• 15MnVB

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WKZ029-2006          15MnVB

1.Steel ingot simmer for 1 hour, ingot, billet according to Ⅱgroup steel of heating.

2. finishing temperature ≤900 ℃.

3. After cooled Steel plate returned to red temperature 700-750 ℃.

4.Steel plate tempering: temperature of 650℃, holding time 3.5 min/m

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