3105 h14 aluminum sheet plate

3105-H14 aluminum refers to 3105 aluminum in the H14 temper, with strength generally falling between the annealed (O) condition and the full-hard (H18) condition.

3105 H14 aluminum alloy is an aluminum-manganese alloy. Its temper (H14) is achieved through a combination of strain hardening and partial annealing, providing a balance of strength and hardness while maintaining good workability.

3105 H14 is a 3000 series strain-hardened, non-heat-treatable aluminum alloy. It has been optimized to offer medium strength, excellent formability, and outstanding corrosion resistance. These properties make 3105-H14 particularly suitable for architectural facades, roofing, signage, and other applications that require painted or coated aluminum sheets.

3105 h14 aluminum sheet

Specification of 3105 h14 aluminum sheet

Alloy	3105 aluminum
Temper	H14
Thickness(mm)	0.1-600
Width(mm)	20-2650
Length(mm)	500-16000
Application	Liquor bottle caps, beverage bottle caps, cosmetic caps, coating rolls, etc.

Haomei 3105-H14 Aluminum Sheet and Coil – Common Supply Forms

The most common product forms of 3105 H14 are mainly sheets and coils.

Product Form	Typical Thickness Range	Surface Treatment	Typical Width
Flat Sheet	0.4mm - 4.0mm	Mill finish, matte, brushed, color coated	1000mm, 1220mm, 1500mm
Coil	0.2mm - 3.0mm	Polyester (PE) or Fluorocarbon (PVDF) coating	600mm - 2600mm
Aluminum Strip	0.1mm - 0.5mm	Lubricated (for stamping caps)	20mm - 600mm

3105 H14 Color Coated Aluminum Coil/Sheet (Color Coated Aluminum)

This is the core product form of the 3105 alloy. Thanks to its excellent surface treatment performance, it is an ideal substrate for paint coatings.

Applications: Residential siding, mobile housing panels, roofing systems.
Features: Strong coating adhesion, capable of withstanding long-term exposure to sunlight and rain without peeling.

3105 H14 Aluminum Foil Stock & Strips (Foil & Strips)

3105-H14 is often processed into thin strips for high-volume stamped components.

Closure stock: Widely used for caps (screw caps) for alcoholic beverages, drinks, and cosmetics. The hardness of H14 is sufficient to ensure crack-free stamping while maintaining the structural strength of the cap.
Lamp shades and lamp holders: Used for manufacturing metal bases and decorative parts of lighting fixtures.

3105 H14 Profiled / Corrugated Aluminum Sheets

Taking advantage of its good bending performance (H14 temper resists cracking during bending), 3105 is commonly processed into specially shaped architectural sheets.

Rainwater systems: Gutters, downspouts, and soffits.
Louvers: Used for sunshades or architectural ventilation louvers.

3105 H14 Aluminum Sign Blanks (Sign Blanks)

Applications: Road signs, advertising sign substrates.
Form: Typically pre-cut flat sheets, usually with thicknesses ranging from 0.5mm to 2.0mm.

Why Choose the H14 Temper for 3105 Aluminum?

H14 represents a "half-hard temper." In this condition, the 3105 alloy achieves an optimal balance between strength and formability:

If H18 (full hard) is selected, although the strength is higher, cracking is more likely to occur during bending.
If the O temper (annealed) is selected, the metal is too soft, and finished products are prone to deformation or collapse.
H14 allows 90-degree or even larger-angle bending without cracking, making it highly suitable for products manufactured through roll forming or stamping processes.

