Bolts S31803 | 621 | 25 | 448 | 21 max |
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We offer These Duplex Steel S31803 Bolts as per DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Duplex steel S31803 bolts exhibit excellent corrosion resistance, especially in harsh environments such as marine and chemical applications. They are resistant to chloride-induced stress, making them vulnerable to cracking and suitable for use in chloride-containing environments.
Easy to manufacture: Duplex steel S31803 bolts are extremely easy to machine, weld, and fabricate, allowing for efficient manufacturing and design flexibility. This simple manufacturing process contributes to their widespread use in various industries.
Cost-effectiveness: Despite its superior characteristics, duplex steel S31803 bolts can often provide cost savings compared to other corrosion-resistant alloys. This is due to their low nickel content and the materials available, making them a budget-friendly choice for many applications.
Hardness: Due to their balanced microstructure, duplex steel S31803 bolts offer superior hardness compared to other stainless steel grades. This rigidity resists shock and fatigue loads and reduces the risk of accidental failure.
Strength: These bolts have high strength derived from their dual microstructure of austenite and ferrite phases. This maintains their mechanical properties at high and low temperatures, ensuring reliability and durability under operating conditions.
Duplex Steel S31803 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 commonly used in offshore platforms, subsea pipelines, and machinery, where they are exposed to corrosive environments, high pressures, and heat. Their corrosion resistance and stress corrosion cracking make them ideal for such applications.
Marine Applications: Duplex steel bolts are used in marine environments for shipbuilding, offshore platforms, and marine structures. Their corrosion resistance to seawater makes them suitable for these applications.
Desalination Plants: Duplex steel bolts are used to connect pumps, valves and other equipment involved in desalination systems in desalination plants because of their resistance to chloride-induced stress corrosion cracking and good pitting resistance.
Pulp and Paper Industry: Duplex steel bolts are used for digesters, bleachers, towers, evaporators and other equipment in the pulp and paper industry, where they can withstand corrosive chemicals and high temperatures involved in processing the mouth of the
Chemical Applications: Duplex steel bolts are preferred due to corrosion and corrosion resistance in chemical plants where chemicals and strong acids are used. They are commonly used in reactors, heat exchangers and vessels.
Specify application requirements: Specify the specific conditions under which the bolts will be used. Consider factors such as temperature, pressure, corrosion resistance, and load-carrying capacity.
Corrosion Resistance: Duplex steel S31803 is known for its excellent corrosion resistance, especially in harsh environments such as marine or chemical processes. Make sure the bolts have the necessary corrosion resistance for your specific application.
Strength Requirements: Determine the strength requirements of your application and select a bolt with the proper tensile strength, yield strength, and stiffness. Duplex steel S31803 bolts typically provide high strength and are suitable for demanding applications.
Size and Design: Determine the appropriate size and thickness of bolts based on the needs of your application. Consider factors such as diameter, length, and thread pitch.
Material options: Duplex steel S31803 bolts provide excellent corrosion resistance and high strength, making them suitable for various applications. But ensure that this product is compatible with the environment in which the bolts will be used.
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