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DIN 1.2842

Tool steel with good dimensional stability

DIN 1.2842 tool steel with good dimensional stability during hardening. Due to its good machinability and polishability, it is ideal for precision tools, gauges and forming tools with lower loads. It is popular in tool shops and workshops for universal use in smaller production runs.


Alternative designation: 90MnCrV8, ČSN 19312
Type: Tool steel

Heat treatment:

  • Preheat: 600–700 °C

  • Quenching: 790–820 °C (oil)

  • Tempering: 150–300 °C depending on the required hardness (e.g. approx. 60 HRC after tempering at 180 °C)

Round bars, rolled, forged, annealed

10

15

20

25

30

35

41

46

51

56

61

66

71

76

81

86

91

101

111

121

132

142

152

162

172

182

192

202

212

222

232

240

252

262

272

282

302

320

340

360

380












Flat bars, rolled, annealed


500











6

X











8

X











10

X











15

X











20

X











25

X











30

X











35

X











40

X











50

X











60

X











70

X











80

X











90

X











100

X













Forged, annealed blocks


410

510

610

710

810







410

X

X

X

X

X
































Features:

  • Good machinability in the annealed condition

  • Fine-grained structure, suitable for precision tools

  • Good dimensional stability during hardening

  • Easily polishable

  • Medium wear resistance

  • Hardness after hardening up to 62 HRC

Use:

  • Precision tools and gauges

  • Small shearing, forming and cutting tools

  • Knives, jaws, holders, guides

  • Tools requiring good stability and easy processing

  • Universal use in tool shops and mechanical engineering

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