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Specifications of high-carbon compounded steel ZD-0803 consisting of:

Y7A: C 0.7, Si 0.2, Cr 0.2, Mn 0.2

10XTMF: C 1.0, Si 0.2, Cr 5.0, Mn 0.4

Annealing: beating from v<100 degrees/hour to 850-870°C, cooling with furnace from v<50 degrees/hour to 500-600°C, air Heat treatments: 960-980°C. Tempering 180-220°C, 1.5 hour, air.

Technological properties The temperature of forging, °C: beginning 1180, finish 800.

Composition and cycle of etching 15-% water solution of ammonium persulphate – 10 min, wash in running water with the help of cotton pad. Repeat

etching 2-3 times ‘till the necessary relief reveals. Instead of ammonium persulpahte 5% water solution of nitric acid can be used.

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