Lord Fin Tube-Urea resistant stainless steel 00cr25ni22mo2n
Urea resistant stainless steel 00cr25ni22mo2n.
Chemical composition of 00cr25ni22mo2n steel,%
C Cr Ni Mo N Si Mn S P
≤0.02 24-26 21-23 2-3 0.10-0.14 ≤0.4 ≤1.5 ≤0.015 ≤0.020
In chemical composition, the content of C, Cr, Ni, Mo and n should be controlled to obtain pure austenite with very low ferrite content
The content of Si, s, P and other impurities in the steel should be controlled to obtain excellent corrosion resistance and process performance.
Because the steel contains nitrogen, its strength is higher than 00Cr17Ni14Mo2. The service temperature of this steel in urea stripper is about
The temperature is 200 ℃.
When the temperature is 20 ℃, б B ≥ 580mpa, б 0.2 ≥ 270MPa, δ 5 ≥ 30%;
When the temperature is 200 ℃, б 0.2 ≥ 200MPa.
The most important corrosion resistance of 00cr25ni22mo2n steel is much higher than that of 00Cr17Ni14Mo2 (316L) steel
High passivation ability, even when in harsh reductive conditions (when ammonium carbamate solution needs to maintain the steel in passivation)
When the oxygen content is very low, the passive film still exists, so that the steel has good corrosion resistance. Test finger
The results show that 00Cr17Ni14Mo2 is activated when the oxygen content in ammonium carbamate solution is only 3ppm at 200 ℃
The corrosion rate of 00cr25ni22mo2n steel is as high as 40mm / A,
Not much has changed.
The corrosion resistance of 00cr25ni22mo2n in nitric acid, acetic acid and sulfuric acid is better than that of 00Cr18Ni10 and 00Cr18Ni10
Urea grade 316L, 00cr25ni22mo2n
Nitric acid resistance: 00Cr14Ni14Si4 (C4), 00cr17ni17si
Dual phase steel: 00Cr18Ni5Mo3Si2, 00Cr22Ni5Mo3N (SAF2205)
Super dual phase steel 00cr26ni7mo3n
Dual phase steels: 0cr21ni5ti, 00Cr18Ni5Mo3Si2 (3re60), 00Cr22Ni5Mo3N
Z5 00Cr18Ni10Cu(304L-Cu)、 00Cr18Ni10N(304L-N)、
High temperature mechanical properties of Cr Ni austenitic stainless steel 00cr25ni22mo2n (2RE69)
The high temperature mechanical properties of 00cr25ni22mo2n (2RE69)