Stainless Steel Pipe-Encyclopedia

304 and 316L stainless steel materials are the only health materials that can be implanted into human body, so for water supply pipes, stainless steel pipes are the most beneficial to health. In the immersion water test, all the indicators meet the requirements of the relevant national drinking water standards. Stainless steel pipeline has smooth inner wall, no fouling, no bacterial contamination, anti-bacterial, anti-seismic, anti-tension, high pressure and high temperature resistance, no need to worry about water quality, and can prevent secondary pollution of water.Thin wall stainless steel water supply pipe is recognized as one of the best pipes with comprehensive properties

Stainless Steel Pipe-Encyclopedia

Wide application of stainless steel pipe

304, 316 L thin-walled stainless steel water pipes and pipe fittings series products are widely used in star hotels, medical and health, fire protection, housing, water, food, beverage, schools, airports, subways, high-speed rail, industry, education, ships, industrial desalination projects, drinking water, direct drinking water, cold and hot water, gas and other system fields of large and medium-sized construction projects, and the product sales network has been widely spread It has been exported to Europe, Southeast Asia and other countries and regions, and has established partnerships with many enterprises around the world, with a very broad prospect.

Wide application of stainless steel pipe

不锈钢材质分类基础知识

2019/7/5 16:44:45

只要钢种选择的正确,保养合适,不锈钢不会产生腐蚀、点蚀、锈蚀或磨损。不锈钢还是建筑用金属材料中强度最高的材料之一。由于不锈钢具有良好的耐腐蚀性,所以它能使结构部件永久地保持工程设计的完整性。含铬不锈钢还集机械强度和高延伸性于一身,易于部件的加工制造,可满足建筑师和结构设计人员的需要。

不锈钢牌号分组

200系列—铬-镍-锰奥氏体不锈钢

300系列—铬-镍奥氏体不锈钢

型号301—延展性好,用于成型产品。也可通过机械加工使其迅速硬化。焊接性好。抗磨性和疲劳强度优于304不锈钢。

型号302—耐腐蚀性同304,由于含碳相对要高因而强度更好。

型号303—通过添加少量的硫、磷使其较304更易切削加工。

型号304—通用型号;即18/8不锈钢。GB牌号为0Cr18Ni9。

型号309—较之304有更好的耐温性。

型号316—继304之后,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304其具有更好的抗氯化物腐蚀能力因而也作“船用钢”来使用。SS316则通常用于核燃料回收装置。18/10级不锈钢通常也符合这个应用级别。

型号321—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304。不锈钢装饰管,201不锈钢管,304不锈钢管

400系列—铁素体和马氏体不锈钢

型号408—耐热性好,弱抗腐蚀性,11%的Cr,8%的Ni。

型号409—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)。

型号410—马氏体(高强度铬钢),耐磨性好,抗腐蚀性较差。

型号416—添加了硫改善了材料的加工性能。

型号420—“刃具级”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。

型号430—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。

型号440—高强度刃具钢,含碳稍高,经过适当的热处理后可以获得较高屈服强度,硬度可以达到58HRC,属于最硬的不锈钢之列。最常见的应用例子就是“剃须刀片”。常用型号有三种:440A、440B、440C,另外还有440F(易加工型)。

500系列—耐热铬合金钢。


600系列—马氏体沉淀硬化不锈钢。

型号630—最常用的沉淀硬化不锈钢型号,通常也叫17-4;17%Cr,4%Ni。