GB/T 38063-2019 in English
VALIDMagnesium-lithium alloy sheets for aerospace
- Issued on:2019-10-18
- Implemented on:2020-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 38063-2019航空航天用镁锂合金板材》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
Analysis of the core content of the standard
This standard specifies the application requirements of magnesium-lithium alloy plates such as LA103Z and LZ91M in the aerospace field, focusing on controlling the key ratio range of lithium content 5.5-12% to ensure the ultra-light characteristics of the material density <1.6g/cm³.
Comparison of key technical indicators
| Grade | State | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) |
|---|---|---|---|---|
| LA103Z | H112 | ≥140 | ≥120 | 15 |
| LZ91M | ≥135 | ≥100 | 30 |
Key points of quality control
Take LA43M plate as an example, its ultrasonic flaw detection needs to meet the following requirements: single defect equivalent diameter ≤3.2mm, multiple defect spacing ≥25mm. In the production of a satellite structure, the surface unevenness is controlled within 5mm/m through the 400-grit sandpaper grinding process.
Recommendations for the implementation of the standard
- Preferably use H112 state plates for load-bearing structural parts
- For plates with a thickness of ＞4mm, it is recommended to retain the rolled black skin
- Establish a melt traceability management system
Technology evolution analysis
Compared with the 2009 version of the industry standard, this standard adds:
- LA103ZHigh cycle fatigue performance requirements
- Dimensional tolerance band for extra thick plates of 20-40mm
- ICP-AES lithium content detection method
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 5154-2022 in English
Magnesium and magnesium alloys sheets and strips
2022-03-09
