1.2738HH | HASCO Portal
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1.2738 HH

Material no.:

Abbreviated DIN name:

Chemical analysis (%):
1.2738 HH

Special alloy

 
C
Mn
Cr
Ni
Mo
0,25
1,4
1,3
1,0
0,5
HASCO colour code:


Hardness when supplied:
blue / green / black


310-355 HB (~1050-1200 N/mm²)

Characteristics

Material properties:

Hardened and tempered steel for plastics processing moulds,
with a homogeneous strength even for large dimensions.


Uses:

Big cavity plates with deep cavities and highly stressed core

Physical properties

Thermal expansion coefficient (10-6·m) / (m·K)

 
100 200 300 400 500 600
10,9 12,6 13,0 13,5 13,8 14,2





Thermal conductivity W / (m·K)

 
20 350 700
38 40,1 24,2


Remarks

Polishing: Is possible.
Graining: Is possible.
Nitriding: Is possible.
Hardening: Not usual, is used in its supplied condition.
Soft annealing: Not usual.
Stress-relief
annealing:
To eliminate residual stress after coarse machining at
at 710-740°C, 4 h with slow furnace cooling to 600°C.



Tempering chart
1.2738HH_WDB_EN.png

Download the PDF here