SUS310S stainless steel (0Cr25Ni20/0Cr25Ni20Si2),is heat-resistant stainless steel, United States trademark is 310S, also known as 2520, is duplex stainless steel,used in manufacturing high temperature resistance furnace tube.

SUS310S chemical composition (%): Ni-NI: 19.00-22.00 Cr CR: 24.00-26.00 Si <=2.00 SI <=1.50 Mn Manganese carbon sulfur <=0.030 <=0.08 s p c p <=0.035 density: 8 g/cubic centimeters.

mechanical properties: yield strength ≥ 205, ≥ 520 tensile strength, elongation rate ≥ 40, hardness testing: HBS ≤ 187,HRB ≤ 90,HV ≤ 200