您在选择不锈钢电梯门套线时是否考虑过美观与安全并重？

　　Have you considered both aesthetics and safety when choosing stainless steel elevator door frame lines?

　　您在选择不锈钢电梯门套线时是否考虑过美观与安全并重？

　　Have you considered both aesthetics and safety when choosing stainless steel elevator door frame lines?

　　不锈钢电梯门套以其卓越的防水、耐腐蚀性能，确保了门套在潮湿环境中也能保持长久耐用材质环保无害，可循环利用，符合现代绿色建筑的理念表面光滑，不易沾染污渍，日常保养简便，只需清水擦拭即可保持光洁如新，降低了维护成本。

　　Stainless steel elevator door frames, with their excellent waterproof and corrosion-resistant properties, ensure long-lasting durability even in humid environments. The material is environmentally friendly, harmless, and recyclable, in line with the concept of modern green buildings. The surface is smooth and not easily stained, and daily maintenance is simple. Simply wipe it with clean water to keep it as smooth as new, reducing maintenance costs.

　　是否担心选错材质影响视觉效果或留下安全隐患？

　　Are you worried that choosing the wrong material may affect the visual effect or leave safety hazards?

　　一、 不锈钢是什么钢？

　　1、 What is stainless steel?

　　不锈钢是钢的一个种类，钢是指含有碳（C）量在2%以下的称之为钢，大于2%是铁。钢在冶炼过程中加入铬（Cr）、镍（Ni）、锰（Mn）、硅（Si）、钛（Ti）、钼（Mo）等合金元素改善了钢的性能使钢具有了耐腐性（即不上锈）就是我们常说的不锈钢。

　　Stainless steel is a type of steel, which refers to steel containing less than 2% carbon (C) and more than 2% iron. Adding alloying elements such as chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo), etc. during the smelting process improves the properties of steel and gives it corrosion resistance (i.e. no rust), which is commonly known as stainless steel.

　　二、为什么不锈钢有不同的钢号？

　　2、 Why are there different grades of stainless steel?

　　不锈钢通常被分为201、202、301、304、309s、310s、410、420、431等多种型号。其中，201、202、301、304、309s、310s属于奥氏体不锈钢，不含有磁性，可耐多种介质腐蚀。410、420、431则属于马氏体不锈钢，具有磁性、强度高，但塑性和可焊性较差。其中硫磷含量是一很重要指标，碳素结构钢和优质碳素结构钢就是根据它划分的：硫，磷含量皆不超过0.04％的钢，称为优质钢；硫含量不超过0.03％，磷含量不超过0.035％的钢称为高级优质钢；硫磷含量各不超过0.025％的钢称为特级质量钢。

　　Stainless steel is usually divided into various types such as 201, 202, 301, 304, 309s, 310s, 410, 420, 431, etc. Among them, 201, 202, 301, 304, 309s, and 310s belong to austenitic stainless steel, which does not contain magnetism and can withstand corrosion from various media. 410, 420, and 431 belong to martensitic stainless steel, which has magnetism and high strength, but poor plasticity and weldability. The sulfur and phosphorus content is an important indicator, and carbon structural steel and high-quality carbon structural steel are classified based on it: steel with sulfur and phosphorus content not exceeding 0.04% is called high-quality steel; Steel with sulfur content not exceeding 0.03% and phosphorus content not exceeding 0.035% is called high-grade high-quality steel; Steel with sulfur and phosphorus content not exceeding 0.025% is called premium quality steel.

　　常见不锈钢硫磷含量含量

　　Common sulfur and phosphorus content in stainless steel

　　不锈钢在冶炼过程当中，由于加入合金元素品种不同，不同品种加入量的不同。其特性也是不同的，为了加以区别则冠上了不同的钢号，下面是常见装饰用不锈钢不同钢号“合金元素”含量表仅供参考：200系列：铬-镍-锰奥氏体不锈钢300系列：铬-镍奥氏体不锈钢301：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304不锈钢。302：耐腐蚀性同304，由于含碳相对要高因而强度更好。302B：是一种含硅量较高的不锈钢，它具有较高的抗高温氧化性能。303：通过添加少量的硫、磷使其较削加工。303Se：也用于制作需要热镦的机件，因为在这类条件下，这种不锈钢具有良好的可热加工性。304：即18/8不锈钢。GB牌号为0Cr18Ni9。309：较之304有更好的耐温性。

　　During the smelting process of stainless steel, the amount of alloying elements added varies depending on the type of alloy element added. Their characteristics are also different, and in order to distinguish them, different steel grades are labeled. The following is a table of "alloy element" content for common decorative stainless steels of different steel grades for reference only: 200 series: chromium nickel manganese austenitic stainless steel 300 series: chromium nickel austenitic stainless steel 301: good ductility, used for forming products. It can also be hardened by machine speed. Good weldability. Wear resistance and fatigue strength are superior to 304 stainless steel. 302: Corrosion resistance is the same as 304, and its strength is better due to its relatively higher carbon content. 302B: It is a stainless steel with a high silicon content, which has high resistance to high temperature oxidation. 303: By adding a small amount of sulfur and phosphorus, it can be processed more efficiently. 303Se: It is also used to make parts that require hot forging, as this stainless steel has good hot workability under such conditions. 304: 18/8 stainless steel. The GB grade is 0Cr18Ni9. 309: Compared to 304, it has better temperature resistance.

　　304L：是碳含量较低的304不锈钢的变种，用于需要焊接的场合。较低的碳含量使得在靠近焊缝的热影响区中所析出的碳化物减至最少，而碳化物的析出可能导致不锈钢在某些环境中产生晶间腐蚀（焊接侵蚀）。304N：是一种含氮的不锈钢，加氮是为了提高钢的强度

　　304L: It is a variant of 304 stainless steel with lower carbon content, used for welding applications. The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, which may lead to intergranular corrosion (welding erosion) of stainless steel in certain environments. 304N: It is a nitrogen-containing stainless steel, and nitrogen is added to improve the strength of the steel

　　本文由 临沂不锈钢电梯门套   友情奉献.更多有关的知识请点击  http://www.sddtmt.com/   真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Linyi Stainless Steel Elevator Door Frame For more related knowledge, please click http://www.sddtmt.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.