Production practice of ASTM a516 gr.70 Steel Plate

1.the open rolling temperature of the second stage of ASTM a516 gr.70 medium and low pressure vessel Steel Plate is less than 9 50 ℃, and the final rolling temperature is 8 70 ~ 80 ℃. Hot spot isProduction practice of ASTM a516 gr.70 medium and low pressure vessel Steel Plate

1.the open rolling temperature of the second stage of ASTM a516 gr.70 medium and low pressure vessel Steel Plate is less than 9 50 ℃, and the final rolling temperature is 8 70 ~ 80 ℃. Hot spot is pyrotechnic: normalizing temperature 9 10 + 10 ℃ The heating rate is 2. Zm in/ m m.

2 .after the determination of the smelting composition, a reasonable heating technique system was established to ensure the solid solution of NB element into the austenite, but to prevent the high heating temperature and lead to grain coarsening, which is not conducive to the development of the austenite. Comprehensive properties of rolled ASTM a516 gr70 steel plate.

3.The raw production practice of ASTM a516 gr.70 steel plate provides a technical foundation for the production of normalizing steel plate with 46 ℃ shock.

ASTM A516 GR.70 Chemical Composition:

ASTM A516 GR.70 Mechanical Property:

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