1144¬O¤¤ºÒ©ö¤Á«d¿û«UºÙ©ö¨®ÅK¡C§NÀ½À£¤uÃÀ¨Ï±o©ö«d¤Á¿û²£«~ªí±¥ú·Æ©ú«G¡A¥Ñ©ó¿û¤¤¥[¤J²¸¡BÁC¡B¹]¡B¶t¡BÖ´¡Bâëµ¥©ö¤Á«d¤¸¯À¡A¨Ï¿ûªº¤Á«d§Ü¤O´î¤p¡A¦P®É©ö¤Á«d¤¸¯À¥»¨ªº¯S©Ê©M©Ò§Î¦¨ªº¤Æ¦Xª«°_¼í·Æ¤Á«d¤M¨ãªº§@¥Î´î»´¤F¿i·l¡A±q¦Ó°§C¤F¤u¥óªºªí±²ÊÁW«×¡A´£°ª¤F¤M¨ã¹Ø©R©M¥Í²£®Ä²v¡C¥Ñ©ó©ö¨®ÅK¨ã¦³¥X¦âªº©ö¤Á«d©Ê¯à±`³Q¥Î©ó¾÷§É©M¦Û°Ê¾÷§É¤Á«d¥[¤u¡C±`¥Î§@¾÷¾¹¤WªºÁ³±ì¡BÁ³´U¡B³s±µÁ³®ê¡BÂà¦V©Ô±ì²y§ÎÁ³®ê¡Bªo¬¦¶Ç°Ê¾¦½ü¡Bµ·§þ¡B¥ú±ì¡B¾¦±ø©MªáÁä¶b¡B¤âªí¹s¥óµ¥¡C
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Carbon, C 0.40 - 0.480 %
Iron, Fe 97.50 - 98.01%
Manganese, Mn 1.35 - 1.65 %
Phosphorous, P <= 0.040 %
Sulfur, S 0.240 - 0.330 %
³o¬O¤@ºØ©ö¤Á«d¿û¡A¹ïÀ³§Ú°êµP¸¹¬°Y40Mn¡]¾÷±ñ³]p¤â¥U¤¤¥~µP¸¹¹ï·Óªí¡^¡A¼Ð·Ç¸¹GB/T8731,¦ý¨âªÌ¦Xª÷¦¨¤Àµy¦³®t²§¡A³o¥u¬O¨â°ê¼Ð·Çªº®t²§¡A¹ï©Ê¯à¼vÅT¤£¤j¡C