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4Cr13 steel plate delivery status

4Cr13 steel plate delivery status

4Cr13 standard: GB/T 1220-1992. The 4Cr13 characteristic is higher than 3Cr13 hardness and good corrosion resistance after quenching.
4Cr13 steel plate chemical composition:


C

Si

Mn

S

P

Cr

Ni

0.36~0.45

≤0.60

≤0.80

≤0.030

≤0.035

12.00~14.00

≤0.60

4Cr13 steel plate mechanical property
Hardness: annealing, less than 201HB, the indentation diameter 3.9~4.3mm; quenching, more than 50HV
Specification and metallographic structure of heat treatment:
Specifications for heat treatment: 1) annealing at 800~900 DEG C or chilled at about 750 DEG C; 2) quenching, 1050~1100 DEG C, oil cold. (3) Tempering, quick cooling at 200~300 DEG C.
Microstructure: the microstructure is characterized by Martensite.

Delivery status: 4Cr13 steel plate is delivered in annealed condition. Forging: oil quenching for some crack sensitivity of die steel, forging heating for rapid heating, preferably a preheating in 650-750 degrees, forging temperature is 1130-1150 degrees, the final forging temperature should be higher than 800-850 degrees, the maximum temperature of ingot forging. The lower limit temperature should be taken during blank forging.

BBN steel is specialized in supplying 4Cr13 steel plate. We have 17 years experience in the exportation of 4Cr13 steel plate. Please feel free to contact us.

 

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