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Lowering tension

In our selected range you can find the right material for virtually any application.

Franz Kohler
Head of Product Division

1.3343 High-speed steel (HSS)

Designation

DIN:HS 6-5-2 C
AFNOR:Z 85 WDCV 6
UNI:X 82 WMoV 6 5
AISI:M 2 reg. C
 

Chemical composition:

C0.9
Si0.3
Mn0.3
Cr4.0
Mo5.0
V1.9
W6.2
 

Strength:

≈ 920 N/mm²

Thermal conductivity at 100 °C:

27.4 W/m K


Character:

high-speed steel featuring high resistance to abrasion and wear in combination with high toughness and compressive strength. High heat resistance, therefore ideal for through hardening

Application:

blocks for eroding, cold forming tools such as cutting, fine blanking and impact extrusion punches and dies
inserts with a very high wear resistance

 


Treatment by

is possible:
Polishing

highly suitable:
Nitriding, EDM, coating

 


Heat treatment:

Soft annealing:
820 to 850 °C for about 2 to 5 hours
slow controlled cooling of 10 to 20 °C per hour to about 550 °C;
further cooling in air. Maximum 270 HB

Hardening:
1190 - 1230 °C
Quenching in oil/compressed gas/air/hot bath
obtainable hardness: 66 HRC

Tempering:
slow heating to tempering temperature (to avoid forming of cracks)
immediately after hardening;
triple tempering is recommended

 

Annealing graph:


Technical tip
  • excellent for PVD and CVD coating; highest dimensional stability because the steel was tempered at more than 520 °C.

Available in the web shop as:
Data sheet 1.3343

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Material grades brochure

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