3A21 Aluminum Coil

Summit Metal Group Co., Ltd.

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3A21 Aluminum Coil

3A21 aluminum coil is an Al-Mn alloy. It is a widely used anti-rust aluminum with good corrosion resistance and good weldability. It is mainly used for applications requiring high plasticity and good weldability. And it usually works in liquid or gas media.

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Product Description

3A21 Aluminum Coil Description

3A21 aluminum alloy, also known as A921 aluminum alloy, is an aluminum alloy material whose main component includes aluminum and a small amount of other alloy elements such as manganese, copper, chromium, and Zinc. 3A21 aluminum coil has good tensile strength and yield strength and can meet applications with various strength requirements. 3A21 aluminum alloy has good corrosion resistance and can be used for a long time in humid and corrosive environments without rusting easily. Besides, 3A21 aluminum coil can be subjected to various surface treatments, such as anodizing, spraying, chrome plating, etc., to increase its surface hardness and decoration. Another thing that makes 3A21 aluminum coil a favorable option is aluminum alloy is light in weight and low in density compared to other metals. It is an ideal lightweight material and is suitable for product designs that require light weight.

Product Parameters

Width	20-3000mm or customized	Thickness	0.1-120mm or customized
Length	100-12000mm or customized	Certificate	ISO, SGS, BV
Standard	JIS, AISI, ASTM, GB, DIN, EN, etc.
Brand	1000 Series: 1050 1060 1070 1100 1200 1235 etc. 3000 Series: 3003 3004 3005 3104 3105 3A21 etc. 5000 Series: 5005 5052 5083 5086 5154 5182 5251 5754 5A05 etc. 6000 Series: 6061 6063 6082 6A02 etc. 7000 Series: 7050 7475 7075 etc. 8000 Series: 8A06 8011 8090 etc.
Surface	Coating, Embossing, Drawing, Polishing, Anodizing, etc.
OEM Service	Punching, Cutting Special Size, Making Flat Surface, Surface Treatment, etc.
Delivery Time	Received 30% after deposit 7-15 working days
Application	Construction, Shipbuilding, Decoration, Industry, Manufacturing, Machinery, Hardware and other fields
Sample	Free Offers Sample
Packaging	Strapping, Plastic bag, Film, Wooden pallet standard seaworthy export packing or according to customer requirement

Chemical Composition

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Others: Each	Others: Total	Al: Min.
1050	0.25	0.40	0.05	0.05	0.05	-	0.05	0.03	0.03	-	99.50
1060	0.25	0.35	0.05	0.03	0.03	-	0.05	0.03	0.03	-	99.60
1070	0.20	0.25	0.04	0.03	0.03	-	0.04	0.03	0.05	-	99.70
1100	0.95 Si Fee		0.05~0.20	0.05	-	-	0.1	-	0.05	0.15	99.0
2014	0.5~1.2	0.7	3.9~5.0	0.4~1.2	0.2~0.8	0.10	0.25	0.15	0.05	0.15	Allowance
2017	0.2~0.8	0.7	3.5~4.5	0.4~1.0	0.4~0.8	0.10	0.25	0.15	0.05	0.15	91.5 - 95.5
2024	0.50	0.50	3.8~4.9	0.3~0.9	1.2~1.8	0.10	0.25	0.15	0.05	0.15	Allowance
3003	0.60	0.70	0.05~0.20	1.0~1.5	-	-	0.10	-	0.05	0.15	Allowance
3A21	0.60	0.70	0.20	1.0-1.6	0.05	-	0.15	0.1-0.2	-	-	Allowance
3004	0.30	0.70	0.25	1.0~1.5	0.8~1.3	-	0.25	-	0.05	0.15	Allowance
3005	0.60	0.70	0.30	1.0~1.5	0.2~0.6	0.10	0.25	0.10	0.05	0.15	Allowance
3105	0.60	0.70	0.30	0.3~0.8	0.2~0.8	0.20	0.40	0.10	0.05	0.15	Allowance
5005	0.30	0.70	0.20	0.20	0.5~1.1	0.1	0.25	-	0.05	0.15	Allowance
5052	0.25	0.40	0.10	0.10	2.2~2.8	0.15~0.35	0.10	-	0.05	0.15	Allowance
5754	0.40	0.40	0.10	0.50	2.6~3.6	0.30	0.20	0.15	0.05	0.15	Allowance
5A05	0.50	0.50	0.10	0.3-0.6	4.8-5.5	-	0.20	-	0.05	0.05	Allowance
5083	0.40	0.40	0.10	0.4~1.0	4.0~4.9	0.05~0.25	0.25	0.15	0.05	0.15	Allowance
6061	0.40~0.8	0.70	0.15~0.4	0.15	0.8~1.2	0.04~0.35	0.25	0.15	0.05	0.15	Allowance
6082	0.70~1.3	0.50	0.10	0.4~1.0	0.6~1.2	0.25	0.20	0.10	0.05	0.15	Allowance
7075	0.40	0.50	1.2~2.0	0.30	2.1~2.9	0.18~0.28	5.1~6.1	0.20	0.05	0.15	Allowance

