3A21 Aluminum Bar

3A21 Aluminum Bar

3A21 aluminum alloy, commonly referred to as A921, is a versatile material crafted primarily from aluminum, enriched with trace amounts of elements like manganese, copper, chromium, and zinc. This alloy stands out for its impressive tensile and yield strength, making it a robust choice for applications demanding varying levels of structural integrity. Whether used in light-duty or heavy-duty settings, 3A21 aluminum bar meets the challenge.

One of its most remarkable features is its resistance to corrosion. Unlike many other metals that succumb to the ravages of time, 3A21 aluminum alloy maintains its durability even in harsh, humid, or corrosive environments. It resists rusting effortlessly, offering longevity that surpasses expectations.

But that’s not all—this aluminum alloy’s adaptability extends beyond its inherent properties. It can undergo various surface treatments, such as anodizing, spraying, or chrome plating, which enhance its surface hardness while also providing a sleek, decorative finish. These treatments allow for both functional and aesthetic flexibility in design.

Moreover, the low density and lightweight nature of 3A21 aluminum alloy make it an exceptional material for applications where weight is a critical factor. Its lightness, combined with its strength, positions it as a top choice in industries where reducing mass is as important as maintaining performance. Whether used in automotive, aerospace, or other weight-sensitive designs, it delivers both efficiency and resilience.

Product Parameters

Diameter	5-650mm or customized	Length	100-2000mm 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)	Elongation Rate(%)	Yield Strength (MPa)
≥75	≥ 4.5	≥35

Physical Performance

Density	Melting Point	Modulus of Elasticity	Thermal Conductivity	Thermal Expansion
2.7 Kg/m³	640 °C	68 GPa	230 w/m K	23×10-6/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
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