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1.2738 TSHH steel for plastic moulds

DESIGNATION:

DIN:Special alloy
AFNOR:
UNI:
AISI:

INDICATORY ANALYSIS:

C0.26
Mn1.45
Cr1.25
Mo0.50
Ni1.05
V0.12

STRENGH:

tempered to ≈ 1200 N/mm²
(≈ 38 HRC)

THERMAL CONDUCTIVITY AT 250°C:

41.3 W/m K


CHARACTER:

Modified, pre-toughened steel for plastic moulds, which is characterised by good polishability and grainability; high thermal conductivity and wear resistance

APPLICATION:

Cavity plates without dimension restrictions, with deep cavities and high core loads


TREATMENT BY:

Polishing, etching, EDM, nitriding:
highly suitable

Hard chrome plating:
is possible


HEAT TREATMENT:

 

Already pre-toughened; usually no heat treatment required

 

Soft annealing:
720°C 1 hour per 25 mm part thickness
slow controlled cooling inside the furnace
max. 245 HB

Hardening:
880 °C
keep curing temperature for 15 to 30 minutes
cooling in hot bath/oil/compressed gas
obtainable hardness: 50 HRC

Tempering:
slow heating to tempering temperature immediately after hardening;
minimum time in furnace: 1 hour per 25 mm part thickness

TEMPERING CHART:

 

TECHNICAL TIP:
  • uniform hardness over the entire cross section
  • improved weldability
  • higher toughness than 1.2738

Available in the web shop as:
Data sheet 1.2738 TSHH

Open PDF

Material grades brochure

Material grades brochure

Material grades poster

Material grades poster

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