材料编号 空气里的最大温度要求，以摄氏度（ C° ）计算 抗含硫物性 减少的 渗碳 强变化的温度要求
    氧化的 减少的      
1.4713 800 ●●●● ●● ● ● ●
1.4720 800 ●●● ●● ● ● ●
1.4724 850 ●●●● ●● ● ● ●
1.4742 1000 ●●●● ●● ● ● ●
1.4749 1100 ●●●● ●●● - ● -
1.4762 1150 ●●●● ●●●● ● ● -
1.4821 1100 ●●● ●● ●● ●● ●
1.4828 1000 ●● ● ●●● ●● ●
1.4835 1050 ●● ● ●●● ●● ●●
1.4841 1150 ●● ● ●●● ●● -
1.4845 1050 ●● ● ●●● ●● ●
1.4864 1100 ●●● ● ●●● ●●● ●●●
1.4876 1100 ●● ● ●●● ●●● ●●
1.4877 1000 ●●● ●● ●●● ●●●● ●●●●
1.4878 850 ●● ● ●●● ●● ●●
1.4893 1050 ●● ● ●●● ●● ●●
2.4816 1050 ● ● ●●● ●●● ●
2.4851 1150 ● - ●●● ●●●● ●●●●
2.4856 1000 ●● ● ●●● ●●●● -
             
             
很好 ●●●●          
好 ●●●          
中等 ●●          
较低 ●