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  精密合金牌号(GB/T15018-1994)
| 
 合金牌号  | 
 化学成分(质量分数)(%)  | 
 其他元素  | ||||||||||||
| 
 C  | 
 S  | 
 P  | 
 Mn  | 
 Si  | 
 Ni  | 
 Cr  | 
 Co  | 
 M0  | 
 Cu  | 
 Al  | 
 Nb  | 
 Fe  | ||
| 
 ≤  | ||||||||||||||
| 
 lJ06①  | 
 O.04  | 
 O.015  | 
 O.015  | 
 ≤O.10  | 
 ≤O.15  | 
 | 
 | 
 | 
 | 
 | 
 5.5~6.5  | 
 | 
 余量  | 
 | 
| 
 1J12  | 
 0.03  | 
 O.015  | 
 O.015  | 
 ≤O.10  | 
 ≤0.15  | 
 | 
 | 
 | 
 | 
 | 
 1.6~ 12.4  | 
 | 
 余量  | 
 | 
| 
 lJl3  | 
 O.04  | 
 O.015  | 
 O.015  | 
 ≤0.10  | 
 ≤O.15  | 
 | 
 | 
 | 
 | 
 | 
 12.8~14.O  | 
 | 
 余量  | 
 | 
| 
 1J16  | 
 0.03  | 
 O.015  | 
 O.015  | 
 ≤O.10  | 
 ≤O.15  | 
 | 
 | 
 | 
 | 
 | 
 15.5~16.3  | 
 | 
 余量  | 
 | 
| 
 lJl7  | 
 0.03  | 
 O.020  | 
 0.020  | 
 ≤0.60  | 
 ≤0.20  | 
 | 
 15.5~ 
16.5  | 
 | 
 | 
 | 
 | 
 | 
 余量  | 
 | 
| 
 1J18  | 
 O.03  | 
 O.020  | 
 0.020  | 
 O.30~ 
O.70  | 
 ≤0.15  | 
 O.5~ 
O.7  | 
 17.0~ 
18.5  | 
 | 
 | 
 | 
 | 
 | 
 余量  | 
 Ti:0.3 
~O.7  | 
| 
 1J22  | 
 0.04  | 
 0.020  | 
 O.020  | 
 ≤0.30  | 
 ≤0.30  | 
 ≤0.5  | 
 | 
 49.O 
51.0  | 
 | 
 ≤0.2  | 
 | 
 | 
 余量  | 
 V:0.8~ 
1.8  | 
| 
 1J30  | 
 0.04  | 
 O.020  | 
 0.020  | 
 ≤0.40  | 
 ≤O.30  | 
 29.5~ 
30.5  | 
 | 
 | 
 | 
 | 
 | 
 | 
 余量  | 
 | 
| 
 1J31  | 
 0.04  | 
 0.020  | 
 0.020  | 
 ≤O.40  | 
 ≤0.30  | 
 30.5~ 
31.5  | 
 | 
 | 
 | 
 | 
 | 
 | 
 余量  | 
 | 
						
  | ||