Mechanical Properties of Austenitic Stainless Steel S31683 00Cr18Ni14Mo2Cu2
Introduction
Austentic stainless steel S31683 (00Cr18Ni14Mo2Cu2) is a commonly used stainless steel grade with excellent corrosion resistance and a very high tensile strength. It has superior mechanical properties and is highly weldable.
This austenitic stainless steel has a composition of iron, 18% chromium, 14% nickel, 2% molybdenum, 2% copper and a small amount of carbon and nitrogen. The combination of these elements provides it with its outstanding properties such as good resistance to environmental and atmospheric corrosion, good resistance to high temperature oxidation, high strength and excellent formability.
This type of stainless steel is often used in applications such as chemical processing, food processing, pulp and paper industries, marine environments, and general engineering and construction due to its excellent resistance to corrosion and its good strength and formability.
Chemical composition
The chemical composition of the austenitic stainless steel S31683 (00Cr18Ni14Mo2Cu2) is as follows:
• C: 0.03max
• Mn: 2.00max
• P: 0.045max
• S: 0.03max
• Si: 1.00max
• Cr: 18.00-20.00
• Ni: 14.00-16.00
• Mo: 2.00-3.00
• Cu: 2.00-3.00
• N: 0.10max
Physical properties
The physical properties of austenitic stainless steel S31683 are as follows:
• Density: 8.03g/cm3
• Melting Point: 1450-1490℃
• Thermal Expansion Coefficient: 9.25x10-6/K
• Thermal Conductivity: 15.6W/m-K
Mechanical properties
The mechanical properties of austenitic stainless steel S31683 (00Cr18Ni14Mo2Cu2) are as follows:
• Tensile Strength (Yield/Ultimate):
o Annealed: 452/620Mpa
o Hardness (Brinell): 189HBW
• Elongation: 54%
• Modulus of Elasticity: 193GPa
• Fatigue Strength: 515Mpa
• Shear Strength: 211Mpa
Conclusion
Austenitic stainless steel S31683 has excellent mechanical properties and is highly weldable. It has a very high tensile strength and good corrosion resistance, making it suitable for a variety of applications. It is often used in chemical processing, food processing, pulp and paper industries, marine environments, and general engineering and construction due to its excellent corrosion resistance and good strength and formability.
