楼梯之家讯：portant; word-wrap: break-word !important;">SUSportant; word-wrap: break-word !important;">的含义：portant; word-wrap: break-word !important;">SUSportant; word-wrap: break-word !important;">是日本portant; word-wrap: break-word !important;">JISportant; word-wrap: break-word !important;">标准中不锈钢的代号portant; word-wrap: break-word !important;">。portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">日本标准在发布时均带有起草说明，在说明的附表中列述了钢号设置的演变过程及标准中所列钢号的特性及用途。日本的钢号中若是从美国引进的牌号，则在三位数字前加前缀“SUS”（steel use stainless），但与ASTM（美国材料与试验协会）差别的是若日本自己研制的钢号则后缀“J”表示Japan。如“SUS 316J1”，区别于“SUS 316”。
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portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SUS316portant; word-wrap: break-word !important;">不锈钢硬度能达到多少
portant; word-wrap: break-word !important;"> 304 portant; word-wrap: break-word !important;">在耐磨性能会差些，耐热也差些，磁性区别不到，加工后会有弱磁现象，但后期可技术消除。中厚板、薄板、带材的portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">经过处理硬度（portant; word-wrap: break-word !important;">HRBportant; word-wrap: break-word !important;">）portant; word-wrap: break-word !important;"><=95
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;"> 现在最常用的两种不锈钢portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">，portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">（或对应于德portant; word-wrap: break-word !important;">/portant; word-wrap: break-word !important;">欧标的portant; word-wrap: break-word !important;">1.4308,1.4408portant; word-wrap: break-word !important;">），portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">与portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">在化学成分上的最主要区别就是portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">含portant; word-wrap: break-word !important;">Moportant; word-wrap: break-word !important;">，而且一般公认，portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">的耐腐蚀性更好些，比portant; word-wrap: break-word !important;">304portant; word-wrap: break-word !important;">在高温环境下更耐腐蚀。所以在高温环境下，工程师一般都会选用portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">材料的零部件。但所谓事无绝对，在浓硫酸环境下，再高温度也千万别用portant; word-wrap: break-word !important;">316portant; word-wrap: break-word !important;">！不然这事可就出大了。学机械的人都学过螺纹，还记得为了防止在高温情况下螺纹咬死，需要涂抹的一种黑乎乎的固体润滑剂吧：二硫化钼（portant; word-wrap: break-word !important;">MoS2portant; word-wrap: break-word !important;">）portant; word-wrap: break-word !important;">,portant; word-wrap: break-word !important;">从它就得出了portant; word-wrap: break-word !important;">2portant; word-wrap: break-word !important;">点结论不是：portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">[1]Moportant; word-wrap: break-word !important;">确实是一种耐高温的物质。portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">[2]portant; word-wrap: break-word !important;">：钼很容易和高价硫离子反应生成硫化物。呵呵，所以没有任何一种不锈钢是超级无敌耐腐蚀的。说到底，不锈钢就是一块杂质（不过这些杂质可都比钢更耐腐蚀portant; word-wrap: break-word !important;">^^portant; word-wrap: break-word !important;">）较多的钢，是钢就可以和别的物质反应。portant; word-wrap: break-word !important;">
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SUS304/2B 2BBportant; word-wrap: break-word !important;">钢带 SUS是什么意思？2B，2BB又是什么意思portant; word-wrap: break-word !important;">？
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SUSportant; word-wrap: break-word !important;">是日本钢号的统称2B是指不锈钢表面的光洁度不过我还没有听说过有2BB的材料只有2B（亚光），BA（镜面）
400系列多以铁素体居多如1Cr13(410),2Cr13(420J1),1Cr17(430)也有部分马氏体的如3Cr13（420J2）它们是一种节镍的不锈钢，价格也比较实惠耐用性 。
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portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">日本钢材（JIS系列）的牌号中普通结构钢主要由三部分组成：
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">第一部分表示材质，如：S（Steel）表示钢，F（Ferrum）表示铁；
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">第二部分表示不同的形状、种类、用途，如P(Plate)表示板，T（Tube）表示管，K(Kogu)表示工具；第三部分表示特征数字，一般为最低抗拉强度。
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portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SS400——portant; word-wrap: break-word !important;">第一个S表示钢(Steel)，第二个S表示“结构”（Structure），400为下限抗拉强度400MPa，整体表示抗拉强度为400 MPa的普通结构钢。
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portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SS400portant; word-wrap: break-word !important;">基本上等同与我国的Q235.但在具体指标上有所差异,Q235的对C、Si、Mn、S、P等元素的含量均作了要求，但SS400只要求S、P小于0.050。Q235的屈服点大于235 MPa，而SS400屈服点为245MPa。SS400（steelfor general structure）的意思就是抗拉强度大于400MPa的一般结构用钢。Q235的意思为屈服点大于235MPa的普通碳素结构钢。SS400的标准号为JIS G3101－1995。Q235的标准号为GB／T700－1988。
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portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SUS304 JISportant; word-wrap: break-word !important;">内不锈钢
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">SUS304 JISportant; word-wrap: break-word !important;">内不锈钢中国0Cr19Ni9 日本SUS304 美国304
特性：具有良好的耐蚀性、耐热性、低温强度和机械性能，冲压弯曲等热加工性好，无热处理硬化现象，无磁性。
用途：家庭用品、橱柜、室内管线、热水器、锅炉、浴缸、汽车配件、医疗器具、建材、化学、食品工业、农业、船舶部件。
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