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Aluminium 6063 Pipes & Tubes

The premier Architectural Alloy - Known for its excellent extrudability, superior surface finish, and high resistance to atmospheric corrosion.

Alloy 6063 Technical Overview

Aluminium 6063 is a medium-strength alloy, often referred to as an "architectural alloy." It is a Magnesium and Silicon alloy that provides the best combination of extrudability, corrosion resistance, and the ability to be anodized to a high-quality finish. Grade 6063 is widely used for intricate extrusions where surface appearance is critical. It responds well to heat treatment (T5, T6 tempers) and offers good weldability and brazeability. At Steel Emporium, we supply 6063 pipes and tubes specifically designed for architectural structures, irrigation systems, and decorative frameworks.

Key Material Advantages

Superior Surface Finish

The smoothest surface finish of all common alloys, perfect for anodizing.

Excellent Extrudability

Highly suited for producing complex hollow shapes and intricate designs.

Weather Resistance

Offers excellent resistance to atmospheric corrosion and UV exposure.

Table 1: Chemical Composition (%)
GradeSiFeCuMnMgCrZnTiAl
Al 6063 0.2 - 0.6 0.35 max 0.10 max 0.10 max 0.45 - 0.9 0.10 max 0.10 max 0.10 max Balance
Table 2: Mechanical Properties
TemperTensile Strength (MPa)Yield Strength (MPa)Elongation (%)Hardness (HB)
6063-O (Annealed)90 max50 max18% min25
6063-T5150 min110 min7% min60
6063-T6205 min170 min8% min73
Table 3: Physical Properties
PropertyValue
Density2.70 g/cm³ (0.0975 lb/in³)
Melting Point600 °C (1110 °F)
Thermal Conductivity (T6)200 W/m·K
Electrical Resistivity (T6)33.1 nΩ·m
Modulus of Elasticity69.5 GPa
Table 4: International Equivalents
UNSISODIN / WerkstoffJISCommon Name
A96063AlMg0.7Si3.3206H40406063 Alloy
Table 5: Aluminium 6063 Pipe Weight Chart (Kg/Mtr)
Nominal Size (NB)OD (mm)SCH 10 (kg/m)SCH 40 (kg/m)SCH 80 (kg/m)
1/2"21.340.430.540.71
1"33.400.711.091.43
2"60.331.331.852.53
3"88.902.283.915.28
4"114.303.755.467.58
*Weights are theoretical based on density 2.70 g/cm³.

Industrial Applications

Architecture

Window frames, door frames, and curtain walls.

Furniture

Office furniture, partitions, and light fittings.

Irrigation

Lightweight irrigation pipes for agriculture.

Signage

Sign frames and billboard structures.

Handrails

Safety railings and balustrades.

Electrical

Bus bars and electrical conduit pipes.

Frequently Asked Questions

6061 has higher strength and is used for structural applications. 6063 has a better surface finish and is preferred for architectural applications where aesthetics and anodizing quality are priorities.

Yes, 6063 is widely known as the best alloy for anodizing. It produces a very clear and consistent oxide film, making it perfect for decorative colored finishes.

These are heat-treatment designations. T5 is cooled from an elevated temperature and artificially aged. T6 is solution heat-treated and artificially aged, providing the maximum strength for the alloy.

Yes, 6063 has excellent weldability using TIG or MIG welding. However, welding may reduce the strength in the heat-affected zone, which should be considered in design.

Yes, we supply a variety of standard and custom 6063 pipe and tube sizes with precise tolerances and high-quality surface finishes to meet your project needs.
Quick Specification
StandardASTM B210 / B241
UNS No.A96063
Pipe Size1/2" to 12" NB
TempersT4, T5, T6
ManufacturingExtruded / Seamless
AvailabilityStock Ready
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