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<p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 25px;">9CrWMn具鋼有一些裂紋敏感性，鍛造加熱時不宜迅速加熱，最好在650-750度進行一次預熱，鍛造加熱溫度為1130-1150度，終鍛溫度應大于800-850度，鋼錠鍛造時取上限溫度。<span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">●化學成份：</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">碳 C ：0.85～0.95</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">硅 Si：&le;0.40</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">錳 Mn：0.90～1.20</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">硫 S ：&le;0.030</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">磷 P ：&le;0.030</span><img src="http://i0.qhimg.com/dr/200__/t01d888c443fdc2efbf.jpg" style="margin: 0px; padding: 0px; outline: 0px; border: none;" /><span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">鉻 Cr：0.50～0.80</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">鎳 Ni：允許殘余含量&le;0.25</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">銅 Cu：允許殘余含量&le;0.30</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;">鎢 W ：0.50~0.80<span style="margin: 0px; padding: 0px; outline: 0px;">硬度 ：退火,241～197HB,壓痕直徑3.9～4.3mm;淬火,&ge;62HRC</span><img src="http://i0.qhimg.com/dr/200__/t01562b1ef7ab6fb8f1.jpg" style="margin: 0px; padding: 0px; outline: 0px; border: none;" /><span style="margin: 0px; padding: 0px; outline: 0px;">●熱處理規范及金相組織：</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px;">熱處理規范：淬火,800～830℃油冷。</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px;">●交貨狀態：鋼材以退火狀態交貨。</span></span></span></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 25px;"><span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;"><span style="margin: 0px; padding: 0px; outline: 0px;">退火：一般退火采用780-800度，保溫4-6小時，以&le;50度/小時，冷卻到550度出爐空冷，等溫退火采用700-800度保溫2-4小時，然后再670-720度保溫，保持2-4小時，以&le;50度/小時冷速冷卻到500度出爐空冷，退火硬度為241-197HB</span></span></span></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <span style="margin: 0px; padding: 0px; outline: 0px; line-height: 25px;"><span style="margin: 0px; padding: 0px; outline: 0px; line-height: 28px;"><span style="margin: 0px; padding: 0px; outline: 0px;">9CrWMn模具鋼材為低合金冷作模具鋼.。該鋼具有一定的淬透性和耐磨性，淬火變形較小，碳化物分布均勻顆粒細小。</span><br style="margin: 0px; padding: 0px;" /> <span style="margin: 0px; padding: 0px; outline: 0px;">9CrWMn模具鋼材通常用于制造截面不大而形狀較復雜的冷沖模以及各種量規量具等。</span></span></span></p>