不锈钢密度是多少？怎么计算？

1Cr17Mo                                7.70     
0Cr25Ni20                              7.98
1Cr15                                  7.70   
0Cr18Ni12Mo2Cu2                        7.98
3Cr16                                  7.70        
00Cr18Ni14Mo2Cu2                       7.98
00Cr27Mo                               7.67                    
0Cr19Ni12Mo3                           7.98
1Cr17                                  7.70        
00Cr19Ni13Mo3                          7.98
00Cr17                                 7.70             
0Cr18Ni11Nb                            7.98
7Cr17                                  7.70   
0Cr17Ni12Mo2N                          7.98
1Cr12                                  7.76         
00Cr17Ni14Mo2                          7.98
1Cr13                                  7.76                    
0Cr17Ni12Mo2N                          7.98
0Cr13Ai                                7.75    
00Cr17Ni13Mo2N                         7.98
00Cr12                                 7.76          
0Cr18Ni16Mo5                           7.98
0Cr13Ai                                7.75       
1Cr17Ni7                               7.93
2Cr13                                  7.75     
0Cr23Ni13                              7.93
3Cr13                                  7.75    
1Cr17Ni8                               7.93
0Cr18Ni13Si4                           7.75       
1Cr18Ni9                               7.93
00Cr18Mo2                              7.75      
1Cr18Ni9Si3                            7.93
0Cr26Ni5Mo2                            7.80       
0Cr19Ni9                               7.93
1Cr17Mn6Ni5N                           7.93   
00Cr19Ni11                             7.93
00Cr18Ni9S13                           7.93        
0Cr19Ni9N                              7.93
1Cr17Mn6Ni6N                           7.93   
0Cr18Ni11Ti                            7.93
1Cr18nNi8Ni5N                          7.93      
0Cr17Ni17Al                            7.93

通俗一点的写法是

密度值      牌号