楼梯之家讯：portant; word-wrap: break-word !important;">沉淀硬化型不锈钢。具有有很好的成形性能和良好的焊接性，可作为超高强度的材料在核工业、航空和航天工业中应用。 按成分可分为portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">系（portant; word-wrap: break-word !important;">SUS400portant; word-wrap: break-word !important;">）、portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Niportant; word-wrap: break-word !important;">系（portant; word-wrap: break-word !important;">SUS300portant; word-wrap: break-word !important;">）、portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Mnportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Niportant; word-wrap: break-word !important;">（portant; word-wrap: break-word !important;">SUS200portant; word-wrap: break-word !important;">）及析出硬化系（portant; word-wrap: break-word !important;">SUS600portant; word-wrap: break-word !important;">）。portant; word-wrap: break-word !important;"> 200 portant; word-wrap: break-word !important;">系列铬portant; word-wrap: break-word !important;">-portant; word-wrap: break-word !important;">镍portant; word-wrap: break-word !important;">-portant; word-wrap: break-word !important;">锰 奥氏体不锈钢portant; word-wrap: break-word !important;"> 300 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">沉淀硬化型不锈钢。具有有很好的成形性能和良好的焊接性，可作为超高强度的材料在核工业、航空和航天工业中应用。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">按成分可分为portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">系（portant; word-wrap: break-word !important;">SUS400portant; word-wrap: break-word !important;">）、portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Niportant; word-wrap: break-word !important;">系（portant; word-wrap: break-word !important;">SUS300portant; word-wrap: break-word !important;">）、portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Mnportant; word-wrap: break-word !important;">－portant; word-wrap: break-word !important;">Niportant; word-wrap: break-word !important;">（portant; word-wrap: break-word !important;">SUS200portant; word-wrap: break-word !important;">）及析出硬化系（portant; word-wrap: break-word !important;">SUS600portant; word-wrap: break-word !important;">）。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">200 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">—portant; word-wrap: break-word !important;">铬portant; word-wrap: break-word !important;">-portant; word-wrap: break-word !important;">镍portant; word-wrap: break-word !important;">-portant; word-wrap: break-word !important;">锰 奥氏体不锈钢
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">300 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">—portant; word-wrap: break-word !important;">铬portant; word-wrap: break-word !important;">-portant; word-wrap: break-word !important;">镍 奥氏体不锈钢
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">301—portant; word-wrap: break-word !important;">延展性好，用于成型产品。也可通过机 速硬化。焊接性好。抗磨性和疲劳强度优于portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">不锈钢。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">302—portant; word-wrap: break-word !important;">耐腐蚀性同portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">，由于含碳相对要高因而强度更好。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">303—portant; word-wrap: break-word !important;">通过添加少量的硫、磷使其较削加工。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">304— portant; word-wrap: break-word !important;">即portant; word-wrap: break-word !important;">18/8portant; word-wrap: break-word !important;">不锈钢。portant; word-wrap: break-word !important;">GBportant; word-wrap: break-word !important;">牌号为portant; word-wrap: break-word !important;">0Cr18Ni9portant; word-wrap: break-word !important;">。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">309—portant; word-wrap: break-word !important;">较之portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">有更好的耐温性。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">316—portant; word-wrap: break-word !important;">继portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">之後，第二个得到最广泛应用的钢种，主要用于食品工业和外科手术器材，添加钼元素使其获得一种抗腐蚀的特殊结构。由于较之portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">其具有更好的抗氯化物腐蚀能力因而也作portant; word-wrap: break-word !important;">“portant; word-wrap: break-word !important;">船用钢portant; word-wrap: break-word !important;">”portant; word-wrap: break-word !important;">来使用。portant; word-wrap: break-word !important;">SS316portant; word-wrap: break-word !important;">则通常用于核燃料回收装置。portant; word-wrap: break-word !important;">18/10portant; word-wrap: break-word !important;">级不锈钢通常也符合这个应用级别。portant; word-wrap: break-word !important;">[1]
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">型号portant; word-wrap: break-word !important;"> 321—portant; word-wrap: break-word !important;">除了因为添加了钛元素降低了材料焊缝锈蚀的风险之外其他性能类似portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">400 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">—portant; word-wrap: break-word !important;">铁素体和马氏体不锈钢
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">408—portant; word-wrap: break-word !important;">耐热性好，弱抗腐蚀性，portant; word-wrap: break-word !important;">11%portant; word-wrap: break-word !important;">的portant; word-wrap: break-word !important;">Crportant; word-wrap: break-word !important;">，portant; word-wrap: break-word !important;">8%portant; word-wrap: break-word !important;">的portant; word-wrap: break-word !important;">Niportant; word-wrap: break-word !important;">。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">409—portant; word-wrap: break-word !important;">最廉价的型号（英美），通常用作汽车排气管，属铁素体不锈钢（铬钢）。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">410—portant; word-wrap: break-word !important;">马氏体（高强度铬钢），耐磨性好，抗腐蚀性较差。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">416—portant; word-wrap: break-word !important;">添加了硫改善了材料的加工性能。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">420—“portant; word-wrap: break-word !important;">刃具级portant; word-wrap: break-word !important;">”portant; word-wrap: break-word !important;">马氏体钢，类似布氏高铬钢这种最早的不锈钢。也用于外科手术刀具，可以做的非常光亮。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">430—portant; word-wrap: break-word !important;">铁素体不锈钢，装饰用，例如用于汽车饰品。良好的成型性，但耐温性和抗腐蚀性要差。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">440—portant; word-wrap: break-word !important;">高强度刃具钢，含碳稍高，经过适当的热处理後可以获得较高屈服强度，硬度可以达到portant; word-wrap: break-word !important;">58HRCportant; word-wrap: break-word !important;">，属于最硬的不锈钢之列。最常见的应用例子就是portant; word-wrap: break-word !important;">“portant; word-wrap: break-word !important;">剃须刀片portant; word-wrap: break-word !important;">”portant; word-wrap: break-word !important;">。常用型号有 三种：portant; word-wrap: break-word !important;">440Aportant; word-wrap: break-word !important;">、portant; word-wrap: break-word !important;">440Bportant; word-wrap: break-word !important;">、portant; word-wrap: break-word !important;">440Cportant; word-wrap: break-word !important;">，另外还有portant; word-wrap: break-word !important;">440Fportant; word-wrap: break-word !important;">（易加工型）。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">500 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">—portant; word-wrap: break-word !important;">耐热铬合金钢。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">600 portant; word-wrap: break-word !important;">系列portant; word-wrap: break-word !important;">—portant; word-wrap: break-word !important;">马氏体沉淀硬化不锈钢。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">630—portant; word-wrap: break-word !important;">最常用的沉淀硬化不锈钢型号，通常也叫portant; word-wrap: break-word !important;">17-4portant; word-wrap: break-word !important;">；portant; word-wrap: break-word !important;">17%Crportant; word-wrap: break-word !important;">，portant; word-wrap: break-word !important;">4%Nportant; word-wrap: break-word !important;">
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