Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 3105 aluminum sheet supplier | astm b209 al-mn alloy sheet for roofing & cladding in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
3105 aluminum sheet is a high-demand Al-Mn alloy aluminum sheet and plate widely used in roofing sheets, insulation aluminum jacketing, rain gutters, exterior cladding, and color-coated aluminum panels. Manufactured in accordance with ASTM B209, EN 485, and ISO 209 standards, 3105 aluminum sheet is commonly supplied in H12, H14, H16, H18, and H24 tempers, offering excellent formability, stable strength, and reliable corrosion resistance. With thickness ranging from 0.2 mm to 6.0 mm and wide availability in custom widths and cut-to-length sizes, 3105 aluminum sheet is an ideal base material for pre-painted aluminum sheets and coils, making it a preferred choice for construction, insulation, and architectural aluminum applications in global markets.
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3105 aluminum sheet
As a professional 3105 aluminum sheet supplier, manufacturer, and exporter, we provide high-quality Al-Mn alloy 3105 aluminum sheets and plates for global construction and industrial markets. Our 3105 aluminum sheet is produced in compliance with ASTM B209, EN 485, and ISO 209 standards, available in H12, H14, H16, H18, and H24 tempers, with thickness from 0.2 mm to 6.0 mm and support for custom width, cut-to-length, and color-coated processing. With stable quality control, competitive factory pricing, and reliable export packaging, our 3105 aluminum sheets are widely supplied for roofing sheets, insulation aluminum jacketing, rain gutters, and pre-painted aluminum panels, serving buyers, distributors, and project contractors worldwide.
Quick Buyer Decision Guide – 3105 Aluminum Sheet
1️⃣ When Should You Choose 3105 Aluminum Sheet?
Choose 3105 aluminum sheet if your application requires:
Excellent formability for bending, roll forming, or profiling
Reliable corrosion resistance for outdoor or humid environments
A stable and economical base material for color-coated aluminum sheets or coils
Slightly higher strength than 3003 aluminum with similar workability
Typical uses include roofing sheets, insulation aluminum jacketing, rain gutters, and architectural cladding.
2️⃣ Recommended Tempers by Application
| Application | Recommended Temper | Reason |
|---|---|---|
| Roofing & Wall Panels | H14 / H24 | Balanced strength & formability |
| Insulation Jacketing | H14 | Easy forming and wrapping |
| Rain Gutters | H24 | Higher strength with good bendability |
| Color-Coated Aluminum | H24 | Stable surface & coating adhesion |
| Decorative Cladding | H16 / H24 | Better rigidity and flatness |
3️⃣ Thickness Selection Guide
| Thickness Range | Typical Use |
|---|---|
| 0.2–0.5 mm | Insulation jacketing, wrapping |
| 0.6–1.2 mm | Roofing sheets, gutters |
| 1.5–3.0 mm | Wall panels, exterior cladding |
| 3.0–6.0 mm | Structural or reinforced applications |
4️⃣ 3105 vs 3003 vs 5052 Aluminum Sheet (Engineering Comparison)
📊 Technical & Application Comparison Table
| Property | 3105 Aluminum Sheet | 3003 Aluminum Sheet | 5052 Aluminum Sheet |
|---|---|---|---|
| Alloy System | Al-Mn (Mn ~0.3–0.8%) | Al-Mn (Mn ~1.0–1.5%) | Al-Mg (Mg ~2.2–2.8%) |
| ASTM Standard | ASTM B209 | ASTM B209 | ASTM B209 |
| Strength Level | Medium ⭐ | Medium | High ⭐ |
| Tensile Strength | ~110–160 MPa | ~110–145 MPa | ~210–260 MPa |
| Yield Strength | ~95–145 MPa | ~40–120 MPa | ~130–200 MPa |
| Corrosion Resistance | ⭐⭐⭐⭐ Excellent | ⭐⭐⭐ Good | ⭐⭐⭐⭐ Excellent |
| Formability | ⭐⭐⭐⭐ Excellent | ⭐⭐⭐⭐ Excellent | ⭐⭐⭐ Good |
| Weldability | Excellent | Excellent | Excellent |
| Surface Finish | Very Good | Good | Good |
| Fatigue Resistance | Medium | Medium | High ⭐ |
| Density | 2.71 g/cm³ | 2.73 g/cm³ | 2.68 g/cm³ |
| Work Hardening Rate | Medium | Low–Medium | High |
| Anodizing Performance | Good | Good | Very Good |
🏗️ 3105 Aluminum Sheet
Designed for architectural forming applications
Best balance of:
corrosion resistance
formability
moderate strength
Widely used in roofing, gutters, cladding systems
👉 Engineering role: "Structural exterior aluminum for building envelope systems"
🏠 3003 Aluminum Sheet
General-purpose aluminum alloy
Slightly lower strength than 3105
Excellent formability
Widely used in:
HVAC systems
general sheet metal fabrication
👉 Engineering role: "Universal forming-grade aluminum sheet"
⚙️ 5052 Aluminum Sheet
Magnesium-based alloy (Al-Mg system)
Highest strength among the three
Excellent marine corrosion resistance
Used in:
marine structures
fuel tanks
industrial panels
👉 Engineering role: "High-strength corrosion-resistant structural aluminum"
5️⃣ Surface & Processing Options
Mill Finish
Color-Coated (PE / PVDF)
Embossed / Stucco Finish
Cut-to-length sheets
Slitting and custom widths
6️⃣ Export & Ordering Considerations
Before placing an order, confirm:
Alloy & temper (e.g. 3105 H24)
Thickness, width, and length tolerances
Surface finish or coating requirement
Packaging standard (pallet / crate / moisture-proof)
MOQ and lead time
7️⃣ Is 3105 Aluminum Sheet Right for You?
