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Super Duplex Stainless Steel Bars and Rods
Super duplex stainless steel bars and rods are known for their exceptional strength, resistance to corrosion, and durability, making them ideal for the most demanding environments. With a unique balance of austenitic and ferritic stainless steel structures, super duplex offers excellent mechanical properties, making it suitable for applications in marine engineering, oil and gas, and chemical processing industries.
Key Benefits of Super Duplex Stainless Steel Bars and Rods
- Superior Corrosion Resistance: With enhanced resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, super duplex stainless steel bars and rods are ideal for harsh, chloride-rich environments.
- High Strength: Super duplex stainless steel bars have nearly double the strength of standard austenitic stainless steels, making them reliable for high-stress applications.
- Fatigue and Abrasion Resistance: Super duplex stainless steel resists both fatigue and abrasion, ensuring durability in dynamic and abrasive environments.
- Long Service Life: Reduced maintenance needs and corrosion resistance lead to extended service life, minimizing downtime and repair costs.
- Cost Efficiency: Though initially more expensive, super duplex bars and rods provide long-term cost savings due to their longevity and reduced need for replacement.
Grades of Super Duplex Stainless Steel for Bars and Rods
- Super Duplex 2507 (UNS S32750): Known for superior resistance to corrosion and high strength, ideal for applications in harsh environments.
- Super Duplex 32760 (UNS S32760): Contains added elements like tungsten and copper for greater corrosion resistance, making it suitable for challenging offshore and petrochemical applications.
- Other Grades: Other super duplex grades, such as S32707, offer specific performance attributes for unique and demanding applications.
Applications of Super Duplex Stainless Steel Bars and Rods
- Oil and Gas Industry: Used in drilling equipment, valves, and pipelines on offshore platforms, where materials need to resist seawater and harsh chemicals.
- Marine Engineering: Super duplex bars and rods are ideal for shafts, fasteners, and marine hardware exposed to seawater and marine environments.
- Chemical Processing: Highly resistant to acids and chloride-rich environments, super duplex is ideal for tanks, reactors, and other chemical processing equipment.
- Pulp and Paper Industry: Resistant to acidic and chloride-laden environments, super duplex stainless steel is suitable for equipment in pulp and paper production.
- Power Generation: In power plants, super duplex stainless steel bars and rods provide strength and corrosion resistance for critical components.
Manufacturing Standards for Super Duplex Stainless Steel Bars and Rods
Our super duplex stainless steel bars and rods comply with international standards to ensure top quality and performance:
- ASTM A276: Standard specification for stainless steel bars and shapes.
- ASTM A479: Covers stainless steel bars for use in high-temperature or pressure applications.
- ASME SA182: Specification for forged or rolled alloy and stainless steel for high-pressure components.
- DIN EN 10088-3: European standard for stainless steels, including duplex grades.
- ISO 15156/NACE MR0175: Ensures suitability for sour service applications in oil and gas.
Surface Finishes for Super Duplex Stainless Steel Bars and Rods
We provide super duplex stainless steel bars and rods in various surface finishes to meet diverse application requirements:
- Hot Rolled: Industrial-grade finish for high-strength applications.
- Cold Drawn: Provides a smooth finish and accurate dimensions for applications requiring a precise finish.
- Centerless Ground: Ideal for high-precision machining applications.
- Polished: Available for decorative or architectural applications where aesthetics are important.
Customization Options
- Diameter and Length: Available in a range of diameters from 5 mm to 500 mm and customizable lengths to meet project needs.
- Cut-to-Length: Precision cutting and shaping options to match specific project requirements.
- Edge Preparation: Options for deburred, chamfered, or rounded edges for easier handling and installation.
Quality Assurance
Each super duplex stainless steel bar and rod undergoes rigorous testing to ensure optimal performance:
- Mechanical Testing: Includes tensile strength, hardness, and impact resistance tests.
- Corrosion Testing: Confirms material resistance to pitting, crevice corrosion, and chloride stress cracking.
- Dimensional Accuracy: Precision finishing ensures compatibility with various applications.
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Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry