32Mn2Si2A F-2 protective steel

32Mn2Si2A steel plate grades
Codename: F-2.
Executive standard: GJB3166-98
This standard specification is applicable to hot-rolled steel plates with a thickness of 4.1 to 7.0 mm for protective parts.

32Mn2Si2A smelting method: steel should be smelted by electric arc furnace. After negotiation between the supplier and the buyer, other methods can also be used for smelting.

32Mn2Si2A Delivery status: The steel sheet should be delivered after softening and annealing.

32Mn2Si2A chemical composition:
C: 0.29～0.35 (allowable deviation -0.01);
Si: 1.50～1.90 (allowable deviation ±0.05);
Mn: 1.60～2.00 (allowable deviation ±0.05);
S: ≤0.030 (allowable deviation ±0.05);
P:≤0.030;
Cu:≤0.30.

32Mn2Si2A hardness: the delivery hardness of the steel plate should not be greater than 255HBS 10/3000;
After heat treatment (quenching temperature 920°C～940°C plus tempering temperature 220°C～240°C, coolant: oil), it is 415～555HBS 10/300.

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