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Mat.No. 1.3265/DIN S18-1-2-10/EN HS18-0-1-10/AISI T5

Designation by Standards Mat. No. DIN EN AISI 1.3265 S18-1-2-10 HS18-0-1-10 T5 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.76 max. 0.45 max. 0.40 4.15 0.65 - 1.55 18.00 Co: 9.50 Description This alloy is a High Speed, tungsten type tool steel. It is a deep hardening steel. Applications Generally used as cutting tools, broaches and cold extrusion punches, turning blades, punchers, metal working blades.
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  • Mat.No. 1.3265/DIN S18-1-2-10/EN HS18-0-1-10/AISI T5

Mat.No. 1.3265/DIN S18-1-2-10/EN HS18-0-1-10/AISI T5


Designation by Standards

Mat. No.DINENAISI
1.3265S18-1-2-10HS18-0-1-10T5


Chemical Composition (in weight %)

CSiMnCrMoNiVWOthers
0.76max. 0.45max. 0.404.150.65-1.5518.00Co: 9.50


Description
This alloy is a High Speed, tungsten type tool steel. It is a deep hardening steel.


Applications
Generally used as cutting tools, broaches and cold extrusion punches, turning blades, punchers, metal working blades.


Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 217
Density [g/cm3]: 8.70
Thermal conductivity [W/m.K]: 19.0
Electric resistivity [Ohm mm2/m]: 0.65
Specific heat capacity [J/g.K]: 0.46


Soft Annealing
Heat to 800-830oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 300.


Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 600-650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.


Hardening
Harden from a temperature of 1250-1280oC followed by salt bath or thermal quenching or warm bath approx. 550oC.


Tempering
Tempering temperature: 550-590oC.


Tempering Temperature (oC) vs. Hardness (HRC)

100oC150oC200oC250oC300oC350oC400oC450oC500oC550oC600oC650oC
64.064.563.062.562.062.062.563.664.866.064.060.0


Tempering Diagram

Click the image to enlarge the diagram.


Forging
Hot forming temperature: 1150-900oC.


Machinability
Machinability of T5 is only fair. It ranks as 50% that of the W group water hardening simple tool steels.


Corrosion Resistance
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.


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