A387 grade 5 class 2 materials are high quality chromium-molybdenum alloy steel. They are ideal for use in pressure vessels and industrial boilers due to the excellent heat resistant and anti corrosion properties. A387 grade 5 class 2 materials are used in a number of applications and industries.

Chemical composition of A387 grade 5 class 2 materials:

Grade	C	Mn	P	S	Si	Cr	Mo	Others
A387 grade 5 class 2	≤0.15	0.25-0.66	0.025	0.025	≤0.55	3.90-6.10	0.40-0.70	-

Mechanical property of A387 grade 5 class 2 materials:

Grade	Tensile Strength	Yield Strength	Elongation in 2 inches
Grade	(Mpa) min.	(MPa) min.	(%) max.
A387 grade 5 class 2	515-690	310	18

The two key alloying elements of A387 grade 5 class 2 materials are Molybdenum (Mo) and Chromium (Cr). A387 grade 5 class 2 materials are typically applied in the temperature range from 316℃ to 593℃.

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