Extruded 6061 Aluminum bar T6 T4 T651
Shenzhen Chinalco Metal supply extruded 6061 aluminum bars in a variety of shapes—including flat, round, and hexagon—and tempers such as T6, T651, and T4. Known as one of the most versatile and widely used aluminum alloys, 6061 offers an excellent balance of strength, corrosion resistance, and machinability, making it a go-to material across many industries. Let's take a closer look at the chemical composition, mechanical properties, and common applications of 6061 extruded aluminum bars to help you find the right fit for your needs.
Chemical composition of 6061 Aluminum Bar
| Element | Content (%) |
|---|---|
| Aluminum (Al) | 95.8 – 98.6 |
| Magnesium (Mg) | 0.8 – 1.2 |
| Silicon (Si) | 0.4 – 0.8 |
| Iron (Fe) | ≤ 0.7 |
| Copper (Cu) | 0.15 – 0.4 |
| Chromium (Cr) | 0.04 – 0.35 |
| Zinc (Zn) | ≤ 0.25 |
| Titanium (Ti) | ≤ 0.15 |
| Others | ≤ 0.15 (total) |
Mechanical Properties of 6061 Aluminum Bars (T6, T651, T4)
| Property | T4 Temper | T6 Temper | T651 Temper |
|---|---|---|---|
| Yield Strength (MPa) | ~145 | ≥ 240 | ≥ 240 |
| Ultimate Tensile Strength | ~240 MPa | ≥ 260 MPa | ≥ 260 MPa |
| Elongation (%) | 10–16% | 8–10% | 8–10% |
| Brinell Hardness | ~60 | 95 | 95 |
| Density (g/cm³) | 2.70 | 2.70 | 2.70 |
| Modulus of Elasticity (GPa) | ~68.9 | ~68.9 | ~68.9 |
T4: Naturally aged after solution heat treatment. Offers good ductility and is easy to form or bend.
T6: Artificially aged after solution heat treatment. Provides maximum strength.
T651: Similar to T6 but stress-relieved by stretching. Ideal for precision machining.
6061 aluminum bar available shapes and applications
(1) 6061 Aluminum Flat Bar
Rectangular cross-section, ideal for machined parts, frames, and brackets where stability and a clean surface finish are important. It is also used in automotive chassis, aerospace components, and marine fittings.
(2) 6061 Aluminum Round Bar
Cylindrical solid bar, commonly used for shafts, pins, fasteners, and precision-machined components. Its excellent balance of strength and machinability makes it suitable for CNC machining and structural parts in transportation and industrial equipment.
(3) 6061 Aluminum Hex Bar
Hexagonal profile provides easy wrench grip, widely used for nuts, bolts, connectors, and custom fittings. The uniform strength and corrosion resistance of 6061-T6 make it a go-to material for mechanical and aerospace hardware.
6061 aluminum bar standard
ASTM B211, AMS 4115, AMS 4116, AMS 4117, AMS 4128, AMS-QQ-A-225/8 & ASTM B221, AMS4150, AMS 4160, AMS 4161, AMS-QQ-A-200/8
6061 t6 aluminum bar stock size
aluminum flat bar
| Alloy | Height(mm) | Width(mm) |
| 6061 flat bar | 2,3,5,6,8,10,12,14,15,16,18, 18.5,20,25,30,35,40,45,50,55, 60,65,70,75,76,80,85,90,100, | 20,25,30,40,50,75,85,95, 100,110,120,130,140,150, 160,170,180,190,200 |
aluminum hexagon bar
| 6061 hex bar flat to flat distance(mm) | H7,8,9,10,11,12,13,14,15,16,17,18,19,20, 21,22,23,24,25,26,27,28,29,30,32,35,40 |
aluminum round bar
Alloy | Temper | Dia.(mm) | Length(mm) |
6061 | T651 | φ5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36 38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53, 54,55,56,57,58,59,60,62,63,65,68, 70,75,80,85,90,95, 100,105,110,115,120,125,130,135,140,145,150,155, 160,165,170,175,180, | 2500/3000 |
6061 | T6 | φ190,195,200,205,210,215,220,230, 240,250,260,270,280,290, | 2500/3000 |
6061 | T6 | φ300,310,320,330,340 | 2500 |
6061 | H112 | φ350,360,370,380,390,400,410,420,430,440,450,460, 470,480,490,500,510,520,530,540,550,560,570,580, 590,600,610,620 | 2500 |
FAQs – Common Questions About 6061 Aluminum Bars
Q1: How much does 5-inch 6061 aluminum round bar weight?
A 5-inch diameter solid 6061 aluminum round bar weighs approximately 35.3 lb per foot (52.5 kg/m).
(Formula: π × (D² / 4) × L × ρ, where ρ = 2.7 g/cm³.) and we also have the metal calculation for you to calculate the weight easily.
Q2: How to bend 6061 aluminum bar without cracking?
6061-T6 is relatively hard and can crack if bent sharply. For better bendability, use 6061-T4 condition, perform the bend, then re-age to T6 temper for full strength recovery.
Q3: What is the machinability of 6061-T6 aluminum bar?
6061-T6 offers excellent machinability—it cuts cleanly, holds tight tolerances, and provides a smooth finish, making it a top choice for CNC parts and precision tooling.
Q4: What's the difference between 6061 and 7075 aluminum bar?
7075 offers higher strength but lower corrosion resistance and weldability, while 6061 is more versatile, corrosion-resistant, and suitable for structural, marine, and general-purpose uses.
