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DIN 1.2842_AISI O2 Cold Work Tool Steel

Cold work tool steel  DIN 1.2842/AISI O2 ---- medium alloyed cold work steel, with high hardening capacity, good compressive strength.


Equivalent Grade of Steel 1.2842               

Standard

Grade

AISI/SAE

O2

W.Nr/DIN

1.2842

  

Typical Chemical Composition (%)

C

Si

Mn

Cr

V

0.85-0.95

0.10-0.40

1.90-2.10

0.20-0.50

0.05-0.15


Heat Treatment of Cold work tool steel 1.2842 / O2

Annealing: 700 to 730, slow cooling in furnace (10-20/hr), down to approx. 600, cooling in air. Hardness after annealing: max. 230HB.

Stress relieving: approx. 650, slow cooling in furnace. Hold in neutral atmosphere for 1 to 2hours.

Hardening: 790 to 820, oil. Quenching: oil. Hardness obtainable, 60 to 64 HRC.

Tempering: Slowly heating to tempering temperature right after hardening. Recommended to temper 2 or 3 times to increase toughness.

Tempering  

100

200

300

400

500

HRC

64

62

57

52

46

* Hardening temperature: 800, specimen size: dia25mm

 

Properties of Cold work tool steel 1.2842 / O2

Oil hardening type cold work steel. Good dimensional stability, edge retaining and toughness. Deep hardening properties can be considered as good for smaller and medium-sized sections.

 

Applications of steel  1.2842 / O2

Blanking and punching dies for sheet thickness up to 6 mm; small straight and circular shear blades, also for paper and plastics; thread cutting tools; gauges and other measuring tools; cold trimming tools; small inserts for plastic moulds and similar tools.



Available   Size of steel 1.2842 / O2
Round:Dia   12-50mmhot rolled

Dia   50-600mmforged

Flat/Square:Thickness3-40mmhot rolled


20-350mmhot forged

Width800mm max



 


Get quotation about tool steel 1.2842 / O2 round/flat bars,plate and forged block,please contact us.

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