銆€銆€鏉愭枡鍚嶇ū锛� 55Si2Mn
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銆€銆€妯�(bi膩o)婧�(zh菙n)锛�GB/T 1222-1984
銆€銆€鈼�鐗规€у強閬╃敤鑼冨湇锛�
銆€銆€55Si2Mn褰堢哀閶肩鍜岄尦鎻愰珮褰堟€у挤(qi谩ng)搴﹀拰灞堝挤(qi谩ng)姣�锛屾彁楂樻番閫忔€�锛屾姉鍥炵伀绌�(w臎n)瀹氭€у拰鎶楁澗寮涚┅(w臎n)瀹氭€�锛岄亷鐔辨晱鎰熸€т篃杓冨皬锛屼絾鑴⒊鍌惧悜杓冨ぇ锛屽挨鍏舵槸纭呰垏纰冲惈閲忚純楂樻檪锛岀⒊鏄撲簬鐭冲ⅷ鍖�锛屼娇閶艰畩鑴�銆�55Si2Mn褰堢哀閶肩敤浣滄苯杌�銆佹嫋鎷夋(j墨)鍜屾(j墨)杌婁笂鐨勬笡鎸澘绨у拰铻烘棆褰堢哀銆佹埃缂稿畨鍏ㄩ枼绨�锛岄倓鍙敤浣�250鈩�浠ヤ笅浣跨敤鐨勮€愮啽褰堢哀銆�
銆€銆€鈼�鍖栧(xu茅)鎴愪唤锛�
銆€銆€纰� C 锛�0.52锝�0.60
銆€銆€纭� Si锛�1.50锝�2.00
銆€銆€閷� Mn锛�0.60锝�0.90
銆€銆€纭� S 锛�鈮�0.035
銆€銆€纾� P 锛�鈮�0.035
銆€銆€閴� Cr锛�鈮�0.35
銆€銆€閹� Ni锛�鈮�0.35
銆€銆€閵� Cu锛�鈮�0.25
銆€銆€鈼�鍔涘(xu茅)鎬ц兘锛�
銆€銆€鎶楁媺寮�(qi谩ng)搴� 蟽b (MPa)锛�鈮�1274(130)
銆€銆€灞堟湇寮�(qi谩ng)搴� 蟽s (MPa)锛�鈮�1176(120)
銆€銆€浼搁暦鐜� 未10 (锛�)锛�鈮�6
銆€銆€鏂烽潰鏀剁府鐜� 蠄 (锛�)锛�鈮�30
銆€銆€纭害 锛氱啽杌�,鈮�302HB;鍐锋媺+鐔辫檿鐞�,鈮�321HB
銆€銆€鈼�鐔辫檿鐞嗚(gu墨)鑼冨強閲戠浉绲勭箶锛�
銆€銆€鐔辫檿鐞嗚(gu墨)鑼冿細娣伀870鈩�卤20鈩�,娌瑰喎; 鍥炵伀480鈩�卤50鈩�(鐗规畩闇€瑕佹檪,卤30鈩�)銆�
銆€銆€閲戠浉绲勭箶锛氬洖鐏眻姘忛珨銆�
銆€銆€鈼�浜よ波鐙€鎱�(t脿i)锛�鐔辫粙閶兼潗浠ョ啽铏曠悊鎴栦笉鐔辫檿鐞嗙媭鎱�(t脿i)浜よ波锛屽喎鎷夐嫾鏉愪互鐔辫檿鐞嗙媭鎱�(t脿i)浜よ波銆�
55Si2Mn褰堢哀閶艰€愭矕鎿�55Si2Mn褰堢哀閶兼鏉愯秴澶х洿寰戝綀绨ч嫾妫掑綀绨ч嫾鍘氭澘
