Introduction
S31760 ferritic/austenitic stainless steel is a Grade of alloy steel developed by Sumitomo Metals Company for use in industrial and commercial applications. The alloy is designated ASTM A 276 Grade S31760. It is an AISI standard steel grade and is chromium-nickel-molybdenum-titanium alloy. The chemistry of S31760 is as follows:
Chemical Composition
The chemical composition of S31760 alloy is outlined in the following table.
Element Content (%)
C 0.04 max
Mn 2.00 max
P 0.030 max
S 0.020 max
Si 1.00 max
Cr 17.5 – 18.5
Ni 12.00 – 13.00
Mo 3.00 – 3.50
Ti 0.80 – 1.20
Fe Balance
Physical Properties
The following table summarizes the physical properties of S31760 alloy.
Density 8.00 g/cm³
Melting Point 1410 – 1450 °C
Modulus of Elasticity 193 GPa
Thermal expansion 17.0 µm/m-°C
Coefficient of Thermal Conductivity 17.3 W/m-K
Compressive Strength 690 MPa
Tensile Strength 590 MPa
Elongation at Break 19.0%
Hardness 189 HB
Mechanical Properties
The mechanical properties of S31760 alloy are outlined in the following table.
Tensile Strength 590 MPa
Yield Strength 290 MPa
Elongation at Break 19.0 %
Modulus of Elasticity 193 GPa
Shear Modulus 80 GPa
Bulk Modulus 145.0 GPa
Poissons Ratio 0.30
Thermal Properties
The thermal properties of S31760 alloy are outlined in the following table.
Thermal Conductivity 17.3 W/m-K
Melting Point 1410 – 1450 °C
Linear Thermal Expansion 17.0 µm/m-°C
Specific Heat Capacity 500 J/kg-K
Corrosion Properties
S31760 stainless steel is a chromium-nickel-molybdenum-titanium alloy and is moderately resistant to corrosion in many organic and inorganic environments. The alloy exhibits increased resistance to contamination and intergranular corrosion. Since it is Highly Magnetic to Ferromagnetic it can be used in applications requiring magnetism such as electrical and electronics.
Applications
S31760 stainless steel is widely used in various industries such as chemical processing, oil and gas, marine, food and beverage, pharmaceutical, and other industrial applications. The alloy is resistant to corrosion and its strength and magnetic properties make it suitable for many industrial applications. The alloy can be used in chemical processing, oil and gas storage tanks, and fabrications for many industries.
Conclusion
S31760 stainless steel is a Grade of alloy steel developed by Sumitomo Metals Company for use in industrial and commercial applications. The alloy exhibits increased resistance to contamination and intergranular corrosion. It is Highly Magnetic to Ferromagnetic making it ideal for applications requiring magnetism such as electrical and electronics. The alloy is resistant to corrosion and its strength and magnetic properties make it suitable for many industrial applications. The alloy is widely used in various industries such as chemical processing, oil and gas, marine, food and beverage, pharmaceutical, and other industrial applications.