✔ Yes, if you need formable, corrosion-resistant, cost-effective aluminum
✔ Yes, if your project involves pre-painted aluminum sheets or coils
✖ Not recommended if high structural strength is the primary requirement
Aluminum Alloy Selection Guide – 3003 vs 3004 vs 3005 vs 3105
| Alloy | Alloy Series | Relative Strength | Formability | Corrosion Resistance | Typical Tempers | Typical Thickness | Key Applications | Buyer Recommendation |
|---|---|---|---|---|---|---|---|---|
| 3003 | Al-Mn | Medium | Excellent | Good | H14 / H24 | 0.2–6.0 mm | General fabrication, insulation jacketing, basic roofing, decorative panels | Best choice for general-purpose aluminum sheet where cost and easy forming matter |
| 3004 | Al-Mn-Mg | Medium–High | Good | Good | H14 / H19 | 0.2–5.0 mm | Beverage can bodies, containers, packaging panels | Choose when higher strength than 3003 is required but extreme formability is not critical |
| 3005 | Al-Mn-Mg | Medium–High | Good | Good | H14 / H24 | 0.5–6.0 mm | Roofing sheets, wall panels, exterior cladding | Ideal for architectural panels requiring better rigidity than 3003 |
| 3105 | Al-Mn | Medium (Higher than 3003) | Excellent | Good | H14 / H24 | 0.2–6.0 mm | Roofing sheets, insulation jacketing, rain gutters, color-coated aluminum sheets & coils | Best cost-performance alloy for roofing & color-coated aluminum |
Contact Us
Are you looking for a reliable supplier, manufacturer, or exporter of 3105 aluminum sheet? We provide high-quality Al-Mn alloy aluminum sheets and plates with customizable size, temper, and surface finish to meet your project requirements.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What is 3105 aluminum sheet used for?
A: 3105 aluminum sheet is widely used in roofing sheets, insulation jacketing, rain gutters, exterior cladding, and color-coated aluminum panels. Its excellent formability and corrosion resistance make it suitable for both construction and industrial applications.
Q2: What is the difference between 3105 and 3003 aluminum sheet?
A: 3105 provides slightly higher strength than 3003 while maintaining excellent formability and corrosion resistance. It is also more suitable as a base material for pre-painted aluminum sheets and coils.
Q3: What tempers are available for 3105 aluminum sheet?
A: Common tempers include H12, H14, H16, H18, and H24. H24 is most recommended for roofing and coated aluminum applications due to its stable flatness and strength.
Q4: Can 3105 aluminum sheet be welded?
A: Yes, it can be welded using standard aluminum welding methods. Post-welding corrosion protection and surface finishing may be required depending on the application.
Q5: What thickness and width ranges are available?
A: Thickness ranges from 0.2 mm to 6.0 mm, width ranges from 500 mm to 2000 mm, and lengths from 1000 mm to 6000 mm. Custom cut-to-length and slitting services are available.
Q6: Is 3105 aluminum sheet suitable for color coating?
A: Yes, 3105 is one of the most widely used alloys for pre-painted aluminum sheets and coils due to its excellent surface quality, adhesion, and corrosion resistance.
Q7: What standards does 3105 aluminum sheet comply with?
A: Our 3105 aluminum sheets meet ASTM B209, EN 485, and ISO 209 standards. Third-party inspection (SGS, BV, TUV) is available upon request.
Q8: What is the minimum order quantity (MOQ) for 3105 aluminum sheet?
A: MOQ varies depending on thickness, temper, and customization. Typically, we supply 1–5 metric tons per order, and OEM or large-volume orders are welcome.
Q9: How is 3105 aluminum sheet packaged for export?
A: Export-standard packaging includes moisture-proof paper + PE film, stacked on wooden pallets or crates. Coil eye-to-wall or eye-to-sky packaging is available.
Q10: Can you supply custom sizes and processing?
A: Yes. We provide custom width, cut-to-length sheets, slitting, color coating, and embossing according to buyer requirements.
Q11: How do I choose between 3105, 3003, 3004, and 3005 aluminum sheet?
A: See our Aluminum Alloy Selection Guide:
3003 – Best for general fabrication and insulation, low cost, excellent formability
3004 – Higher strength for packaging or can body applications
3005 – Architectural panels, wall cladding, roofing
3105 – Roofing, gutters, insulation, pre-painted aluminum sheets (best cost-performance)
👉 From an engineering perspective, 3105 aluminum sheet is the most balanced solution for architectural exterior applications, offering better corrosion resistance than 3003 and better formability than 5052 in large-scale forming systems.
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