Product: 1.2343,H11,SKD6

 

Keywords: tool steel,die steel,specialty steel,steel bar,hotwork,coldwork,forged bar,alloy tool steel,flat bar, round bar,

 

 

Typical Analysis:

C  : 0.33-0.43

Si : 0.80-1.25

Mn: 0.20-0.60

P : Max 0.030    

S : Max 0.030 

Cr: 4.75-5.50

Mo: 1.10-1.60

V : 0.30-0.60

 

Similar Grades: DIN 1.2343,GB/T 4Cr5MoSiV

 

Advantages:

Resists cracking when water cooled in service.

Superior properties at elevated temperatures.

Excellent impact strength.

 

Availability:

Very limited.Usually available in block and plate.

 

Application:

H11 is an excellent choice for a wide range of hot work and cold work applications. It has excellent nondeforming properties,and is used for hot shell punches,mandrels,and applications where resistance to splitting or cracking is desirable.

 

Machinability:

H11 has a machinability rating of 80 compared to a 1% carbon tool steel which is rated at 100.

 

Annealing:

Heat slowly to 1550°F for one hour per inch of thickness. Cool 75°per hour to 1000°F and air cool. For surface protection an atmosphere furnace or stainless foil wrap must be used. The annealed hardness of H11 should be 217 Brinell maximum.