AN INVESTIGATION OF THERMAL STRENGTH PROPERTIES OF 15MnNbRE MICRO-ALLOYED STEEL

The investigation involves creep rupture strength of the 15MnNbRE steel VS heat-treatment condition thereof, the said steel's anti-oxidation behaviour and staying structural stability under high temperature, It is concluded that the said micro-alloyed steel's high-temperature long-time strength is approximately 20% higher than that of the 20G low-carbon steel for boiler service.