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1.2311


JIS : SNCM

DAIDO : PDS 3

ASSAB : 618

1.2311

JISAISIWNrDIN
-P201.23111.2311


CHEMICAL COMPOSITION(Typical Analysis %)

CMnCrMo
0.401.501.900.20

STEEL PROPERTIES

Cold or hot work tool steel, It is supplied hardenened and tempered to 880-1080N/mm. Good machinability, better polishability as W. Nr. 1.2312, suitable for texturing



PHYSICAL PROPERTIES

Thermal coductivity W/(m.K)  20C/33
Density g/cm3  20C/7.83


Coefficient of linear thermal expansion

10-1 C-120-100C20-200C20-300C20-400C20-500C20-600C20-700C
11.713.113.514.014.414.614.7


APPLICATIONS

For large injection moulds, forge drop hammer dies, intermediate boxes



HEAT TREATMENT

SOFT ANNEALING(C)COOLINGHARDNESS (HB)
710-740FURNACEMAX. 230

HARDENING FROM(C)INHARDNESS AFTER QUENCHING (HRC)
830-880OIL, AIR, THERMAL BATH 180-220⚬C51 HRC (1730 N/mm2

TEMPERING (C)200300400500600
HARDNESS (HRC)5048464236
(N/mm2)16801570148013301140

*Further hardening is not recommended


NITROCARBURISING AT 570⚬C X 2HRS (51 %NH3, 43%N2, 1% Propane)

HRC AT COMPOUND LAYERTHICKNESS OF COMPOUND LAYERTHICKNESS OF CASE DEPTHCORE HARDNESS (HRC)
6310-12µm250µm33

TEMPERING DIAGRAM

TIME - TEMPERATURE -  TRANSFORMATION DIAGRAM

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