双相钢（DP）作为一种先进高强钢，具有强度高、屈强比低、初始加工硬化速率高以及强度和延性匹配好的特点。
As one of advanced high strength steel, dual phase (DP) steel is widely used in producing cars nowadays and in the coming future.
本文介绍了高强高韧性超低氢新J807CF焊条，其各项性能均达到国外同类产品的先进水平，是WCF—80钢的专用配套焊条。
The paper introduces the high toughnesses Ultra-low hydrogen electrode (new J807CF) which matches WCF—80 steel for manual arc welding.
通过不同的控制冷却工艺实现了用相同的成分获得不同强度等级要求的汽车用先进高强度钢。
The advanced high strength automobile steel of same chemical composition can be manufactured by different controlled cooling processes for different strength classes.
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