DIN 17155 19Mn6 high pressure boiler steel sheet is the German standard number, equivalent to GB Q345R and European standard P355GH, 19Mn6 high pressure boiler steel sheet is mainly used for the production of power station boiler drum roll, according to DIN17155 standards of production, the physical quality meets and exceeds the advanced foreign Level.
DIN 17155 19Mn6 boiler steel sheet production process:
smelting furnace refining --VD --LF vacuum - molded - steel ingot heating - rolling - normalizing - tempering - testing - steel cutting inspection - storage.
DIN 17155 19Mn6 Chemical composition(%)
C≤0.2 Si≤0.5 Mn≤0.7 P≤0.025 S≤0.015 N≤0.009 Al≥0.02 Ti≤0.03
19Mn6high pressure boiler steel sheet Mechanical property
Yield strength ReH(N/mm2) transv.min:355
Tensile strength Rm(N/mm2)transv:510-620
Fracture Elongation (%)transv.min:
Thickness :t<3mm Total elongation Al≥19%
t≥3mm Total elongation Al≥24%
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