3105 H14 aluminum properties

Corrosion resistance: As a rust-resistant aluminum alloy, 3105 exhibits excellent corrosion resistance in atmospheric and freshwater environments, making it suitable for outdoor or humid applications.
Durability: Through strain hardening, the material’s durability and load-bearing capacity are enhanced, making it suitable for applications requiring a certain level of strength.
Moderate strength: Due to the addition of magnesium, its strength is higher than that of 1100 and 3003 alloys, making it well-suited for applications requiring medium strength.
Hardness characteristics: Strain hardening increases the hardness and stiffness of the material, improving load-bearing capacity while retaining a degree of ductility.
Processing performance: Supports both cold and hot working (such as rolling, bending, and stamping) and can be processed into various shapes and sizes.
Excellent weldability, suitable for arc welding, gas welding, spot welding, and other welding methods.
Mechanical properties: 3105 aluminum has relatively high tensile strength, shear strength, and yield strength. Copper (Cu) content is controlled below 0.2% to balance strength and corrosion resistance.
Surface finish: It features a “smoother” surface specifically optimized for painting and coating, which is why it is almost always used for pre-painted aluminum products.

3105 H14 Aluminum Designation and Standards

UNS: A93105
ISO: AlMn0.5Mg0.5
ASTM: B209 for sheet and strip

3105 Aluminum Temper H14 and Processing

H14 Temper: Strain-hardened and partially annealed to a quarter-hard state; balances strength and workability.
Forming: Primary forming into sheet or coil, followed by cold rolling to achieve the H14 temper.
Heat Treatment: Not heat-treatable; strength is gained solely through cold work.

Chemical compositon of 3105 aluminum sheet

Grade	Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Al
3105	0.6	0.7	0.3	0.30-0.8	0.20-0.8	0.2	-	0.4	remains

3105 Aluminum Sheet Mechenical Property

Alloy/Temper	Thickness	Tensile strength	Yield strength	Elongation %
Alloy/Temper	mm	Mpa	Mpa	Elongation %
3105 O/H111	>0.2-0.5	100-155	40	14
	>0.5-1.5			15
	>1.5-3			17
3105-H12	>0.2-0.5	130-180	105	3
	>0.5-1.5			4
	>1.5-3			4
3105-H22	>0.2-0.5	130-180	105	6
	>0.5-1.5			6
	>1.5-3			7
3105-H14	>0.2-0.5	150-200	130	2
	>0.5-1.5			2
	>1.5-3			2
3105-H24	>0.2-0.5	150-200	120	4
	>0.5-1.5			4
	>1.5-3			5
3105-H16	>0.2-0.5	175-225	160	1
	>0.5-1.5			2
	>1.5-3			2
3105-H26	>0.2-0.5	175-225	150	2
	>0.5-1.5			3
	>1.5-3			3
3105-H18	>0.2-3.0	195	180	1
3105-H28	>0.2-1.5	195	170	2
3105-H19	>0.2-1.5	215	190	1

3105 H14 Aluminum Physical and Thermal Properties

Density: 2.72 g/cm³ (0.0983 lb/in³)
Thermal Conductivity: 171 W/m·K (99 BTU/ft·hr·°F)
Coefficient of Thermal Expansion: 23.6 µm/m·°C (20–100°C)
Melting Range: 635–654°C (1175–1210°F)

3105 H14 Aluminum Corrosion Resistance

The 3105 alloy has excellent atmospheric corrosion resistance, making it suitable for external building applications. Due to its manganese and magnesium content, its performance surpasses that of pure 1100 alloy and is comparable to 3003 alloy.

3105 H14 Aluminum Formability and Weldability

Formability: Excellent bending, drawing, and stamping capabilities, not prone to cracking; ideal for complex shapes and deep drawing applications.
Weldability: Can be welded using conventional methods (MIG, TIG, resistance welding); however, painted/coated H14 sheets may require protection to prevent coating damage during torch welding.

3105 H14 Aluminum Fabrication and Processing

Formability: Excellent, suitable for bending, stamping, and deep drawing.
Weldability: Compatible with all commercial welding techniques (arc welding preferred).
Machinability: Moderate (aluminum alloy grade 30%); use of oil-based lubricants is recommended.
Heat Treatment: Non-heat-treatable; strain hardened through cold working (H14).

