| 标准： | ASME SB163， SB167， SB829 | 年级 | INCONEL ALLOY 690 ，UNS N06690 ，W. Nr. 2.4642) |
|---|---|---|---|
| 尺寸 | 直径：3 毫米至 530 毫米，重量：0.2 毫米至 60 毫米，长度：最长 50 米 | 包装 | 胶合木箱或铁箱 |
| 强光 | 镍合金管， 哈氏合金 C 卡套管 | ||
DIN 2.4642 Alloy Seamless Tube Inconel 690™ ASME SB163 / SB167 / SB829
Super alloys have good creep and oxidation resistance. They are also known as high performance alloys， and can be formed in different shapes. Work hardening， precipitation hardening， and solid-solution hardening are performed for strengthening the super alloys. These alloys have the capcity to function at very high temperatures and severe mechanical stress， and also where high surface stability is required.
Inconel 690™ is a nickel-chromium alloy. It has high resistance to hot gases or oxidizing chemicals due to the presence of high chromium content. The following datasheet gives an overview of Inconel 690™.
化学成分
The chemical composition of Inconel 690™ is outlined in the following table.
| 要素 | 内容 (%) |
|---|---|
| 铬，Cr | 27-31 |
| 铁，Fe | 7-11 |
| 硅，Si | 最大 0.5 |
| 锰，Mn | 最大 0.5 |
| 铜，Cu | 最大 0.5 |
| 硅，Si | 最大 0.5 |
| 碳，C | 0.05 最大值 |
| 硫，S | 0.015 最大值 |
| 镍，Ni | 剩余 |
物理特性
The physical properties of Inconel 690 ™ are given in the following table.
| 属性 | 公制 | 帝国 |
|---|---|---|
| 密度 | 8.19 g/cm³ | 0.296 lb/in³ |
| 熔点 | 1343-1377°C | 2450-2510°F |
机械性能
The mechanical properties of Inconel 690™ are displayed in the following table.
| 属性 | 公制 | 帝国 |
|---|---|---|
| 泊松比 | 0.29 | 0.29 |
| 硬度 | 85 | 85 |
热性能
The following table shows the thermal properties of Inconel 690™.
| 属性 | 公制 | 帝国 |
|---|---|---|
| 导热性 | 12.1 W/mK | 84 BTU in/hr.ft².°F |
其他称号
Other designations that are equivalent to Inconel 690™ include:
- ASTM B167 / SB163 / SB829
- DIN 2.4642
Fabrication and Heat Treatment
机械加工性能
Inconel 690™ can be machined using conventional machining methods which are used for iron-based alloys. Machining operations are performed using commercial coolants. High-speed operations such as grinding， milling or turning， are performed using water-base coolants.
Forming
Inconel 690™ can be formed using all conventional techniques.
焊接
Inconel 690™ is welded using gas-tungsten arc welding， shielded metal-arc welding， gas metal-arc welding， and submerged-arc welding methods.
热处理
Inconel 690™ does not react to heat treatment.
锻造
Inconel 690™ is forged at 1038 to 1233°C (1900 to 2250°F).
热工作
Inconel 690™ is hot worked at 872 to 1205°C (1600 to 2200°F).
冷加工
Inconel 690™ is cold worked using standard tooling.
退火
Inconel 690™ is annealed at 1038°C (1900°F) followed by cooling.
Aging
Inconel 690™ does not react to aging thermal treatment.
Hardening
Inconel 690™ is hardened by cold working.
应用
Inconel 690™ is used in the following applications:
- Duct work
- High temperature burners
- 炉子
- Petrochemical heaters
