Material comparison
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The imported material X2CrNiMo18143 (mod) is equivalent to which domestic material?
Equivalent to the domestic 00Cr19Ni13Mo3, mod should be referred to as the improved version. Is it a urea plant? If so, it is a 316L improved version, which is a urea-grade stainless steel.
Could you provide the physical and chemical parameters?
316Lmod UNS; the corresponding domestic grade is 00Cr18Ni14Mo3. For the Swedish grade 724L, the chemical composition is as follows: % Ni … 12.50 – 15.00, Cr … 17.0 – 19.0, Mo … 2.50 – 3.00, Si … 1.0 max, Mn … 2.00 max, N … 0.11 max, C … 0.03 max, P … 0.045 max, S … 0.03 max, Fe … the remainder. Mechanical properties: Tensile strength 558 Mpa, Yield strength 290 Mpa, Elongation 50%. Product forms: Electroslag ingots, bars, sheets, wires, forgings. 317 UNS S31700; the corresponding domestic grade is 0Cr19Ni13Mo3. Chemical composition: % Ni … 11.00 – 15.00, Cr … 18.0 – 20.0, Mo … 3.00 – 4.00, Si … 1.0 max, Mn … 2.00 max, C … 0.08 max, P … 0.045 max, S … 0.03 max, Fe … the remainder. Mechanical properties: Tensile strength 621 Mpa, Yield strength 276 Mpa, Elongation 45%. Product forms: Electroslag ingots, bars, sheets, wires, forgings
I am studying materials related to urea, and I would like to understand the differences between 316L and urea-grade 316L; it’s very useful.