目前用碳素钢成批制造的全金属客车,由于车体构件腐蚀严重,经常需要修理,更换部分包板、地板和骨架。在车辆使用期限内,用于消除车体的锈蚀损坏和修复油漆的费用大约为4～5万卢布(新车体价值3.86万卢布)。修理一个车体平均消耗钢材10吨左右,一辆车每年重新涂漆大约要用3吨涂料。采用耐腐蚀钢材可以延长车辆使用期 At present, all-metal passenger cars made of carbon steel in batch are often required to be repaired or replaced due to the serious corrosion of body parts, and the replacement of part of the package board, floor and skeleton. During the life of the vehicle, the cost of removing rust and repairing paint on the body is about 40,000 to 50,000 rubles (the new body worth 38,600 rubles). Repairing a car body consumes about 10 tons of steel on average, and a car recoats about 3 tons of paint a year. The use of corrosion-resistant steel can extend vehicle life