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Aluminium Billets
Product Overview
Aluminium billets are solid, semi-finished aluminium products used as the primary input for extrusion, forging, and precision machining applications. R V Metal Corporation supplies aluminium billets in extrusion and foundry grades engineered for consistent chemical composition, clean metallurgy, and uniform mechanical performance across the length. Our billets are available in a wide range of diameters and lengths, with options for homogenized billets, cut-to-length supply, and traceable heat-wise documentation. Depending on the alloy and temper, aluminium billets offer an excellent strength-to-weight ratio, high corrosion resistance, good thermal conductivity, and superior formability—making them ideal for automotive components, architectural profiles, electrical parts, industrial frames, marine hardware, and general engineering production where repeatability and surface quality matter.
Technical Specifications
| Parameter | Specification / Details |
|---|---|
| Product Form | Aluminium Billets (Extrusion & Foundry Grades) |
| Manufacturing Process | Direct Chill (DC) Casting, Homogenized Billets Available |
| Available Alloys | 1xxx, 2xxx, 3xxx, 5xxx, 6xxx, 7xxx Series (e.g., 6061, 6063, 6082, 7075, 2014) |
| Temper Condition | F, O, T4, T5, T6 (as applicable by alloy) |
| Diameter Range | 3" to 14" (76.2 mm to 355.6 mm) or as per customer requirement |
| Standard Length | 500 mm to 6000 mm (Cut-to-length available) |
| Surface Finish | As-Cast, Scalp-Cut, Homogenized Surface |
| Density | Approx. 2.70 g/cm³ (varies slightly by alloy) |
| Dimensional Tolerance | As per ASTM / EN standards or customer-specific tolerance |
| Homogenization | Optional (Improves Extrudability & Mechanical Uniformity) |
| Quality Control | Chemical Analysis, Ultrasonic Testing (UT), Visual & Dimensional Inspection |
| Standards | ASTM B221, ASTM B179, EN 573, EN 755, IS 733 |
| Documentation | Mill Test Certificate (EN 10204 3.1), Heat Number Traceability |
| Packing | Wooden Pallet, HDPE Wrap, Export Seaworthy Packing |
| Typical Applications | Extrusion Profiles, Automotive Parts, Structural Sections, Aerospace & Industrial Components |
Chemical Composition
| Alloy Series / Grade | Aluminium (Al) % | Copper (Cu) % | Magnesium (Mg) % | Silicon (Si) % | Zinc (Zn) % | Manganese (Mn) % | Iron (Fe) % | Chromium (Cr) % | Others % (Each / Total) |
|---|---|---|---|---|---|---|---|---|---|
| 1xxx Series (Pure Aluminium) | ≥ 99.0 | ≤ 0.05 | ≤ 0.05 | ≤ 0.25 | ≤ 0.05 | ≤ 0.05 | ≤ 0.40 | – | 0.03 / 0.10 |
| 2014 / 2xxx Series | Balance | 3.9 – 5.0 | 0.2 – 0.8 | 0.5 – 1.2 | ≤ 0.25 | 0.4 – 1.2 | ≤ 0.7 | ≤ 0.10 | 0.05 / 0.15 |
| 3003 / 3xxx Series | Balance | ≤ 0.20 | ≤ 0.05 | ≤ 0.60 | ≤ 0.10 | 1.0 – 1.5 | ≤ 0.70 | – | 0.05 / 0.15 |
| 5052 / 5xxx Series | Balance | ≤ 0.10 | 2.2 – 2.8 | ≤ 0.25 | ≤ 0.10 | ≤ 0.10 | ≤ 0.40 | 0.15 – 0.35 | 0.05 / 0.15 |
| 6061 / 6xxx Series | Balance | 0.15 – 0.40 | 0.8 – 1.2 | 0.4 – 0.8 | ≤ 0.25 | ≤ 0.15 | ≤ 0.70 | 0.04 – 0.35 | 0.05 / 0.15 |
