Duplex Steel Circles

Trusted duplex steel circle manufacturer in India for high-strength forged and plate-cut circles.

Duplex Steel Circles
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Duplex Steel Circles

Suntech Forge India is a trusted duplex steel circle manufacturer in India, offering high-strength forged and plate-cut circles with superior corrosion resistance and durability.

verified_user Excellent Corrosion Resistance
workspace_premium High Strength & Durability
shield_with_heart Withstands Extreme Conditions
military_tech Long Service Life

Duplex Steel Circle Specification

- OD

40 to 3000 mm

- Thickness

1/2 in to 12 in

- Width

3 in to 38 in

- Height

Up to 12 in or custom

- Max Weight

15,000 lbs

- Method

Plate Cutting / Forged

Product Overview

Duplex steel circles are widely used in offshore, chemical processing, and marine industries due to their excellent strength and corrosion resistance.

Standards

  • UNS S31803
  • UNS S32205
  • WNR 1.4462
  • EN 10088-2 / 10222-5
  • ISO 15156

Forging Method

  • Open Die Forging
  • Closed Die Forging
  • Impression Die Forging
  • Drop Forging
  • Upset Forging
  • Hot and Cold Forging

Our Capability

  • Heat Treatment
  • Forging
  • Machining and Sawing

Value Added Services

  • Annealing
  • Heat Treatment
  • Age Hardening
  • Hardening / Normalizing
  • Quenched and Tempering

Surface Finish

  • Forged Black
  • Proof Machined

Packaging

  • Wooden Case
  • Carton Box
  • Protective Paper

Applications

  • Marine Industry
  • Chemical Processing
  • Pharmaceutical
  • Nuclear Power
  • Food Processing

Testing and Quality Assurance

  • Ultrasonic Testing
  • PMI Testing
  • NDT Testing
  • Liquid Penetrant Testing

Benefits of Duplex Steel Circles

  • Increased Strength
  • Good Wear Resistance
  • Cost-Effective
  • Excellent Corrosion Resistance

Types of Duplex Steel Circles

  • UNS S32205 Circle Plate
  • UNS S31803 Discs
  • Duplex Ring Type Joint Disc
  • Alloy 2205 Disc Forgings
  • DSS 2205 Gear Blanks
  • Flat Face Disc
  • Raised Face Disc
  • Pancake Forgings
  • Custom Duplex Discs

Duplex Circle Size Chart

Diameter (mm) Thickness (mm) Weight (kg)
50 5 0.8
75 5 1.8
100 10 6.3
150 10 14.1
200 12 25.1
250 15 39.3
300 20 75.4
350 20 102.5
400 25 157.1
450 25 198.2
500 30 294.5
600 30 423.6
700 40 616.6
800 50 1005.3

Hardness Properties

Property Value
Rockwell Hardness 25-30 HRC
Brinell Hardness 250-290 HB
Vickers Hardness 270-310 HV

Surface Finishes Available

  • Mill Finish (2B)
  • Pickled and Passivated
  • Polished Finish
  • Mirror Finish
  • Bright Annealed
  • Hairline Finish
  • Shot / Bead Blasted

Duplex Steel vs Stainless Steel

Property Duplex Steel Stainless Steel
Strength Higher Moderate
Corrosion Resistance Superior Good
Cost Higher Lower
Durability Higher Moderate

Equivalent Standards

  • ASTM A182: UNS S31803 / S32205
  • EN 10088: 1.4462
  • ISO 15510

Chemical Composition

  • Carbon: <= 0.03%
  • Chromium: 22-23%
  • Nickel: 4.5-6.5%
  • Silicon: <= 1%
  • Sulfur: <= 0.02%

Mechanical Properties

  • Tensile Strength: 620 to 880 MPa
  • Yield Strength: 450 MPa
  • Elongation: 25 to 40%
  • Impact Toughness: >100 J
  • Modulus: ~200 GPa

Physical Properties

  • Density: 7.8 to 8.0 g/cm3
  • Melting Point: 1400 to 1450 C
  • Thermal Conductivity: 15 to 20 W/m.K
  • Electrical Resistivity: 0.7 to 0.8 uOhm.m

Export Countries

  • UAE
  • Saudi Arabia
  • Qatar
  • Oman

Price Information

For latest price and instant quote: sales@suntechforge.com

Ready Stock

  • Duplex Steel Discs
  • Gear Blanks
  • Plate Cut Circles
  • Custom Forged Circles

Delivery Time

Export to Shipping Time
Malaysia 7 Days
Indonesia 7 Days
Thailand 7 Days
Singapore 8 Days
Vietnam 14 Days
Finland 45 to 60 Days
Switzerland 45 to 60 Days
Austria 60 Days
Ireland 60 Days