閶兼澘銆佹澘鏂�銆侀嫾鏉�锛屽垏鍓�-闆跺敭-鎵圭櫦(f膩)-鍙波鍒颁粯娆�锛佷繚璀夋鍝侊紒鍋囦竴璩犲崄锛�
|
鐗岃櫉(h脿o)
|
C
|
Si
|
Mn
|
P
|
S
|
V
|
Nb
|
Al
|
Ti
|
|
Q345A
|
0.20
|
鈮�0.55
|
鈮�1.70
|
鈮�0.045
|
鈮�0.045
|
0.02-0.15
|
0.015-0.060
|
-
|
0.02-0.20
|
|
Q345B
|
鈮�0.20
|
鈮�0.55
|
鈮�1.70
|
鈮�0.040
|
0.040
|
0.02-0.15
|
0.015-0.060
|
-
|
0.02-0.20
|
|
Q345C
|
鈮�0.20
|
鈮�0.55
|
鈮�1.70
|
鈮�0.035
|
鈮�0.035
|
0.02-0.15
|
0.015-0.060
|
鈮�0.015
|
0.02-0.20
|
|
Q345D
|
0.18
|
鈮�0.55
|
鈮�1.80
|
鈮�0.030
|
鈮�0.030
|
0.02-0.15
|
0.015-0.060
|
鈮�0.015
|
0.02-0.20
|
|
Q345E
|
鈮�0.18
|
鈮�0.55
|
鈮�1.80
|
鈮�0.025
|
鈮�0.025
|
0.02-0.15
|
0.015-0.060
|
鈮�0.015
|
0.02-0.20
|