| 6082 / 6xxx Series | Balance | ≤ 0.10 | 0.6 – 1.2 | 0.7 – 1.3 | ≤ 0.20 | 0.4 – 1.0 | ≤ 0.50 | ≤ 0.25 | 0.05 / 0.15 |
| 7075 / 7xxx Series | Balance | 1.2 – 2.0 | 2.1 – 2.9 | ≤ 0.40 | 5.1 – 6.1 | ≤ 0.30 | ≤ 0.50 | 0.18 – 0.28 | 0.05 / 0.15 |
UNS Codes & Grades
| Aluminium Alloy Series | Common Grade | UNS Designation | EN / ISO Equivalent | Primary Characteristics | Typical Applications |
|---|---|---|---|---|---|
| 1xxx Series | 1050 / 1060 / 1070 | A91050 / A91060 / A91070 | EN AW-1050 / EN AW-1060 | High purity, excellent electrical & thermal conductivity | Electrical conductors, bus bars, heat exchangers |
| 2xxx Series | 2014 | A92014 | EN AW-2014 | High strength, good machinability | Aerospace parts, structural components |
| 3xxx Series | 3003 | A93003 | EN AW-3003 | Good corrosion resistance, moderate strength | Heat exchangers, automotive radiators |
| 5xxx Series | 5052 | A95052 | EN AW-5052 | Excellent corrosion resistance, good weldability | Marine structures, pressure vessels |
| 6xxx Series | 6061 | A96061 | EN AW-6061 | Balanced strength, corrosion resistance & machinability | Extrusions, frames, general engineering billets |
| 6xxx Series | 6082 | A96082 | EN AW-6082 | Higher strength than 6061, good toughness | Structural billets, transport applications |
| 7xxx Series | 7075 | A97075 | EN AW-7075 | Very high strength, aerospace-grade alloy | Aerospace components, high-load structural parts |
Mechanical, Physical & Fabrication Properties
| Property Category | Parameter | Typical Value / Range | Applicable Aluminium Alloy Series | Remarks |
|---|---|---|---|---|
| Mechanical Properties | Tensile Strength | 70 – 570 MPa | 1xxx to 7xxx Series | Varies significantly with alloy composition and temper |
| Yield Strength | 30 – 505 MPa | 1xxx to 7xxx Series | Higher in heat-treatable alloys (2xxx, 6xxx, 7xxx) | |
| Elongation | 5% – 40% | All Series | Excellent ductility in pure & low-alloy grades | |
| Hardness (Brinell) | 20 – 160 HB | All Series | Increases with alloying and temper condition | |
| Impact Resistance | Good to Excellent | 5xxx & 6xxx Series | Preferred for structural and marine applications | |
| Physical Properties | Density | 2.70 g/cm³ | All Aluminium Alloys | Lightweight compared to steel and copper alloys |
| Melting Point | 580°C – 660°C | All Series | Depends on alloying elements | |
| Thermal Conductivity | 120 – 235 W/m·K | 1xxx, 3xxx, 6xxx | Excellent heat dissipation capability | |
| Electrical Conductivity | 30 – 65 % IACS | 1xxx, 6xxx Series | High conductivity in near-pure aluminium billets | |
| Coefficient of Thermal Expansion | 22 – 24 µm/m·K | All Series | Important for precision extrusion applications | |
| Fabrication Properties | Extrudability | Excellent | 6xxx Series | Most widely used billet series for extrusion |
| Machinability | Good to Excellent | 2xxx, 6xxx, 7xxx | Free-cutting grades available | |
| Weldability | Good | 5xxx, 6xxx Series | Reduced in high-strength 7xxx alloys | |
| Heat Treatability | Yes / No | 2xxx, 6xxx, 7xxx | Non-heat-treatable: 1xxx, 3xxx, 5xxx | |
