
合金钢【NO7617】镍铬钴钼合金钢NO7617X焊条
(UNS NO7617) Incone description of 1617 alloy characteristics and application fields: the alloy such as sulfide in the field of hot corrosion environment, especially as high as 1100 ℃ circulating oxidation and carbonization environment has excellent corrosion resistance ability. The corrosion resistance and excellent mechanical properties, the alloy is particularly suited to high temperature areas. Under the high temperature up to 1100 ℃ has good transient and long-term mechanical properties. Application in the industry and steam turbine parts, air heater, muffle tank and the radiation, high temperature heat exchanger, valve and spring, high temperature gas cooled reactor, high temperature parts such as nuclear reactors - helium/helium medium heat exchanger, chemical equipment, the spiral tube and pipe in the petrochemical industry, etc.
应用于工业和汽轮机部件、空气加热器、马弗罐和辐射馆、高温热交换器、阀和弹簧、高温气体冷却核反应堆,如核反应堆高温部件-氦/氦介质热交换器、化工设备、石化工业中的螺旋管和管道等。
Incone l617化学成份:
合金 | % | 镍 | 铬 | 铁 | 钼 | 铌 | 钴 | 碳 | 锰 | 硅 | 硫 | 磷 P | 铝 | 钛 |
Inconel | X小 | 余量 | 20.0 | 8.0 | 10.0 | 0.05 | 0.6 | 0.2 | ||||||
X大 | 23.0 | 2.0 | 10.0 | 13.0 | 0.1 | 0.7 | 0.7 | 0.008 | 0.012 | 1.5 | 0.6 |
Inconel617金相组织结构:该合金为面心立方晶格结构,具有很好的晶相稳定性。通过固溶硬化具有了X秀的高温强度,合金没有时效硬化。
Inconel617工艺性能与要求:
1、合金合适的热加工温度为1200-950℃,冷却方式可以是水淬或其他快速冷却方式,材料须在加热炉达到X高炉温时入炉。
2、该合金的晶粒度平均尺寸与锻件的变形程度、终锻温度密切相关。
3、合金焊缝附近的氧化物要比不锈钢的更难以去除。机械或化学方法都可以采用,用机械方法时,要避免产生金属污染和高的表面变形。在硝酸和氢氟酸的混合酸中酸洗之前,也要用砂纸去除氧化物或进行盐浴预处理。
合金很适合于焊接,包括钨电极电弧焊(GTAW/TIG)、手工电弧焊(GMAW/MIG)、脉冲弧焊和保护气体弧焊。