Cr12mov mold steel

Cr12mov mold steel

national standard:cr12mov

Logo:skd11

German Standard:1.2601

DIN：x165crmov12

Japanese Standard:skd11

Korean Standard:STD11

Italian standards:x165crmow12

Swedish standards:2310

Spanish standards:x160crmov12

American standard:x12m

Chemical composition:

carbonC：1.45～1.70

siliconSi：≤0.40

manganeseMn：≤0.40

sulfurS：≤0.030

phosphorusP：≤0.030

chromiumCr：11.00～12.50

nickelNi: Allow residual content≤0.25

copperCu: Allow residual content≤0.30

vanadiumV：0.15～0.30

molybdenumMo：0.40～0.60

Electric furnace vacuum refining production, forging and cutting, uniform eutectic carbides, high hardenability, high wear resistance, high toughness, and small volume deformation during quenching; Therefore, its market usage is very large.

①reduceCrTheMoTheVThe content of elements directly reduces costs but also seriously affects performance, such asCr8TheCr12act asCr12MoV；

②Changing its production method, replacing electric furnace refining with intermediate frequency furnace, resulting in excessive impurities in the composition, using continuous casting method instead of spheroidizing annealing, reducing rolling ratio and other methods to reduce costs,zuiThe materials used by the end customer do not meet the expected results, reducing the lifespan of the mold, and in severe cases, directly leading to cracking and scrapping.

Mechanical properties:

hardness : Annealing, two hundred and fifty-five～207HB（14-25HRC）,Indentation diameter3.8～4.2mm;quenching,≥60HRC

Cr12MoVpurpose

Cr12MoVdie steelHardenability, hardness after quenching and tempering, strength, toughness ratioCR12High, with a diameter of300~400mmThe following workpieces can be quenched through with minimal deformation, butHigh temperature plasticityPoor.Cr12MoVCommonly used for manufacturing composite molds and tools with large cross-sections, complex shapes, and heavy workloads. Such as punching dies, trimming dies, rolling dies, steel plates, etc.

Heat treatment specifications

Heat treatment specifications:1.quenching, nine hundred and fifty～1000℃oil cooling;2.quenching1020℃,200℃tempering2h.

Metallographic structure: Fine grained pearlite+Carbides.

Delivery status: Steel is delivered in annealed state.

Cr12mov mold steel