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Duplex Steel Sheet 2205 Stainless Steel Plate

  • Duplex
  • 7219

Quick Details
Standard: AISI, ASTM, BS, DIN, GB, JIS
Grade: S32304/2304
Thickness: 0.5-12mm
Place of Origin: China (Mainland)
Model Number: stainless steel sheet
Type: Steel Plate
Technique: cold rolled/hot rolled
Application: Bridges, Storage tanks, Water heaters
Width: 1000-1500mm or as require
Length: 2000-6000mm or as require
Name: Duplex Steel S32304/2304 stainless steel sheet/plate
Free sample: avaliable
Delivery: short
Best service: after sales service
Stock: yes
Note: we can also do other materials

Packaging & Delivery
Packaging Details:Delivery Detail:

Standard export seaworthy package or as customer required for Duplex Steel S32304/2304 stainless steel sheet/plate

Duplex Steel S32304/2304 stainless steel sheet/plate
Product Description

Stainless steel grade Duplex 2304 is a duplex stainless steel type with a structure that is a balance of ferritic and austenitic. It has high strength and toughness, resistance to stress corrosion cracking, high thermal conductivity, low thermal expansion, and easy fabrication. It is recommended that this steel is not used in areas where the steel would be exposes to temperatures over 1058°C (570°F) for prolonged periods.

Chemical CompositionElementContent (%)

Iron, Fe72.679
Chromium, Cr23
Nickel, Ni4
Molybdenum, Mo0.20
Nitrogen, N0.1
Carbon, C0.02
Sulfur, S0.001

Mechanical PropertiesPropertiesMetricImperial

Tensile strength≥ 600 MPa≥ 87000 psi
Yield strength (@strain 0.200 %)≥ 400 MPa≥ 58000 psi
Modulus of elasticity200 GPa29000 ksi
Shear modulus (@temperature 20°C/ 68°F)75.0 GPa10900 ksi
Poisson's ratio0.3330.333
Elongation at break≥ 25 %≥ 25 %
Hardness, Rockwell C≤ 20.0≤ 20.0
Hardness, Brinell180 - 230180 - 230

Other Designations
Equivalent materials to stainless steel grade Duplex 2304 are given below:
DIN 1.4362

Manufacturing Process
Machining of stainless steel grade Duplex 2304 is performed at low speeds, and constant feeds help to reduce its tendency to work harden. This material is tougher than grade 304 and 316 stainless steels due to its long stringy chip. Chip breakers are recommended. Unlike the 300 series stainless steel, Duplex 2304 steel requires more pressure while performing forming due to its higher yield strength. Its low ductility characteristic tends to make it difficult to perform forming operations.

Welding can be performed using most of the traditional methods such as gas-tungsten arc welding (GTAW), submerged arc welding (SAW), and gas-metal arc welding (GMAW). The filler metal should be a balanced of ferrite/ austenite type like 2205 or 2304.

Hot working can be done after heating the material to 954-1093°C (1750-2000°F), which is followed rapid cooling. Annealing after working is recommended. For annealing, the material is heated to 930-1050°C (1710-1920°F) and then rapidly quenched.

Stainless steel grade Duplex 2304 is used by various industries including pulp and paper, coal handling, potash, food and beverage, and waste water.

The specific applications are as follows:
Storage tanks
Water heaters
Heat exchangers
Pressure vessels
Feedwater tubes
Heat exchangers
Flue-gas cleaning
Seawater systems
Desalination plants
Parts for structural design
Rotors, impellers and shafts
Firewalls and blast walls on offshore platforms
Cargo tanks and pipe systems in chemical tankers
Piping and instrumentation tubing for general service

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