How Does 12CrMo10 Steel Grade Compare to Other Alloy Steels?

12CrMo10 is a low-alloy steel grade that is primarily used in applications where high temperature resistance and good creep strength are required. When compared to other alloy steels, such as 4130, 4140, or 4340, 12CrMo10 has a different chemical composition and mechanical properties.

Chemical Composition:
12CrMo10 steel grade contains chromium, molybdenum, and carbon as its main alloying elements. It typically has a chemical composition of:
– Carbon (C): 0.07-0.15%
– Silicon (Si): 0.17-0.37%
– Manganese (Mn): 0.40-0.70%
– Phosphorus (P): 0.025% max
– Sulfur (S): 0.025% max
– Chromium (Cr): 0.90-1.20%
– Molybdenum (Mo): 0.15-0.25%
– Nickel (Ni): 0.15-0.30%

Mechanical Properties:
Compared to other alloy steels, 12CrMo10 offers good mechanical properties and high-temperature strength. Some of its mechanical properties include:
– Tensile strength: 600-800 MPa
– Yield strength: 450 MPa min
– Elongation: 14% min
– Hardness: 170-210 HB

Comparison to Other Alloy Steels:
When compared to other alloy steels, 12CrMo10 has a lower chromium and molybdenum content. For example, 4140 steel contains higher amounts of chromium and molybdenum. This difference in chemical composition affects the mechanical properties and performance of the steel. 12CrMo10 offers good high-temperature strength and resistance to creep deformation, making it suitable for applications in power plants, boilers, and pressure vessels.

However, it is important to note that the specific comparison of 12CrMo10 to other alloy steels may vary depending on the specific grade and heat treatment of those steels. It is always advisable to consult detailed specifications and data sheets for accurate comparisons.
12CrMo10 Steel grade
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