0Cr18Ni10Ti stainless steel
Standard
GB / T 1220-1992
Introduction
0Cr18Ni10Ti (GB / T 1220-1992) in the 304 elements of Ti added steel to prevent intergranular corrosion; is suitable for the 430 ℃ ~ 900 ℃ temperature use. Used in aircraft, the exhaust pipe, boiler drum and so on.
1Cr18Ni9Ti has been gradually replaced by 0Cr18Ni10Ti. Two materials of different chemical composition, so the performance is also different: 1Cr18Ni9Ti higher carbon content, 0Cr18Ni10Ti resistance to intergranular corrosion than 1Cr18Ni9Ti good, because it not only titanium, and carbon content is also low, double insurance coverage Chrome . But the two high-temperature oxidation, on the contrary.
321: the corresponding grades 0Cr18Ni10Ti China
Chemical composition
Carbon C: ≤ 0.08
Si Si: ≤ 1.00
Manganese Mn: ≤ 2.00
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: 17.00 ~ 19.00
Ni-Ni: 9.00 ~ 12.00
Ti Ti: = 5x (c% -0.02) ~ 0.8
Mechanical properties
Tensile strength σb (MPa): ≥ 520
Conditions yield strength σ0.2 (MPa): ≥ 205
Elongation δ5 (%): ≥ 40
Reduction of area ψ (%): ≥ 50
Hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV
Heat treatment
Heat treatment specifications
1) solid solution 920 ~ 1150 ℃ fast-cooling;
2) According to the demand side, demand may be stabilizing treatment, heat treatment temperature is 850 ~ 930 ℃, but it must be stated in the contract.
Microstructure
Organizing for the austenitic type.
Standard
GB / T 1220-1992
Introduction
0Cr18Ni10Ti (GB / T 1220-1992) in the 304 elements of Ti added steel to prevent intergranular corrosion; is suitable for the 430 ℃ ~ 900 ℃ temperature use. Used in aircraft, the exhaust pipe, boiler drum and so on.
1Cr18Ni9Ti has been gradually replaced by 0Cr18Ni10Ti. Two materials of different chemical composition, so the performance is also different: 1Cr18Ni9Ti higher carbon content, 0Cr18Ni10Ti resistance to intergranular corrosion than 1Cr18Ni9Ti good, because it not only titanium, and carbon content is also low, double insurance coverage Chrome . But the two high-temperature oxidation, on the contrary.
321: the corresponding grades 0Cr18Ni10Ti China
Chemical composition
Carbon C: ≤ 0.08
Si Si: ≤ 1.00
Manganese Mn: ≤ 2.00
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: 17.00 ~ 19.00
Ni-Ni: 9.00 ~ 12.00
Ti Ti: = 5x (c% -0.02) ~ 0.8
Mechanical properties
Tensile strength σb (MPa): ≥ 520
Conditions yield strength σ0.2 (MPa): ≥ 205
Elongation δ5 (%): ≥ 40
Reduction of area ψ (%): ≥ 50
Hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV
Heat treatment
Heat treatment specifications
1) solid solution 920 ~ 1150 ℃ fast-cooling;
2) According to the demand side, demand may be stabilizing treatment, heat treatment temperature is 850 ~ 930 ℃, but it must be stated in the contract.
Microstructure
Organizing for the austenitic type.
