Trison Overseas LLP
Stainless Steel Grade

Duplex Steel Steel Grade Specifications

Duplex stainless steels have a mixed microstructure of austenite and ferrite. This gives them high mechanical strength, good weldability, and exceptional resistance to stress corrosion cracking.

Key Advantages & Characteristics

✓High structural strength allowing design weight reduction
✓Excellent general and localized corrosion resistance
✓Enhanced resistance to erosion-corrosion and fatigue
✓Cost-effective alternative to high-nickel alloys

Chemical Composition

Technical Specifications

Chromium (Cr)
21.00 - 28.00%
Nickel (Ni)
3.50 - 8.00%
Molybdenum (Mo)
0.10 - 4.50%
Nitrogen (N)
0.08 - 0.35%
Iron (Fe)
Balance

Mechanical Properties

Technical Specifications

Tensile Strength (MPa)
620 - 800
Yield Strength 0.2% (MPa)
400 - 550
Elongation (%)
20 - 30
Hardness (HB)
290 max

Available Product Forms in Duplex Steel

We stock and supply a comprehensive range of Duplex Steel structural steel, piping systems, and mechanical components globally.

Duplex Steel Pipe

Industrial seamless and welded pipes manufactured to handle severe pressures, fluid flow, and chemical environments. Available in various wall schedules, lengths, and end configurations.

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Duplex Steel Tube

Precision instrumentation, heat exchanger, and condenser tubes built for precise dimensional tolerances and structural thermal performance. Features clean finishes and high concentricity.

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Duplex Steel Sheet

Premium hot rolled (HR) and cold rolled (CR) steel sheets. Offered in a wide variety of finishes including mirror, hairline, matte, and chequered, matching stringent architectural or industrial needs.

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Duplex Steel Plate

Heavy duty thick plate materials engineered for pressure vessel shells, boilers, structural frames, and severe wear environments. Certified to handle high pressure loads and extreme conditions.

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Duplex Steel Coil

Sturdy, long strip steel coils in HR (hot rolled) and CR (cold rolled) conditions, optimized for stampings, profile drawings, tube rollings, and slitting distributions.

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Duplex Steel Round Bar

Bright and black round bars offering excellent dimensional accuracy, tensile strength, and machinability. Designed for shafts, bolts, gears, and high stress mechanical components.

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Duplex Steel Rod

Industrial rod materials and wire rods with reliable mechanical strength, ductile qualities, and chemical uniformity for drawing, forging, and structural operations.

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Duplex Steel Wire

Premium metal wires in spool and coil forms, ranging in diameters from fine sizes to heavy wire. Highly uniform, corrosion resistant, and resilient for drawing and weave projects.

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Duplex Steel Pipe Fitting

Premium butt-weld and forged pipe fittings including elbows, tees, reducers, unions, and couplings. Precision engineered to form secure, leak-proof transitions in industrial piping systems.

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Duplex Steel Flange

Heavy forged flanges including Slip-On, Blind, Weld Neck, Socket Weld, and Threaded configurations. Designed to connect pipes, valves, pumps, and other equipment with secure sealing.

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Duplex Steel Fastener

Enterprise grade bolts, studs, heavy hex nuts, washers, and threaded rods. Built to withstand high torque, extreme vibrations, heat, and chemical corrosion in critical joints.

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Duplex Steel Wire Mesh

Industrial woven and welded wire mesh screens, optimized for chemical filtering, agricultural separations, architectural screens, and safety barriers.

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Duplex Steel Angle

L-shaped structural angles offering high torsional stability, uniform dimensions, and high load capacity for structural framing, brackets, and construction.

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Duplex Steel Channel

C-shaped structural channels providing outstanding bending stiffness, load capacity, and durability for columns, support structures, and industrial machinery bases.

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Duplex Steel Beam

Heavy structural H-beams and I-beams built to sustain large vertical loads and spans in industrial buildings, bridges, and infrastructure projects.

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