Min. Order: 10
12Cr1MoV
alloy steel
alloy structural steel 12Cr1MoV
standard ：GB/T 3077-1988
●features and use scope ：
It is used to high pressure ,over-high pressure ,superheater of precritical power station boiler , collecting box and mainly adapt to the catheter smoke .When the temperature arrives 500℃ it still has high heat resistance and oxgey resistance, has long-time for plasticity.The simple manufacturing technique and good welding ,but sensitive normalizing of cooling speed.580℃ long-time use can make spheroidization of pearlite.

●Chemical composition ：
碳 C ：0.08～0.15
硅 Si：0.17～0.37
锰 Mn：0.40～0.70
硫 S ：allow remains content≤0.035
磷 P ：allow remains content≤0.035
铬 Cr：0.90～1.20
镍 Ni：allow remains content≤0.030
铜 Cu：allow remains content≤0.030
钒 V ：0.15～0.30
钼 Mo：0.25～0.30

●mechanical properties
tensile strength σb (MPa)：≥490(50)
yield strength σs (MPa)：≥245(25)
extensibility δ5 (％)：≥22
reduction of area ψ (％)：≥50
ballistic work Akv (J)：≥71
notched bar impact strength αkv (J/cm2)：≥88(9)
rigidity ：≤179HB
specimen size：specimen size of rough 30mm
●heat treatment regime and metallurgical structure：
heat treatment regime ：quenching 970℃,air cooling;backfire 750℃,air cooling.
metallurgical structure：： bainite+ferrite.

●deliver position ：heat treatment（normalizing、annealing or high-temperature backfire）or no heat treatment, this should be shown on the contract.

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