Stainless steel 1Cr 18Ni9Ti is a common stainless steel (SUS32 1), and its microstructure is austenite. In 1Cr 18Ni9Ti, 1, 18 and 9 represent the contents of carbon (one thousandth), chromium (%) and nickel (%) respectively. It is a stainless steel brand in China. Used for manufacturing acid-resistant containers and equipment linings, magnetic instruments and medical instruments, with good intergranular corrosion resistance.
C: ≤ 0. 12%。
Silicon Si: ≤ 1.00%.
Manganese Mn: ≤ 2.00%.
Sulfur s: ≤ 0.030%.
Phosphorus P: ≤ 0.035%.
Chromium Cr: 17.00 ~ 19.00%.
Nickel Ni: 8.00 ~ 1 1.00%.
Ti: 5 * (c%-0.02) ~ 0.80%。
Heat treatment specification and metallographic structure;
Heat treatment specification: 1) solid solution quenching at 920 ~ 1 150℃; 2) It can be stabilized according to the requirements of the buyer, and the heat treatment temperature is 850 ~ 930℃, but it must be specified in the contract.
Metallographic structure: the structure is austenite.
Delivery status: generally, the goods are delivered in heat treatment status, and the type of heat treatment is indicated in the contract; If there is no stipulation, the goods shall be delivered without heat treatment.
mechanical properties
Tensile strength σb(MN/m2) ≥550.
Yield strength σs(MN/m2) ≥200
Elongation δ 5 (%) > = 40
China's 1Cr 18Ni9Ti is equivalent to American AISI32 1, 0Cr 18Ni9 is equivalent to AISI304, 1Cr 18Ni9 is equivalent to 302, 0cr/kloc-0.
1Cr 18Ni9Ti= China Taiwan Province Province 32 1= international standard X7CrNiTi 18- 10= Russia12x18h10.
If it is used at 700℃, 1Cr 18Ni9Ti should be competent, because it is both an austenitic stainless steel and a widely used austenitic heat-resistant steel, but it is best not to exceed 750℃, and its heat treatment is solution treatment, that is, heating to 1000℃, holding for a certain time, then water quenching, and then.