Mechanical Properties

Tensile Strength

(MPa)

Yield Strength

(MPa)

Hardness

Elongation Rate

(%)

89.6

15-28

Physical Performance

Density	Melting Point	Modulus of Elasticity	Thermal Conductivity
2.71 Kg/m³	643-675.2 °C	68.9 GPa	222 W/m.K

Annealing State

Brand	Annealing State
1xxx: 1050, 1050A, 1060, 1100	O, H12, H14, H16, H18, H22, H24, H26, H28, H111
3xxx: 3003, 3004, 3005, 3105	O, H12, H14, H16, H18, H22, H24, H26, H28, H111
5xxx: 5005, 5052, 5754, 5083, 5086, 5182, 5049, 5251, 5454	O, H22, H24, H26, H28, H32, H34, H36, H38, H111
6xxx: 6061, 6082	T4, T6, T451, T651
2xxx: 2024	T3, T351, T4
7xxx: 7075	T6, T651

Scope of Application

Aluminum Uses And Application Area
Food Packaging	Beverage can ends, cans, bottle caps, etc.
Building	Curtain walls, cladding, suspended ceilings, thermal insulation, venetian blinds, etc.
Transportation	Auto parts, passenger car bodies, aviation ships and air cargo containers.
Electronic Equipment	Electrical appliances, communication equipment,PCPlate drilling guide, lighting and heat dissipation materials, etc.
Consumer Goods	Umbrellas, cooking utensils, sports equipment, etc
Other	Military, color coated aluminum plate

Product Application

Packaging and shipping

Factory Display

FAQ

1. What are your main products?
We primarily deal in carbon steel (hot-rolled/cold-rolled sheets, coils, pipes, and bars), structural steel (angle bars, channel steel, I-beams, H-beams, square/rectangular tubes, etc.), galvanized products (galvanized sheets, coils, pipes, and profiles), and aluminum products (sheets, coils, profiles, and bars). We can also supply other steel varieties based on customer requirements.

2. Are you a manufacturer or a trader?
We are a comprehensive service provider integrating trading, processing, and distribution. We maintain close partnerships with major steel mills in Vietnam and the surrounding region, ensuring a stable supply chain. Additionally, our in-house processing center offers value-added services, combining the flexibility of a trader with the service capabilities of a processing plant.

3. Do you accept small-batch orders? What is the minimum order quantity (MOQ)?
Yes, we support small-batch and trial orders. The MOQ is typically one container (approx. 20–25 tons), depending on product specifications and dimensions. MOQs for aluminum products can be lower; please contact us for details.

4. What is the typical delivery time?
For standard products, delivery takes 15–30 days after receipt of the deposit, depending on order volume, product type, and current production scheduling. Stock items can be delivered sooner. Delivery times for customized orders will be longer, and we will inform you in advance.

5. What payment methods do you accept?
We generally accept T/T (Telegraphic Transfer) and L/C (Letter of Credit). More flexible payment terms can be negotiated for long-term clients. Specific ratios (e.g., 30% down payment and 70% balance) can be adjusted based on the order value and credit status.

6. What processing services do you offer?
We provide services such as cutting, punching, bending, welding, uncoiling, and leveling. We also offer customized deep processing of profiles based on technical drawings. All processing is performed in-house to ensure quality control and timely delivery.

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