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钢管材中不锈钢方管与不锈铁方管有区别吗?

来源:http://www.jnxxjm.com

【 发布于:2019-07-10 17:42:26 】


钢管材按制管材质(即钢种)可分为:碳素管和合金管、不锈钢管等。碳素管又可分为普通碳素钢管和优质碳素构造管。合金管又可分为:低合金管、合金构造管、高合金管、高强度管。轴承管、耐热耐酸不锈管、精细合金(如可伐合金)管以及高温合金管等。

Steel pipes can be divided into carbon pipes and alloy pipes, stainless steel pipes and so on. Carbon pipes can also be divided into ordinary carbon pipes and high-quality carbon construction pipes. Alloy pipes can be divided into low alloy pipes, alloy construction pipes, high alloy pipes, high strength pipes. Bearing pipes, heat and acid resistant stainless pipes, fine alloy (such as Kovar alloy) pipes and superalloy pipes, etc.

钢管材中 不锈钢方管普通是不锈钢方管和耐酸钢的总称。不锈钢方管是指耐大气、蒸汽和水等弱介质腐蚀的钢,而耐酸钢则是指耐酸、碱、盐等化学浸蚀性介质腐蚀的钢。

Stainless steel square pipes in steel pipes are generally referred to as stainless steel square pipes and acid-resistant steel. Stainless steel square pipe refers to the steel which is resistant to the corrosion of weak medium such as atmosphere, steam and water, while acid-resistant steel refers to the steel which is resistant to the corrosion of chemical etching medium such as acid, alkali and salt.

不锈方管 自本世纪初问世,到如今已有90多年的历史。不锈钢方管的创造是世界冶金史上的严重成就,不锈钢方管的开展为现代工业的开展和科技进步奠定了重要的物质技术根底。不锈钢方管钢种很多,性能各异,它在开展过程中逐渐构成了几大类。

The stainless square tube has a history of more than 90 years since its appearance at the beginning of this century. The creation of stainless steel square pipes is a serious achievement in the world metallurgical history. The development of stainless steel square pipes has laid an important material and technological foundation for the development of modern industry and scientific and technological progress. There are many kinds of stainless steel square pipes with different properties, which gradually constitute several categories in the process of development.

按组织构造分,分为马氏不锈钢方管(包括沉淀硬化不锈钢方管)、铁素体不锈钢方管、奥氏体不锈钢方管和奥氏体加铁素体双相不锈钢方管等四大类;按钢中的主要化学成分或钢中的一些特征元从来分类,分为铬不锈钢方管、铬镍不锈钢方管、铬镍钼不锈钢方管以及低碳不锈钢方管、高钼不锈钢方管、高纯不锈钢方管等;按钢的性能特性和用处分类,分为耐硝酸不锈钢方管、耐硫酸不锈钢方管、耐点蚀不锈钢方管、耐应力腐蚀不锈钢方管、高强不锈钢方管等;按钢的功用特性分类,分为低温不锈钢方管、无磁不锈钢方管、易切削不锈钢方管、超塑性不锈钢方管等。目前常用的分类办法是按钢的组织构造特性和钢的化学成分特性以及两者相分离的办法分类。普通分为马氏体不锈钢方管、铁素体不锈钢方管、奥氏体不锈钢方管、双相不锈钢方管和沉淀硬化型不锈钢方管等,或分为铬不锈钢方管和镍不锈钢方管两大类。

