| 产品名称 | Nickel Alloy Steel Pipe | 标准： | ASTM B407 |
|---|---|---|---|
| 同等学历： | Incoloy 800HT/UNS N08811/Alloy 800HT/1.4959 | 类型 | 无缝/焊接 |
| 无损检测： | Hydrostatic Test/Ultrasonic Test/PT | 测试标准： | AE213/B829/E112/A999 |
| 强光 | Seamless Nickel Alloy Tube， Incoloy 800HT， UNS NO8811 | ||
ASTM B407 INCOLOY 800HT / UNS NO8811 NICKEL ALLOY
Incoloy 800HT， also known as “Alloy 800HT”， is designated as UNS N08811 or DIN W.Nr. 1.4959. It is an iron-nickel-chromium alloy having the same basic composition as Incoloy 800 and Incoloy 800H but with significantly higher creep-rupture strength. The higher strength results from deliberate control of the carbon， aluminum， and titanium contents in conjunction with a high-temperature anneal. Used in chemical and petroleum processing， in power plants for superheater and reheater tubing， in industrial furnaces， and for heat treating equipment.
Incoloy 800HT is primarily used in applications with temperatures up to 1100° F， where alloys 800H and 800HT are normally used in temperatures above 1100° F where resistance to creep and rupture is required. The chemical balance allows the nickel steel alloy to exhibit excellent resistance to carburization， oxidation and nitriding atmospheres. Incoloy 800HT will not become embrittled even after long periods of usage in the 1200-1600° F range where many stainless steels become brittle. Excellent cold forming characteristics typically associated with the nickel-chromium alloys are exhibited with 800HT. When cold formed extensively the grain size produces a visibly undulated surface called “orange peel”. Incoloy 800HT can be welded by the common techniques used on stainless steels.
化学成分
镍 | 30.0-35.0 |
铬 | 19.0-23.0 |
铁 | ≥39.5 |
碳 | 0.06-0.10 |
铝质 | 0.25-0.60 |
钛 | 0.25-0.60 |
锰 | ≤1.50 |
硅 | ≤1.00 |
硫磺 | ≤0.015 |
铜 | ≤0.75 |
Al+Ti | 0.85-1.20 |
机械性能
拉伸强度，最小值 | 屈服强度，最小值 | Elongation， min. | Hardness， min. | ||
|---|---|---|---|---|---|
Mpa | ksi | Mpa | ksi | % | HB |
600 | 87 | 295 | 43 | 44 | 138 |
物理特性
密度 | 熔化范围 | 比热 | 电阻率 | ||
|---|---|---|---|---|---|
克/立方厘米 | °C | °F | J/kg. k | Btu/lb.°F | µΩ·m |
7.94 | 1357-1385 | 2475-2525 | 460 | 0.110 | 989 |
应用
硫酸管道和容器
磷酸蒸发器
酸洗槽加热器，酸洗槽和设备
化学工艺设备
推进器轴
油罐车
加热器
静电除尘器电极
装食物、水和海水的热容器
硫酸铵容器
膨胀风箱
船用排气系统
电站灰斗
工业炉
热处理设备
化学和石化加工
发电厂的过热器和再热器
压力容器
热交换器
