What is the material equivalent of 12cr1mov
Jan 06, 2026
12Cr1MoV pipeline steel is a high-quality alloy structural steel widely used in high-temperature and high-pressure environments. Due to its excellent heat resistance, good comprehensive mechanical strength and stable chemical composition, it is highly favored in the manufacture of thermal power, petrochemical equipment and boilers. It is one of the representatives of heat-resistant steels containing chromium, molybdenum and vanadium.
12Cr1MoV is a grade of alloy structural steel with a carbon content of 0.12%, but it contains added chromium, molybdenum, and vanadium. 12Cr1MoV corresponds to ASME material P11.
Below, we compare P11 and 12Cr1MoV in several aspects.
Both P11 and 12Cr1MoV are steel grades, belonging to the category of steels used in high-pressure environments.
1. Different Standards
P11 follows the American ASME standard, while 12Cr1MoV follows the Chinese national standard GB/T5310-2018.
2. Comparison of Chemical Composition
P11 Chemical Composition: C 0.05-0.15 Si 0.5-1.00 Mn 0.3-0.6 P≤0.025 S≤0.025 Cr 1.0-1.0 Mo 1.44-0.65
12CR1MOVG Chemical Composition
C: 0.08-0.15 Si: 0.17-0.37 Mn: 0.40-0.70 Cr: 0.90-1.20 V: 0.15-0.30 Mo: 0.25-0.35
3. Comparison of Mechanical Properties
P11 Mechanical Properties
P11 Mechanical Properties: Tensile Strength: ≥482 MPa; Yield Strength: ≥347 MPa Elongation after fracture: ≥22%
12Cr1MoVG Mechanical Properties
12Cr1MoVG Mechanical Properties: Tensile Strength: ≥490MPa; Yield Strength: ≥245MPa; Elongation after fracture: ≥22%; Reduction of area: ≥50%; Impact Energy: ≥71J
P11, also known as SA-335M P11, is a ferritic alloy steel nominal pipe for high-temperature applications. According to national standards, 12Cr1MoVG alloy steel pipe is suitable for use in superheater tubes, headers, and steam pipelines in high-pressure boilers with a wall temperature ≤580℃.
12Cr1MoVG Alloy steel pipe for boiler in stock
