GH4169合金概述 点击进入阿里巴巴店铺
GH4169是 Ni-Cr-Fe 基沉淀硬化型变形高温合金,长时使用温度范围-253℃~650℃,短时使用温度可达800℃。合金在650℃以下强度较高,具有良好的抗疲劳、抗辐射、抗氧化和耐腐蚀性能,以及良好的加工性能、焊接性能和长期组织稳定性。
GH4169应用概况
GH4169合金已用于制作航空发动机涡轮盘 、环件、机匣、轴、叶片、紧固件、弹性元件、燃气导管、密封元件和焊接结构件等;制作液氢、液氧火箭发动机中的涡轮转子等部件;制作核能工业应用的各种弹性元件和格架;制造石油和化工领域应用的多种零件。汉锴主要供应产品有热轧和锻制棒材、冷拉棒、板材和带材、丝材、管材、环形件和锻件等。
GH4169相近牌号
Inconel 718(美),NC19FeNb(法)。
GH4169材料技术标准
GH4169 化学成分
GH4169 化学成分 | ||||||||
元素 | C | Ni | Cr | Fe | Co | Mo | Nb | Al |
质量分数/% | ≤0.08 | 50.00-55.00 | 17.00-21.00 | 余量 | ≤1.00 | 2.80-3.30 | 4.75-5.50 | 0.20-0.80 |
元素 | Ti | Mg | B | Mn | Si | S | P | Cu |
质量分数/% | 0.65-1.15 | ≤0.010 | ≤0.006 | ≤0.35 | ≤0.35 | ≤0.015 | ≤0.015 | ≤0.30 |
物理性能及机械性能
GH4169 物理性能及机械性能 | ||||||||
密度 | 熔化温度范围 | 品种 | 热处理 | 抗拉强度 | 屈服强度 | 延伸率 | 硬度 | |
g/cm3 | ℃ | 棒材 锻件 |
标准热处理 | σb/MPa | σp0.2/MPa | σ5 /% | HBS | |
8.24 | 1260~1320 | ≥1270 | ≥1030 | ≥12 | 346 |
Characteristics
1.Good processing properties in the solution-annealed condition
2.Good mechanical short and long-term properties, and great fatigue strength in the age hardened condition
3.Good creep resistance up to 700 °C
4. Good oxidation resistance up to approx. 1,000°C
5.Excellent mechanical properties in low temperatures
Corrosion resistance
Based on the high chrome and molybdenum concentrations, GH4169 has a good resistance in many media against abrasive and local corrosion such as pitting. By virtue of its high nickel content, GH4169 also has good resistance against stress corrosion cracking.
Typical applications
1.Alloy has been used to make aero-engine turbine discs, rings, casings, shafts, blades, fasteners, elastic elements, gas conduits, sealing elements and welded structural parts;
2.Make turbine rotors and other components in liquid hydrogen and liquid oxygen rocket engines;
3.Make various elastic elements and grids for nuclear power industry applications;
4.Manufacture various parts used in petroleum and chemical industry.