15Mo3 pearlitic heat-resistant steel

1. 15Mo3 steel belongs to the pearlitic heat-resistant steel, which implements the DIN17155 standard. It is a steel grade that can show characteristics even under long-term load at higher temperatures. It is used for the heating surface of low and medium pressure boilers (the working pressure is generally not more than 5.88Mpa, and the working temperature is below 450℃).

2. Chemical composition of 15Mo3 heat-resistant steel:

Grade	C	Si	Mn	P	S	Mo
15Mo3	0.12-0.20	0.10-0.35	0.40-0.80	0.030	0.030	0.25-0.35

3. Mechanical properties of 15Mo3 pearlitic heat-resistant steel:

Grade	Yield strength	Elongation	Shrinkage rate	Impact toughness value	Tensile strength
15Mo3	270Mpa	22	38	34	450-600Mpa

4. Uses of 15Mo3 heat-resistant steel: Used for heating surface tubes, economizers, superheaters, reheaters, etc. of high-pressure boilers (the working pressure is generally above 9.8Mpa, and the working temperature is between 450℃ and 650℃).

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