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According to the structure, it can be divided into four categories: martensitic stainless steel square pipe (including precipitation hardening stainless steel square pipe), ferritic stainless steel square pipe, austenitic stainless steel square pipe and austenitic and ferritic duplex stainless steel square pipe; chromium stainless steel square pipe can be divided into chromium stainless steel square pipe according to the main chemical composition of steel or some characteristic elements of steel. The stainless steel square pipes are chromium-nickel stainless steel square pipes, chromium-nickel-molybdenum stainless steel square pipes, low-carbon stainless steel square pipes, High-Molybdenum stainless steel square pipes and high-purity stainless steel square pipes. According to the performance characteristics and use of steel, the steel can be divided into nitric acid-resistant stainless steel square pipes, sulfuric acid-resistant stainless steel square pi Stainless steel square pipe, etc. According to the functional characteristics of steel, it can be divided into low-temperature stainless steel square pipe, non-magnetic stainless steel square pipe, free-cutting stainless steel square pipe, superplastic stainless steel square pipe, etc. At present, the commonly used classification methods are classified according to the structure characteristics of steel, the chemical composition characteristics of steel and the separation of the two methods. Generally, it can be divided into martensitic stainless steel square pipe, ferritic stainless steel square pipe, austenitic stainless steel square pipe, duplex stainless steel square pipe and precipitation hardening stainless steel square pipe, or chromium stainless steel square pipe and nickel stainless steel square pipe.

钢管材产品的钢种与种类规格极为繁多,其性能请求也是各种各样的。一切这些应随着用户请求或工作条件的变化而加以辨别。通常,钢管产品按断面外形、消费办法、制管材质、联接方式、镀涂特征与用处等停止分类。

Steel grades and specifications of steel pipe products are extremely diverse, and their performance requirements are also various. All these should be distinguished according to the user's request or the change of working conditions. Generally, steel pipe products are classified according to section shape, consumption method, pipe material, connection mode, plating characteristics and use.

不锈铁是含铬而不含镍的,也称为Cr不锈钢,就有一定的防腐蚀才能!不锈铁不是俗语,浅显以为具有铁磁性的不锈钢,主要指1Cr17(铁素体)系列、1Cr13(马氏体)系列,而Fe以奥氏体形不锈铁板材式存在时不具铁磁性。文中以Ni/Cr辨别容易误解,固然它们招致了Fe的同素异构。但Fe、Ni为铁磁,Cr为顺磁性。高性能软磁资料1J系列很多是Ni基。

Stainless iron is chromium-free and nickel-free, also known as Cr stainless steel, which has certain anti-corrosion ability. Stainless iron is not a colloquial saying. It is superficially thought that stainless steel with ferromagnetism mainly refers to 1Cr17 (ferrite) series and 1Cr13 (martensite) series, while Fe does not have ferromagnetism when it exists as austenitic stainless steel sheet. It is easy to be misunderstood to distinguish Ni/Cr in this paper, although they cause isomerism of Fe. But Fe and Ni are ferromagnetic and Cr is paramagnetic. Many of the 1J series of high performance soft magnetic data are Ni-based.

不锈铁与不锈钢相比主要是在于能否含镍!不锈铁普通是指日本的SUS430,国内为1Cr17,主要化学成分为:C:<0.12,Si:<0.75,Mn<1.00,P:<0.035,S<0.030,Ni:<0.60,Cr:16.00-18.00为铁素体不锈钢。

Compared with stainless steel, stainless steel mainly depends on whether it contains nickel. Stainless iron generally refers to S US430 in Japan and 1Cr17 in China. Its main chemical composition is C:<0.12, Si:<0.75, Mn<1.00, P:<0.035, S<0.030, Ni:<0.60, and Cr:16.00-18.00 as ferritic stainless steel.

而不锈钢是既含铬又含镍的,由于镍属于较稳定元素,那么它的抗腐蚀才能自然要比不锈铁强很多!

Stainless steel contains both chromium and nickel. Because nickel is a stable element, its corrosion resistance is naturally much stronger than that of stainless steel.

由于镍的价钱较贵,所以从本钱上不锈钢要高于不锈铁,再加上抗腐蚀才能的差别,不锈钢价钱比不锈铁高出1/4~1/3

Because of the high price of nickel, the cost of stainless steel is higher than that of stainless steel, and the difference of corrosion resistance makes the price of stainless steel 1/4-1/3 higher than that of stainless steel.



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