| Hot Workability | Excellent | All Series | Ideal for forging and extrusion billets | |
| Surface Finish After Extrusion | Very Good | 6xxx Series | Suitable for anodizing and architectural finishes |
Common Names & International Identifiers
| Common Name | Aluminium Series | UNS Code | EN / European Designation | AA / ASTM Designation | ISO / International Identifier | Typical Applications |
|---|---|---|---|---|---|---|
| Pure Aluminium Billet | 1xxx Series | A91100 – A91190 | EN AW-1050 / EN AW-1070 | AA 1050 / 1070 / 1100 | ISO Al99.5 / Al99.7 | Electrical conductors, heat exchangers |
| Manganese Aluminium Billet | 3xxx Series | A93003 / A93005 | EN AW-3003 / 3005 | AA 3003 / 3005 | ISO AlMn1 | Radiators, HVAC, general extrusion |
| Magnesium Aluminium Billet | 5xxx Series | A95052 / A95083 | EN AW-5052 / 5083 | AA 5052 / 5083 | ISO AlMg2.5 / AlMg4.5Mn | Marine structures, pressure vessels |
| Magnesium Silicon Aluminium Billet | 6xxx Series | A96061 / A96063 / A96082 | EN AW-6061 / 6063 / 6082 | AA 6061 / 6063 / 6082 | ISO AlMgSi1 | Architectural profiles, extrusion sections |
| High Strength Aluminium Billet | 7xxx Series | A97050 / A97075 | EN AW-7050 / 7075 | AA 7050 / 7075 | ISO AlZnMgCu1.5 | Aerospace, defence, high-load components |
| Copper Aluminium Billet | 2xxx Series | A92014 / A92024 | EN AW-2014 / 2024 | AA 2014 / 2024 | ISO AlCu4Mg1 | Automotive, aerospace forgings |
| Extrusion Grade Aluminium Billet | 6xxx Optimized | A96063 | EN AW-6063 | AA 6063 | ISO AlMg0.7Si | Window frames, tubes, heat sinks |
| Foundry / Casting Billet | 4xxx / 3xxx | A94043 | EN AC-43000 | AA 4043 | ISO AlSi5 | Automotive castings, welding wire billets |
Standards & International Equivalents
| Standard System | Standard / Specification | Common Alloy Series Covered | Typical Alloy Examples | Remarks / Usage |
|---|---|---|---|---|
| ASTM / AA (USA) | ASTM B221 / ASTM B221M | 1xxx, 2xxx, 3xxx, 5xxx, 6xxx, 7xxx | 1100, 2014, 3003, 5052, 6061, 6063, 7075 | Primary standard for aluminium extrusion billets |
| ASTM / AA (USA) | ASTM B247 / B247M | 6xxx, 7xxx | 6063, 6082, 7075 | Billets and bars for extrusion & forging |
| EN (Europe) | EN 573 (Parts 1–4) | All wrought aluminium alloys | EN AW-1050, 2014, 5083, 6061, 7075 | Chemical composition classification |
| EN (Europe) | EN 515 | All series | T4, T5, T6, T651 | Defines temper designations |
| EN (Europe) | EN 755 | 6xxx primarily | 6063, 6061, 6082 | Extruded products including billets |
| ISO | ISO 6361 / ISO 6362 | Wrought aluminium alloys | Al99.5, AlMgSi1, AlZnMgCu | International aluminium specification |
| JIS (Japan) | JIS H4040 / JIS H4100 | 1xxx to 7xxx | A1100, A2017, A5052, A6063, A7075 | Japanese industrial standards |
| DIN (Germany) | DIN 1748 / DIN EN 573 | All wrought alloys | AlMgSi0.5, AlCu4Mg1 | Legacy DIN replaced by EN standards |
| GB (China) | GB/T 3190 / GB/T 6892 | 1xxx–7xxx | 1060, 2024, 5052, 6061, 7075 | Chinese national aluminium standards |
| IS (India) | IS 733 / IS 1285 | Commercial & high-strength alloys | IS:19000 (AA 6061), IS:24345 | Indian standard for aluminium billets & products |
