收藏晋升泰|英文官网|网站地图|晋升泰简介HI,欢迎来到晋升泰精密(深圳)有限公司官方网站!

热门关键词:紧固件生产厂家紧固件定制紧固件紧固件紧固件

强大的客户服务实力
当前位置:首页 > 资讯·技术 > 紧固件资讯 »>>不锈钢螺丝 不同材质的特点

不同材质的不锈钢螺丝的特点分别是什么?

文章出处:人气:0发表时间:2017-09-12【 返回列表

 

众所周知,不锈钢螺丝的材质分类有奥氏体不锈钢、铁素体不锈钢、马氏体不锈钢、沉淀硬化不锈钢等。而不锈钢螺丝的选用也是有原则的,按照自己的需要选择合适自己使用的螺丝。那么,不锈钢螺丝的材质分类的具体特点有哪些?今天晋升泰来为您讲解:
不锈钢螺丝 晋升泰精密(深圳)有限公司.jpg
 
  一、奥氏体不锈钢:奥氏体不锈钢最基本的合金元素是铬和镍,代表性的牌号是含铬为18%左右、含镍为8%左右的铬一镍奥氏体不锈钢,常称为18 -8不锈钢。铬和镍的元素配比基本上保证了钢的组织是稳定的奥氏体铁素体型不锈钢:430型普通铬钢,它的耐腐蚀性能和耐热性能比410型好,有磁性,但它不能够热处理强化,适用于对而耐腐蚀和耐热性能稍高的、强度要求一般的不锈钢螺丝。Austenitic stainless steel: austenitic stainless steel The most basic alloying element is chromium and nickel, the representative grade is about 18% chromium, about 8% nickel chromium-nickel austenitic stainless steel, often referred to as 18 -8 stainless steel. The proportion of chromium and nickel is essentially a guarantee that the steel structure is stable. Austenitic ferritic stainless steel: 430 type chrome steel, its corrosion resistance and heat resistance are better than 410, magnetic, but it is Can not be heat treated to strengthen, apply to the corrosion resistance and heat resistance slightly higher, the strength requirements of the general stainless steel screws.
 
  二、沉淀硬化不锈钢:17-4PH,PH15-7Mo,它们可以得到比通常的18-8型不锈钢更高的强度,因而被用于高强度、耐腐蚀不锈钢不锈钢螺丝。A-286,一种非标准不锈钢,比常用的18-8型不锈钢有更高的耐腐蚀性能,以及在温度增高时仍具有良好的机械性能。用做高强度、耐热、耐腐蚀不锈钢螺丝,可使用到650~700℃。Precipitation hardened stainless steel: 17-4PH, PH15-7Mo, they can be higher than the usual 18-8 stainless steel strength, which is used for high strength, corrosion-resistant stainless steel stainless steel screws. A-286, a non-standard stainless steel, has a higher corrosion resistance than conventional 18-8 stainless steel and has good mechanical properties at elevated temperatures. For high strength, heat, corrosion-resistant stainless steel screws, can be used to 650 ~ 700 ℃.
 
  三、马氏体不锈钢:410型和416型可以热处理强化,硬度在35~45HRC,机加工性能良好,用于一般用途的耐热耐腐蚀不锈钢螺丝。416型含硫量稍高,是易切削不锈钢。420型,含硫量:0.15%,机械性能提高,可以热处理强化,最大硬度值53~58HRC,用于要求较高强度的不锈钢螺丝。Martensitic stainless steel: 410 and 416 type can be heat treatment to strengthen, hardness of 35 ~ 45HRC, machining performance is good for general use of heat-resistant corrosion-resistant stainless steel screws. 416 type slightly higher sulfur content, is easy to cut stainless steel. 420 type, sulfur content: 0.15%, improved mechanical properties, heat treatment can be enhanced, the maximum hardness of 53 ~ 58HRC, for the requirements of high strength stainless steel screws.
 
  四、奥氏体型不锈钢:常用的型号为302、303、304、305四个型号,即所谓的18-8型奥氏体不锈钢这四个型号。不论是抗腐蚀性,还是其机械性能都相类似。选用的出发点是不锈钢螺丝的生产工艺方法,而方法又取决于不锈钢螺丝的尺寸和形状,同时还取决于生产的数量。Austenitic stainless steel: commonly used models for the 302,303,304,305 four models, the so-called 18-8 austenitic stainless steel these four models. Whether it is corrosion resistance, or its mechanical properties are similar. The starting point is the production process of stainless steel screws, and the method depends on the size and shape of the stainless steel screws, but also on the number of production.
 
  1、302型用于采用机械加工的螺钉和自攻螺丝。Type 302 for use with machined screws and tapping screws.
 
  2、303型为了改善切削加工性能,303型不锈钢中添加有少量的硫,用于采用棒料加工螺母。303 In order to improve the cutting performance, 303 stainless steel added a small amount of sulfur, for the use of bar processing nuts.
 
  3、304型适用于采用热镦工艺加工不锈钢螺丝时,例如较长规格的螺栓,大直径的螺栓,它们均可能超出了冷镦工艺的范围。Type 304 is suitable for the use of hot forging process for the processing of stainless steel screws, such as longer specifications of bolts, large diameter bolts, which may exceed the scope of cold heading process.
 
  4、305型适用于采用冷镦工艺加工不锈钢螺丝时,例如冷成形螺母、六角螺栓。Type 305 is suitable for use with cold heading technology for the processing of stainless steel screws, such as cold forming nuts, hex bolts.
 
  5、309型和310型,它们的含Cr量和含Ni量都比18-8型不锈钢高,适用于高温下工作的不锈钢螺丝。309 and 310, their Cr content and Ni content are higher than the 18-8 stainless steel, suitable for high temperature work of stainless steel screws.
 
  6、316和317型,它们均含有合金元素Mo,因此它们的高温强度和耐蚀性能均比18-8型不锈钢高。Model 316 and Model 317, all of which contain alloying elements Mo, so their high temperature strength and corrosion resistance are higher than those of type 18-8 stainless steel.
 
  7、321型和347型,321型含有较稳定合金元素Ti,347型含有Nb,从而提高了材料的抗晶间腐蚀性能。适用于焊后不退火或在420~1013℃服役的不锈钢标准件。321 type and 347 type, 321 type contains more stable alloying elements Ti, 347 type containing Nb, thus improving the material resistance to intergranular corrosion. Applicable to non-annealing after welding or service in the 420 ~ 1013 ℃ stainless steel standard parts.
 
以上就是晋升泰为您带来的有关不锈钢螺丝的知识,希望对您有所帮助。

 

快捷通道/ PRODUCTS
非标紧固件
定位销 圆柱销 螺丝/螺栓 衬套 支柱 轴环 螺母 垫圈 浮动接头 小径弹簧柱塞
紧固件资讯
公司新闻 紧固件资讯 常见问题
关于晋升泰
公司环境 激情团队 荣誉证书 展会参展
晋升泰首页|非标定位销|非标圆柱销|非标轴套|常见问题|展会参展|荣誉证书|联系晋升泰|晋升泰简介
'); })();