2304 Stainless Steel Bar - Detailed Information
Introduction
2304 stainless steel is a duplex stainless steel grade that combines excellent corrosion resistance with high strength. The unique composition of this material offers a blend of properties that make it ideal for applications where both corrosion resistance and mechanical strength are critical.
Chemical Composition
Chromium (Cr):22.0 - 24.0%
Nickel (Ni):3.5 - 5.5%
Molybdenum (Mo):0.05 - 0.60%
Nitrogen (N):0.05 - 0.20%
Carbon (C):≤ 0.03%
Manganese (Mn):≤ 2.00%
Silicon (Si):≤ 1.00%
Phosphorus (P):≤ 0.035%
Sulfur (S):≤ 0.015%
Key Properties
Corrosion Resistance:2304 stainless steel exhibits excellent resistance to general corrosion, pitting, and crevice corrosion, particularly in chloride environments.
Strength:The duplex microstructure of 2304 stainless steel provides high mechanical strength, making it stronger than conventional austenitic stainless steels.
Weldability:2304 stainless steel has good weldability, and its low carbon content minimizes the risk of intergranular corrosion in welded structures.
Toughness:This grade maintains good toughness, even in low temperatures.
Mechanical Properties
Tensile Strength:600 - 800 MPa
Yield Strength:400 - 600 MPa
Elongation:≥ 25%
Hardness:≤ 280 HB
Applications
2304 stainless steel bars are used in a wide range of applications where high strength and corrosion resistance are required. Common uses include:
Structural components in the oil and gas industry
Chemical processing equipment
Heat exchangers
Pressure vessels
Marine and coastal environments
Pulp and paper industry
Standards and Specifications
ASTM/AISI:UNS S32304
EN:1.4362
DIN:X2CrNiN23-4
JIS:SUS2304
GB:00Cr23Ni4N
Advantages
Excellent resistance to stress corrosion cracking
High mechanical strength
Good weldability without the need for post-weld heat treatment
Lower cost compared to higher-alloyed grades like 2205 and 2507
Conclusion
2304 stainless steel bars offer a unique combination of corrosion resistance, strength, and cost-effectiveness, making them suitable for a variety of industrial applications. Their versatility and durability ensure reliable performance in challenging environments.
