鍐疯粙閶肩殑瀵嗗害鏄�濡備綍瑷堢畻鐨勶��
    鐔辫粙閶兼澘瀵嗗害閮藉湪7.9g/cm3宸﹀彸銆傚叿楂旈倓瑕佺湅鎴愪唤閶兼槸鍚�纰抽噺鍦�0.04%-2.3%涔嬮枔鐨勯惖纰冲悎閲戙�傛垜鍊戦�氬父灏囧叾鑸囬惖鍚堢ū鐐洪嫾閻�锛岀偤浜嗕繚璀夊叾闊屾�у拰濉戞�э紝鍚�纰抽噺涓�鑸�涓嶈秴閬�1.7%銆傞嫾鐨勪富瑕佸厓绱犻櫎閻点�佺⒊澶�锛岄倓鏈夌��銆侀尦銆佺～銆佺７绛夈��

1銆佹寜鍝佽唱鍒嗛��
(1) 鏅�閫氶嫾锛圥≤0.045%锛孲≤0.050%锛�
(2) 鍎�(y艒u)璩�閶硷紙P銆丼鍧�≤0.035%锛� (3) 楂樼礆鍎�(y艒u)璩�閶硷紙P≤0.035%锛孲≤0.030%锛�

2銆佹寜鍖栧�告垚浠藉垎椤�
(1) 纰崇礌閶硷細a.浣庣⒊閶硷紙C≤0.25%锛夛紱b.涓�纰抽嫾锛圕≤0.25~0.60%锛�锛沜.楂樼⒊閶硷紙C≥0.60%锛夈��
(2)鍚堥噾閶硷細a.浣庡悎閲戦嫾锛堝悎閲戝厓绱犵附鍚�閲�≤5%锛塨.涓�鍚堥噾閶硷紙鍚堥噾鍏冪礌绺藉惈閲忥��5~10%锛塩.楂樺悎閲戦嫾锛堝悎閲戝厓绱犵附鍚�閲忥��10%锛�銆