2304 Stainless Steel Supply

Duplex 2304 stainless steel is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel whose structure is a balance of ferritic and austenitic. It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. It is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.

Chemical Analysis

Typical Values (Weight %)

CarbonChromiumNickelMolybdenumNitrogenOthers
0.0202340.20.1S=0.001
PREN = [Cr%] = 3.3 [Mo%] = 16 [N%] ≥ 24

2304 Stainless Steel Properties

Corrosion Resistance: 2304 stainless steel has excellent corrosion resistance in a wide range of environments. It can withstand exposure to water, mild acids, and other corrosive substances without corroding or rusting.

Strength: 2304 stainless steel has high strength, making it ideal for applications that require high mechanical strength. It has a minimum tensile strength of 620 MPa and a minimum yield strength of 400 MPa.

Ductility: 2304 stainless steel has good ductility, which means that it can be easily formed and shaped without cracking or breaking. This property makes it ideal for applications that require complex shapes or designs.

Weldability: 2304 stainless steel is easily weldable, making it an excellent choice for applications that require welding. It can be welded using common welding techniques, such as TIG, MIG, and resistance welding.

Magnetic Properties: 2304 stainless steel is magnetic, which makes it suitable for applications that require magnetic properties.

Heat Resistance: 2304 stainless steel has good heat resistance and can withstand moderately high temperatures without losing its strength or corrosion resistance. It can withstand temperatures up to 300°C (572°F) without undergoing any significant change in its properties.

Mechanical Properties

Tensile Properties (Minimum Values)

°CRp 0.2
MPa
Rp 1.0
MPa
Rp 1.0
MPa
°FYS 0.2%
Offset KSI
YS 0.1%
Offset KSI
UTS
KSI
Elongation
%
204004406006858648725
10033036557021248538325
20028031053039241457720
30023026049057233387120

Values obtained for hot rolled plates (th ≤ 2"). Alloy 2304 must not be used for a long time at temperatures higher than 300°C (572°F), where precipitation hardening phenomenon occurs.

Toughness Values (KCV Minimum Values)

Temp.-50°C+20°C-60°F+70°F
Single75 J/cm_90 J/cm_54 ft. lbs65 ft. lbs
Average (5)90 J/cm_150 J/cm65 ft. lbs87 ft. lbs

Hardness (Typical Values)

Average (5)HV10 180-230HB : 180-230HRC _ 20

Physical Properties

Density : 7,800 kg/m3 - 0.28 lb/in3

Interval
Temper
°C
Thermal
expansion
ax10M-bK-1
°CResistivity

(μ_ cm)
Thermal
conductivity
(W.m-1.K-1)
Specific
heat
(J.kg-1.K-1
Young
modulus
E
(GPa)
Shear
modulus
G
(GPa)
20-1001320801745020075
20-10013100921850019073
20-20013.52001001953018070
20-300143001052056017067

2304 Stainless Steel Applications

2304 stainless steel is a duplex stainless steel alloy with a combination of austenitic and ferritic phases. It offers a good balance of corrosion resistance, high strength, and cost-effectiveness. Here are some common applications of 2304 stainless steel:

  1. Structural Components: Due to its high strength and corrosion resistance, 2304 stainless steel is used in structural components for buildings, bridges, and other construction projects.
  2. Architectural Applications: Components in architectural structures, such as handrails, panels, and facades, may use 2304 stainless steel for its aesthetic appeal and corrosion resistance.
  3. Chemical Processing Equipment: 2304 stainless steel is employed in the chemical processing industry for equipment such as tanks, piping systems, and pressure vessels where resistance to corrosive chemicals is essential.
  4. Oil and Gas Industry: Components used in the oil and gas industry, including pipelines, valves, and offshore platforms, may use 2304 stainless steel for its corrosion resistance in harsh environments.
  5. Marine Applications: Due to its resistance to corrosion in marine environments, 2304 stainless steel is used in marine applications, including boat fittings, marine structures, and offshore equipment.
  6. Food Processing Equipment: 2304 stainless steel is suitable for certain components of food processing equipment, such as conveyors, tanks, and piping, where corrosion resistance and durability are required.
  7. Heat Exchangers: Components in heat exchangers, including tubes and plates, may be made from 2304 stainless steel due to its corrosion resistance in various environments.
  8. Water Treatment: 2304 stainless steel is used in water treatment plants for components such as pipes, tanks, and filtration systems due to its corrosion resistance and durability.
  9. Automotive Applications: Certain automotive components requiring corrosion resistance, such as exhaust systems and structural elements, may use 2304 stainless steel.
  10. Mining Equipment: Components in mining equipment, including screens, crushers, and conveyor systems, may use 2304 stainless steel for its strength and corrosion resistance in abrasive environments.

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