45#寤ｆ硾鐢ㄤ簬姗�(j墨)姊板埗閫�锛岄€欑ó閶肩殑姗�(j墨)姊版€ц兘寰堝ソ銆備絾鏄€欐槸涓€绋腑纰抽嫾锛屾番鐏€ц兘骞朵笉濂�锛�45铏熼嫾鍙互娣‖鑷矵RC42~46銆傛墍浠ュ鏋滈渶瑕佽〃闈㈢‖搴�锛屽張甯屾湜鐧�(f膩)鎻�45#閶煎劒(y艒u)瓒婄殑姗�(j墨)姊版€ц兘锛屽父灏�45#閶艰〃闈㈡徊纰虫番鐏�锛岄€欐ǎ灏辫兘寰楀埌闇€瑕佺殑琛ㄩ潰纭害 鍖栧(xu茅)鎴愬垎
C 0.42~0.48
Si 0.15~0.35
Mn 0.60~0.90
P鈮�0.030
S鈮�0.035
Cu鈮�0.30
Ni鈮�0.20
Cr鈮�0.20 鍔涘(xu茅)鎬ц兘
渚涜波鐙€鎱�(t脿i)纭害
137~170HBS
167~229HBS
201~269HBS銆�
鎶楁媺寮�(qi谩ng)搴�>686MPa
灞堟湇寮�(qi谩ng)搴�>490MPa
浼搁暦鐜囄�5>17%
鏀剁府鐜囅�>45%
娌栨搳闊屾€у€�>78J/cm2
纭害201~269HB
娣伀銆佸洖鐏(gu墨)鑼� 娣伀婧害820鈩儈870鈩冿紝姘村喎锛屽洖鐏韩搴�550~650鈩�锛屽嚭鐖愭サ鍐�銆�
鎶楁媺寮�(qi谩ng)搴�>686MPa锛屽眻鏈嶅挤(qi谩ng)搴�>490MPa锛屼几闀风巼未5>17%锛屾敹绺巼蠄>45%锛屾矕鎿婇煂鎬у€�>78J/cm2锛岀‖搴�201~269HB銆�
甯哥敤涓⒊瑾�(di脿o)璩�(zh矛)绲�(ji茅)妲�(g貌u)閶�銆傝┎閶煎喎濉戞€т竴鑸�锛岄€€鐏�銆佹鐏瘮瑾�(di脿o)璩�(zh矛)鏅�(sh铆)瑕佺◢濂�锛屽叿鏈夎純楂樼殑寮�(qi谩ng)搴﹀拰杓冨ソ鐨勫垏鍓婂姞宸ユ€�锛岀稉(j墨ng)閬╃暥(d膩ng)?sh霉)鑷掑唇骞氱—闄㈢絺鑹睝寰椾竴瀹氱殑闊屾€с€佸鎬у拰鑰愮（鎬�锛屾潗鏂欎締婧愭柟渚裤€傞仼鍚堜簬姘剨鍜屾艾寮х剨锛屼笉澶仼鍚堜簬姘ｇ剨銆傜剨鍓嶉渶闋�(y霉)鐔�锛岀剨鍚庢噳(y墨ng)閫�(j矛n)琛屽幓鎳�(y墨ng)鍔涢€€鐏�銆�
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1495鈩冨乏鍙�锛岀⒊鍚噺0.42~0.50%銆�
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1. 45閶兼番鐏悗娌掓湁鍥炵伀涔嬪墠锛岀‖搴﹀ぇ浜嶩RC55锛堥珮鍙仈(d谩)HRC62锛夌偤鍚堟牸銆�
瀵�(sh铆)闅涙噳(y墨ng)鐢ㄧ殑楂樼‖搴︾偤HRC55锛堥珮闋绘番鐏獺RC58锛夈€�
2. 45閶间笉瑕侀噰鐢ㄦ徊纰虫番鐏殑鐔辫檿鐞嗗伐钘�銆�
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