6061-T6 Aluminum Rectangular Bar Equivalent Grades

Jan 21, 2026

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6061-T6 Aluminum Rectangular Bar Equivalent Grades

6061-T6 Aluminum Rectangular Bar is internationally recognized and supplied under multiple standards. The alloy is commonly identified by its UNS designation and is widely accepted for industrial and engineering applications.

 

Equivalent Grades of 6061-T6 Aluminum Bar

Standard Designation
ASTM/ASME Aluminium 6061-T6 Bar
UNS A96061
DIN -

GNEE, a Chinese supplier of aluminum products, manufactures and supplies UNS A96061 (AA 6061-T6) aluminum bars in rectangular, round, square, hex, and customized profiles.

 

UNS A96061 Rod Material Specification

Dimensions ASTM, ASME, AMS
Specifications ASTM B211, AMS 4115, 4116, 4117, 4128, AMS-QQ-A-225/8 & ASTM B221, AMS4150, 4160, 4161, AMS-QQ-A-200/8
Alloy 6061 – T6
Size 1/4" Dia – 16" Dia
Form Square , Round , Hex , Flat, Wire In Black & Bright Finish
Length Random, Fix & Cut Length
Finish Bright, Polish & Black

 

Physical Properties of 6061-T6 Aluminum Bar

The 6061-T6 aluminum alloy offers an excellent balance of low weight, thermal efficiency, and structural strength, making it suitable for demanding environments.

 

6061-T6 Aluminum Physical Properties

Property Value
Density 2.70 g/cm³
Melting Point 582 °C
Thermal Expansion 23.4 × 10⁻⁶ /K
Modulus of Elasticity 69 GPa
Thermal Conductivity 170 W/m·K
Electrical Conductivity 43% IACS

 

Thermal Properties of 6061-T6 Aluminum T-Bar

6061-T6 Aluminum T-Bar demonstrates stable thermal behavior across a wide temperature range, which is critical for structural and mechanical applications.

 

6061-T6 Aluminum Thermal Characteristics

Property Metric Imperial
CTE at 20°C (68°F) 23.6 µm/m 13.1 µin/in-°F
CTE at 250°C 25.2 µm/m-°C 14 µin/in-°F
Specific Heat Capacity 0.896 J/g-°C 0.214 BTU/lb-°F
Thermal Conductivity 167 W/m-K 1160 BTU-in/hr-ft²-°F
Melting Range 582 – 652 °C 1080 – 1205 °F
Solidus Temperature 582 °C 1080 °F
Liquidus Temperature 652 °C 1205 °F

 

Electrical Properties of ASME SB 211 AA6061-T651 Bright Bar

The ASME SB 211 AA6061-T651 Bright Bar offers consistent electrical performance, making it suitable for conductive and structural components.

 

6061-T651 Aluminum Electrical Property

Property Value
Electrical Resistivity 3.99 × 10⁻⁶ ohm-cm (typical at 68°F)

6061-Aluminum

Manufacturer of 6061-T6 Aluminum Bars – GNEE

GNEE is a professional manufacturer and exporter of 6061-T6 aluminum hex bars, square bars, cold-drawn bars, forged bars, and polished bars. All products are supplied in accordance with ASTM B211, ASME SB 211, and related international standards, offering reliable quality and competitive pricing.

 

Tolerances of AL 6061-T6 Cold Drawn Bars

Dimensional accuracy is critical for precision machining. 6061-T6 aluminum cold-drawn bars are produced with strict tolerance control.

 

Tolerances for UNS A96061 Rods (Cold Drawn)

Round Bars

Diameter Range (mm) Permitted Variation (mm)
≥ 6 to ≤ 18 +0 / −0.070
> 18 to ≤ 30 +0 / −0.085
> 30 to ≤ 50 +0 / −0.100
> 50 to ≤ 80 +0 / −0.120
> 80 to ≤ 100 +0 / −0.140

 

Flat Bars-Thickness

Thickness (mm) Permitted Variation (mm)
< 18 +0 / −0.110
> 18 to ≤ 30 +0 / −0.130
> 30 to ≤ 50 +0 / −0.250
> 50 to ≤ 80 +0 / −0.350

 

Flat Bars-Width

Width (mm) Permitted Variation (mm)
< 18 +0 / −0.110
> 18 to ≤ 30 +0 / −0.130
> 30 to ≤ 50 +0 / −0.160
> 50 to ≤ 80 +0 / −0.190
> 80 to ≤ 100 +0 / −0.220
> 100 to ≤ 130 +0 / −0.350
> 130 to ≤ 160 +0 / −1.00
> 160 to ≤ 320 ± 1.00

 

Square and Hex Bars

Across Flats (mm) Permitted Variation (mm)
≥ 6 to ≤ 18 +0 / −0.090
> 18 to ≤ 30 +0 / −0.110
> 30 to ≤ 50 +0 / −0.130
> 50 to ≤ 80 +0 / −0.160
> 80 to ≤ 105 +0 / −0.250

 

Tolerances of Turned 6061-T6 Aluminum Flat Bar (BS 970-3)

Turned AA 6061-T6 aluminum flat bars are supplied with controlled dimensional variations suitable for precision applications.

 

Turned 6061-T6 Aluminum Round Bar Diameter Tolerances

Diameter (mm) Permitted Variation (mm)
≥ 6 to ≤ 18 +0 / −0.070
> 18 to ≤ 30 +0 / −0.085
> 30 to ≤ 50 +0 / −0.100
> 50 to ≤ 80 +0 / −0.120
> 80 to ≤ 120 +0 / −0.140
> 120 to ≤ 180 +0 / −0.160
> 180 to ≤ 250 +0 / −0.185
> 250 to ≤ 315 +0 / −0.210
> 315 to ≤ 400 +0 / −0.230
> 400 +0 / −0.250

 

Precision 6061-T6 Aluminum Threaded Rod Tolerances

BS 970-3 Precision Tolerance Classes

Diameter Range Class A Class B Class C
≥ 6 mm to < 75 mm 0.05 mm 0.025 mm 0.013 mm

 

ISO H-Series Tolerances for Cold Drawn 6061-T6 Aluminum Rod

Cold-drawn 6061-T6 aluminum rods are available in ISO "H" tolerance classes (h5 to h12), ensuring suitability for high-precision mechanical assemblies across a wide diameter range.

 

Applications and Supply of 6061-T6 Aluminum Bars

Due to its high strength-to-weight ratio, corrosion resistance, weldability, and machinability, 6061-T6 aluminum bars are widely used in:

Structural and architectural components

Automotive and transportation systems

Aerospace fittings

Machinery parts

Precision engineering and fabrication

 

GNEE supplies 6061-T6 polished bars, cold-drawn bars, precision rods, rectangular bars, and welding rods directly from stock, with customizable sizes and fast global delivery.

For technical details, datasheets, pricing, or a complete product catalog, please contact GNEE, your reliable partner for high-quality 6061-T6 aluminum bar solutions.

Contact now

6061-T6 Aluminum round Bar