Understanding the Chemical Composition and Mechanical Properties of 15Mo3 Steel Grade

[ad_1] 15Mo3 is a low alloy steel with high temperature properties, and is commonly used for pressure vessels and boilers. The chemical composition of 15Mo3 steel grade includes the following elements:

– Carbon (C): 0.12 – 0.20%
– Manganese (Mn): 0.40 – 0.90%
– Phosphorus (P): 0.035% max
– Sulfur (S): 0.035% max
– Silicon (Si): 0.25 – 0.35%
– Chromium (Cr): 0.30 – 0.60%
– Molybdenum (Mo): 0.25 – 0.35%

The mechanical properties of 15Mo3 steel grade are as follows:

– Tensile Strength: 450-600 MPa
– Yield Strength: 270 MPa
– Elongation: 22%
– Impact Toughness: -20°C, 27J

15Mo3 steel grade has good weldability and is commonly used in the fabrication of industrial boilers and pressure vessels. Its high temperature properties make it suitable for use under high temperatures and pressure conditions.
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