no8904（904l,14539）超级奥氏体不锈钢中含14.0-18.0%铬， 24.0-26.0%镍，4.5%钼。904l超级奥氏体不锈钢属低碳高镍、钼奥氏体不锈耐酸钢具有很好的活化—钝化转变能力，耐腐蚀性能极好，在非氧化性酸如硫酸、醋酸、甲酸、磷酸中具有很好的耐蚀性，在中性含氯离子介质中具有很好的抗点蚀性，同时具有良好的抗缝隙腐蚀及抗应力腐蚀性能。适用于70℃以下各种浓度硫酸，在常压下耐任何浓度、任何温度的醋酸，及甲酸与醋酸的混酸中的耐腐蚀性也很好。
no8904是完全奥氏体组织，舆一般含钼量高的奥氏体不锈钢相比，904l对铁素体和α相的析出不敏感。
no8904主要成分：
碳(c)≤0.02,
锰(mn)≤2.00,
镍(ni)23.0～28.0,
硅(si)≤1.0
磷(p)≤0.045,
硫(s)≤0.035,
铬(cr)19.0～23.0,
铜(cu)1.0～2.0,
钼(mo)4.0～5.0
no8904应用领域：
石油、石化设备，如石化设备中的反应器等，硫酸的储存与运输设备，如热交换器等，发电厂烟气脱硫装置，主要使用部位有：吸收塔的塔体、烟道、档门板、内件、喷淋系统等，有机酸处理系统中的洗涤器和风扇，海水处理装置，海水热交换器，造纸工业设备，硫酸设备，制酸、制药工业及其他化工设备、压力容器，食品设备，制药厂:离心机，反应器等，植物食品：酱油罐，料酒，盐罐，设备和敷料，对稀硫酸强腐蚀介质904l是匹配的钢种。
产品英文详情介绍
no8904 no8904 alloy steel quality product manufacturers offer no8904 (904l, 14539) super austenitic stainless steel containing 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum. super austenitic stainless steel 904l metal carbon high nickel, molybdenum austenitic stainless acid-resistant steel having excellent active - passive transition ability, excellent corrosion resistance, in a non-oxidizing acid such as sulfuric acid, acetic acid, formic acid, phosphoric having good corrosion resistance, has good pitting resistance in a neutral chloride-containing medium, while having good resistance to crevice corrosion and stress corrosion resistance. it applies to various concentrations of sulfuric acid below 70 鈩resistance, any concentration at atmospheric pressure, any temperature of acetic acid, formic acid and acetic acid and mixed in a good corrosion resistance. no8904 fully austenitic structure, yu typically contain high molybdenum austenitic stainless steel as compared to the amount of precipitation of ferrite and 904l 伪 phase insensitive. no8904 main components: carbon (c) 鈮.02, manganese (mn) 鈮.00, a nickel (ni) 23.0 ~ 28.0, silicon (si) 鈮.0 phosphorus (p) 鈮.045, sulfur (s) 鈮.035, chromium (cr) 19.0 to 23.0, a copper (cu) 1.0 ~ 2.0, molybdenum (mo) 4.0 ~ 5.0no8904 application: petroleum, petrochemical equipment, such as petrochemical plants and the like in a reactor, sulfuric acid storage and transportation equipment such as heat exchangers, power plant flue gas desulfurization apparatus, the main parts: the absorption tower, flue, stopping plate, the inner member, sprinkler systems, etc., organic acids processing system and a fan scrubber, water treatment apparatus, the heat exchange water , a paper industry equipment, sulfuric acid plant, acid, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment, pharmaceutical: centrifuges, reactors, etc., plant foods: cans sauce, cooking wine, salt shaker device and dressings, dilute sulfuric acid is highly corrosive media matched steel 904l.
锢铄（上海）金属材料有限公司
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