3105 H14 Aluminum Advantages and Limitations

Advantages: High corrosion resistance, lightweight, good electrical/thermal conductivity, easy to fabricate.
Limitations: Lower strength compared to heat-treatable alloys (e.g., 6000 series); limited machinability at higher temper conditions.

Comparison of 3105 Aluminum with Similar Alloys

3105 vs 3003: 3105 has higher strength (e.g., Brinell hardness of 46 compared to 3003-H14's 42).
3105 vs 5052: 5052 (magnesium-based) has higher strength but poorer formability.

What is 3105 aluminum used for?

3105 aluminum alloy is primarily used in construction, industrial, and household applications, offering excellent formability and corrosion resistance.

3105-H14 aluminum alloy improves durability and load-bearing capacity while maintaining appropriate ductility.

Construction: roofing, wall panels, gutters, exterior cladding, downspouts, and mobile homes.
Signage and Decorative Panels: pre-painted sheets, sign blanks, trailer siding—durable and aesthetically pleasing.
Sheet Metal Work: HVAC components, truck trailer covers, and industrial baffles.
Consumer Products: bottle caps, ceiling fans, and PCB drilling covers.
Signs and Display Stands: featuring smooth surface and paintability.
Heat Exchangers and Fins: applications where moderate strength and formability are critical.
Architectural Decoration: room dividers, mobile home panels, eaves troughs, shutters, etc.
Packaging Materials: bottle caps, stoppers, cake trays, can bodies, and non-food packaging such as screw caps and foil applications (H14/H16).
Industrial Uses: lamp cap materials, color-coated aluminum base materials, heat sinks, pressure vessels, and piping.

3105 h14 aluminum sheet applications

Application Area	Main Product Form	Typical Thickness Range	Key Requirements
Closure Packaging	3105 H14 coated / lubricated aluminum strip	0.20 - 0.30 mm	Deep drawability, earing rate control
Light Industrial Forming	3105 H14 narrow aluminum coil	0.15 - 0.45 mm	Fine surface quality, low springback
Building Rainwater Systems	3105 H14 color-coated aluminum strip / coil	0.40 - 0.90 mm	Weather resistance, crack-free bending of coating
Industrial Enclosures / Fuel Tanks	3105 H14 mill-finished aluminum sheet / plate	1.0 - 3.0 mm	Weldability, structural strength

Packaging Industry

In the packaging sector, 3105 H14 is a preferred material for metal containers due to its high cleanliness and isotropic properties.

Twist-off tamper-evident caps (such as those used for alcoholic beverages, cosmetics, and pharmaceutical packaging), taking advantage of its deep drawing performance and corrosion resistance.
Thin-gauge formed products such as tea tins, cake trays, and candle cups.

Roll-On Pilfer-Proof Caps (ROPP Caps):

Form & specifications: DOS lubricated aluminum strip or pre-coated aluminum strip; thickness 0.20mm - 0.28mm.
Low earing rate, deep drawing performance, coating adhesion.
The mechanical properties of 3105 H14 are extremely stable. During high-speed stamping operations, it ensures uniform skirt height without wavy edges, which is critical for the sealing safety of alcoholic beverages and pharmaceuticals.

Lightweight Formed Containers (Cake Trays, Candle Cups):

Form & specifications: Half-hard narrow coils (Narrow Strips); thickness 0.15mm - 0.40mm.
Technical keywords: Tensile strength, ductility, food-grade surface.
By utilizing the moderate hardness of the H14 temper, the material maintains container rigidity (compression resistance) while withstanding multiple drawing operations without cracking.

Architectural Decoration

In architectural applications, 3105 alloy is commonly used as a substrate combined with surface coating processes, balancing visual appeal and structural protection.

Outdoor components such as louvers, gutters, and downspouts benefit from long-term use due to their weather resistance and ease of fabrication.
Prepainted aluminum coils, interior partitions, and mobile housing roof panels meet requirements for aesthetics and lightweight construction.

