Hot-dip galvanized plate suitable for low-temperature environment for gas meter shell and production method thereof

The invention discloses a hot-dip galvanized plate suitable for a low-temperature environment for a gas meter shell. The hot-dip galvanized plate comprises a substrate and a coating, and is characterized in that the substrate comprises the following chemical components of, in percentage by mass, less than or equal to 0.006% of C, less than or equal to 0.01% of Si, 0.08%-0.50% of Mn, less than or equal to 0.010% of P, less than or equal to 0.008% of S, 0.025%-0.060% of Als, 0.03%-0.09% of Ti, 0.0005%-0.0050% of B, less than 0.004% of N, less than 0.004% of O, less than or equal to 0.03% of Cu +Ni +Cr +Mo +Sn +As, and the balance Fe and inevitable impurities; the mass percentage of total aluminum in the coating is controlled to be 0.18%-0.23%; and the hot-dip galvanized steel plate is produced through the processes of steelmaking, hot rolling, acid pickling, cold rolling, annealing, galvanizing and finishing, the produced hot-dip galvanized steel plate has good deep drawability, the yield strength is 130-170 MPa, the tensile strength is 280-300 MPa, the A80 elongation is larger than or equal to 43%, the n value is larger than or equal to 0.21, and the r value is larger than or equalto 2.3, and after the part subjected to deep drawing forming is placed for 5 h at the low temperature of-30 DEG C to-50 DEG C, a shot with the weight of 6 kg is used for freely falling from the position with the height of 1 m to impact the part, the part is not cracked, and the use requirement of the gas meter shell is met.