Progress in High-Strength Aluminum Alloy Tank Plates

Product name:	Progress in High-Strength Aluminum Alloy Tank Plates
Keywords:	Progress in High-Strength Aluminum Alloy Tank Plates
Industry:	Petroleum, natural gas and chemical industry - Petroleum and natural gas industry
Process:	Sheet metal - Bending
Material:	Aluminum

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Breakthroughs in Material Properties of High-Strength Aluminum Alloy Tank Plates:
In 2025, CRRC Research Institute developed a 3D-printed aluminum alloy achieving a strength of 600MPa and an elongation of over 10%, resolving anisotropy issues through a bimodal grain design. A new Al-Zn-Mg-Cu alloy system, utilizing micro-alloying (0.1-0.3% Sc/Zr), achieved a strength exceeding 800MPa and improved fracture toughness by 15%.

Innovative Process Applications:
Southwest Aluminum has achieved industrial production of 7050 aluminum alloy thick plates, accounting for 50% of the domestic large aircraft C919. Melt casting homogenization technology controls dendritic segregation within 5μm, and multi-stage aging processes improve the stress corrosion resistance of tank plates by 20%.

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