Rainwater Collection Systems (Gutters, Downspouts):

Form & specifications: Prepainted aluminum coils; thickness 0.40mm - 0.80mm.
T-bend performance (crack-free bending of coating), corrosion resistance, roll forming.
3105 H14 exhibits excellent atmospheric corrosion resistance and remains more durable than ordinary steel sheets even in acid rain environments. The H14 temper allows complex profile forming on roll forming machines without cracking.

Modern Building Panels (Mobile Homes, Partitions):

Form & specifications: Corrugated sheets or flat sheets; thickness 0.80mm - 1.20mm.
Flatness, lightweight design, PVDF coating.
When used for large wall panels, 3105 provides higher yield strength than 1000 series alloys, helping maintain panel flatness under high wind loads and reducing the risk of bulging or deformation.

Industrial & Electrical Applications

In industrial environments, 3105 H14 primarily demonstrates its mechanical strength and processing tolerance.

Automotive fuel tanks, offering resistance to fuel corrosion and reduced weight.
Electrical equipment enclosures, balancing electrical conductivity and protection.

Automotive Transportation Components (Fuel Tanks, Fender Panels):

Form & specifications: Medium plates; thickness 1.2mm - 3.0mm.
Weldability, vibration fatigue resistance, forming limits.
Compared with 3003 alloy, 3105 contains a small amount of magnesium (Mg), which enhances the strength of welded joints. It is commonly used for non-load-bearing liquid tank sidewalls, providing resistance to fuel corrosion and vibration.

Electrical Equipment Enclosures:

Form & specifications: Cold-rolled mill-finished aluminum sheets; thickness 1.0mm - 2.5mm.
Electromagnetic shielding, thermal conductivity, punching.
3105 H14 is well suited for precision punching and bending. With aluminum content still above 98%, it retains good electrical conductivity and shielding effectiveness, helping protect internal electronic components from electromagnetic interference.

3105 vs 3003: What’s the Difference?

Although they are very similar, 3105 is often referred to in the industry as “recycled 3003” because its chemical composition allows a wider range of impurities. This makes it more cost-effective for large-scale construction projects. Structurally, 3105 offers slightly higher strength, while 3003 is “softer” and easier to deep draw into complex shapes (such as cookware).

What is the difference between 3003 H14 and 3105-H14?

Compared to 3003-H14, 3105-H14 generally has higher strength and slightly lower elongation, making it suitable for applications requiring greater durability and strength. Both alloys offer excellent corrosion resistance and are used in a variety of industrial and commercial applications.

Corrosion resistance: 3105 H14 has a higher manganese content, providing better pitting corrosion resistance than 3003 H14, especially in high-humidity or mildly corrosive environments.
Strength and formability: Both alloys have similar strength levels, but 3105 H14 has slightly lower formability than 3003 H14, making it more suitable for applications with higher corrosion resistance requirements.
Electrical conductivity: 3105 H14 has higher electrical conductivity (41% IACS) compared to 3003 H14 (approximately 35% IACS), making it more suitable for electrical applications.

Property	3105-H14 Aluminum Alloy	3003-H14 Aluminum Alloy
Corrosion Resistance	Excellent: Similar to 3003, providing good corrosion protection in various environments.	Excellent: Provides good corrosion resistance in various environments, including food and beverage applications.
Typical Applications	Residential exterior walls, mobile homes, rainwater transport items, and packaging materials, generally requiring higher strength and durability.	Cookware, tanks, chemical equipment, and basic materials requiring good formability and corrosion resistance.
Machinability	Good: Offers good machinability but with slightly higher strength and reduced ductility. Still easily formable and machinable for various applications.	Excellent: Known for its excellent machinability and ease of forming, widely used in applications requiring extensive shaping and forming.

When Should You Consider 3105 H14?

If you need a material that is easy to stamp and form, while also offering moderate strength and good corrosion resistance for products such as bottle caps and decorative panels, 3105 H14 is an economical and practical choice.

What should you pay attention to?

Its strength is at a medium level and it is not suitable for load-bearing structural applications. In addition, although it offers good weldability, its machinability is relatively average.

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