2091 Aluminum Sheet

Aluminum sheet is aluminum material with thickness greater than 0.2mm to less than 500mm, width greater than 200mm and length less than 16m, called aluminum plate or aluminum sheet. Aluminum plate is a rectangular plate rolled from aluminum ingot, which is divided into pure aluminum plate, alloy aluminum plate, thin aluminum plate, medium-thick aluminum plate and patterned aluminum plate.
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2091 Aluminum Sheet/Plate Manufacturer 

2091 is a medium strength aluminum alloy with 8% lower density and 7% higher modulus of elasticity than 2024-T3. 2219 aluminum alloy series was developed to improve the high temperature performance of 2000 series aluminum alloys, which has low thermal cracking tendency and good welding performance. 2091 aluminum alloy has slightly higher thermoplasticity than 2219 aluminum alloy and higher sensitivity to thermal cracking, which is the disadvantage of 2091 aluminum alloy. disadvantage.

The ductility of 2091 steel recovers slowly during cooling and does not fully recover after heating to zero strength temperature. 2091 aluminum alloy has little difference in axial and lateral thermal ductility. The zero ductility temperature is 540 °C, and the temperature changes from grain-piercing fracture to epitaxial fracture.

The reason for the loss of ductility of 2091 aluminum alloy is the aggregation of T2 phase at grain boundaries, leading to unbalanced eutectic melting and resulting in grain boundary liquefaction. During cooling, the T2 phase does not recover completely, leaving voids. The high temperature thermal cracking susceptibility of 2091-T3 is better measured by using NST as the peak temperature of thermal cycling.

The 2091 aluminum alloy is a damage tolerant alloy with a density 8% lower than 2024-T3 and a modulus 1% higher than 2024-T3. 2024-T3 is a major high toughness damage tolerant alloy used in most aircraft structures today. 2091 aluminum alloy is also suitable for secondary structures where high strength is not critical.

2091 Aluminum Plate Details

Product 2091 Aluminum Sheet Plate


Grade 1000series:1050/1060/1070/1080/1100/1350/1050A/1090/1200/1530
Thickness 1.5-400mm
Width 100-2200mm
Length 500-10000mm
Service Perforated, Cutting special size, Doing flatness,  Surface treatment,etc
Executive Standard GB/DIN/ANSI/BS/JIS/ASTM/BS
Certificate SGS/BV/MTC/IOS/CE
Delivery time 7-15 days after deposit
Packaging  Details Standard export package
One 20GP container can load about 18-20 tons  Aluminium Sheet
One 40GP container can load about 24 tons  Aluminium Sheet

2091 aluminum sheet chemical composition

Element Value
Aluminum 91.9 - 95.4%
Chromium <=  0.10%
Copper 1.8 - 2.5%
Iron <=  0.30%
Lithium 1.7 - 2.3%
Magnesium 1.1 - 1.9%
Manganese <=  0.10%
Other,  each <=  0.05%
Other,  total <=  0.15%
Silicon <=  0.20%
Titanium <=  0.10%
Zinc <=  0.25%
Zirconium 0.04 -  0.16%

2091 aluminum sheet mechanical properties

Properties Value
Density 2.58 g/cc
Tensile  Strength, Ultimate 430 MPa
Tensile  Strength, Yield 330 MPa
Elongation  at Break 18 %
Modulus  of Elasticity 75.0 GPa
CTE, linear 23.9 µm/m-°C
@Temperature  20.0 - 100 °C
Specific Heat Capacity 0.860  J/g-°C
at  Temperature 100 °C
Thermal  Conductivity 84.0 W/m-K
Melting  Point 560 -  670 °C
Solidus 560 °C
Liquidus 670 °C

Aluminum Sheet/Plate Workshop

Aluminum Sheet

Our Service/Why Choose Us

(1)Fast delivery time, good quality and reasonable price

(2) We can process different finished products according to your requirements

(3) High production capacity will shorten your waiting time

(4) Accepting buyer's specification

(5) Experienced R&D department

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