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SYMBOL - GRANULATION:
1 K - 0.5 – 1.6
2 K - 1.6 – 2.5
3 K - 2.5 – 3.5
4 K - 3.5 – 4.5
5 K - 4.5 – 6.3
6 K - 6.3 – 8.0
HARDNESS:
740 – 850 HV
61 – 64 HRC
CHEMICAL COMPOSITION:
C 3.00 – 3.40%
Mn 0.30 – 1.00%
Si 1.00 – 1.50%
P 0.10 – 0.30%
S 0.07 – 0.17%.


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