| BS (UK) | BS EN 573 / BS EN 755 | Wrought aluminium alloys | HE30, HE9, HE15 equivalents | British adoption of EN standards |
Applications
| Industry / Sector | Application Area | Typical Alloy Series Used | End Products Manufactured from Billets | Key Performance Requirements |
|---|---|---|---|---|
| Extrusion Industry | Aluminium profile extrusion | 6xxx (6061, 6063, 6082) | Architectural profiles, frames, rails, channels | Good extrudability, surface finish, strength |
| Automotive | Structural & functional components | 2xxx, 5xxx, 6xxx, 7xxx | Crash members, chassis parts, heat sinks | High strength-to-weight ratio, fatigue resistance |
| Aerospace | Aircraft structural parts | 2xxx, 7xxx (2014, 7075) | Wing components, fittings, brackets | High strength, dimensional stability |
| Construction | Building & infrastructure | 6xxx, 5xxx | Window frames, curtain walls, handrails | Corrosion resistance, formability |
| Electrical & Electronics | Conductive and thermal components | 1xxx, 6xxx | Busbars, heat sinks, enclosures | High conductivity, thermal performance |
| Marine | Shipbuilding & offshore structures | 5xxx (5083, 5052) | Deck structures, fittings, panels | Excellent corrosion resistance in seawater |
| Industrial Machinery | Machined and forged components | 6xxx, 7xxx | Housings, shafts, brackets | Machinability, mechanical strength |
| Transportation | Rail & commercial vehicles | 6xxx, 5xxx | Body structures, interior fittings | Lightweight, structural integrity |
| Renewable Energy | Solar & wind systems | 6xxx | Solar panel frames, mounting systems | Weather resistance, durability |
| Consumer Goods | General fabrication | 3xxx, 6xxx | Furniture components, appliances | Formability, surface finish |
Common Aluminium Billets – Sizes & Theoretical Weight Chart
| Nominal Diameter (Inch) | Diameter (mm) | Common Length Range (mm) | Theoretical Weight (kg/m) | Approx. Weight @ 3m (kg) | Approx. Weight @ 6m (kg) |
|---|---|---|---|---|---|
| 3" | 76.2 | 500–6000 | 12.31 | 36.94 | 73.88 |
| 4" | 101.6 | 500–6000 | 21.89 | 65.67 | 131.34 |
| 5" | 127.0 | 500–6000 | 34.20 | 102.61 | 205.22 |
| 6" | 152.4 | 500–6000 | 49.25 | 147.76 | 295.51 |
| 7" | 177.8 | 500–6000 | 67.04 | 201.11 | 402.22 |
| 8" | 203.2 | 500–6000 | 87.56 | 262.68 | 525.35 |
| 9" | 228.6 | 500–6000 | 110.82 | 332.45 | 664.90 |
| 10" | 254.0 | 500–6000 | 136.81 | 410.43 | 820.87 |
| 11" | 279.4 | 500–6000 | 165.54 | 496.62 | 993.25 |
| 12" | 304.8 | 500–6000 | 197.01 | 591.02 | 1182.05 |
| 13" | 330.2 | 500–6000 | 231.21 | 693.63 | 1387.26 |
| 14" | 355.6 | 500–6000 | 268.15 | 804.45 | 1608.90 |
The weights below are theoretical for solid round aluminium billets, calculated using a typical aluminium density of 2.70 g/cm³. Actual billet weight can vary due to alloy selection (6xxx/7xxx), casting method, surface condition, and diameter/length tolerances. Standard billet lengths are commonly supplied in 500–6000 mm (cut-to-length available).
Formula (solid round billet): Weight (kg/m) = (π/4) × D² × ρ / 1000, where D is in mm and ρ is density in g/cm³.
