12Cr1MoVCarbon structural steelWith 12CrMoVCompared to carbon structural steel, this steel boasts superior anti-corrosion and heat resistance properties. The creep strength limit and endurance strength of this steel are very close, and it exhibits high plasticity under endurance stretching conditions. The steel has good processability and weldability, but it requires preheating to 300 degrees Celsius before welding.℃Post-weld stress relief treatment is required.

     12Cr1MoVCarbon Steel AlloyThis steel is widely used in high-pressure, ultra-high-pressure, subcritical power plant boilers, superheaters, headers, and main steam ducts. This steel is suitable for temperatures up to 580℃High thermal strength and oxidation resistance remain, with good persistent plasticity. The production process is relatively simple, with good welding properties, but is sensitive to normalizing cooling rates. 580℃Long-term use can lead to temper brittleness due to the segregation of impurities like phosphorus at grain boundaries; it can also result in spheroidization of pearlite over time.

     12Cr1MoVCarbon structural steel is primarily used after normalizing and high-temperature tempering, for manufacturing high-pressure equipment where the working temperature does not exceed 570～585℃Overheated steel pipes, conduits, serpentine pipes, and other corresponding forgings.

Product Name:

12Cr1MoV Alloy Structural Steel

 Synonymous Name:

12Cr1MoV、12Cr1MoVA

Standard of Execution:

GB/T 3077-1999

 Main Ingredients (%):

Carbon (C) 0.08～0.15

Silicon (Si) 0.17～0.37

Mn 0.40～0.70

Chromium (Cr) 0.90～1.20

Molybdenum (Mo) 0.25～0.35

Vanadium (V) 0.15～0.30

Phosphorus (P) ≤ 0.035

S( Sulphur) ≤ 0.035

Copper (Cu) ≤ 0.30

Nickel (Ni) ≤ 0.30

Physical/Mechanical Properties:

Tensile strength(σb)：≥490MPa

Yield Strength(δ)：≥245MPa

Tensile elongation at break(A)：≥25%

Section Reduction Ratio (Z)）：≥50%

Hardness: Annealed or High-Temperature Quenched≤179HB

 Heat Treatment Process Specifications:

Quenching 970°C, Air-cooled

Austenitize 750°C, Air-cooled

 Through this heat treatment process, the microstructure of 12Cr1MoV can be optimized, enhancing its mechanical properties and reliability.