1,Sizeof1.2311alloysteel
Roundbardiameter(mm)length(mm)
20~8003000~9000
Plate
Thickness(mm)width(mm)length(mm)
Max:800max:2200max:9000
Equivalentgrades Gb Din Aisi Jis -
3cr2mo 1.2311 P20 - -
Chemical
Composition
C Si Mn Cr P S Mo
0.35-0.45 0.20-0.40 1.30-1.60 1.80-2.10 0.030 0.035 0.15-0.25 - -
Smelting&shaping Ef/esr+hotforged/hotrolled
Surfacecondition Blacksurface/grinded/machined
Annealedhardness 50-54hrc

Characteristics
Goodtoughnessproperties, Easytomachine, Betterpolishabilitythan1.2312,
Dimensionalstabilityflamehardenable, Goodphotoengravingproperties

Applications
Plasticmoulds, Framesforplasticpressuredies, Hydroformingtools

Heattreatmentannealing Heatto720 •750 °cfor2 •4hfurnacecool.
Stressrelieving Upto560 •600 °c, Holdfor2 •4h;furnaceorstillaircooling.
Tempering Tobecarriedoutafterhardeningintherange580 •650 °cfor25mmofthicknessminimum2h.