Chemical composition Element Limit in wt percent Silicon Si 0.40–0.80 Iron Fe ≤0.70 Copper Cu 0.15–0.40 Manganese Mn ≤0.15 Magnesium Mg 0.80–1.20 Chromium Cr 0.04–0.35 Zinc Zn ≤0.25 Titanium Ti ≤0.15 Other elements each ≤0.05 Other elements total ≤0.15 Aluminum Al Balance

Mechanical properties by temper Temper Condition or thickness Rm MPa Rp0.2 MPa Elongation % Basis O Annealed 124 55 25–26 Typical sheet [4] T4 Natural aging 241 145 22–24 Typical sheet [4] T451 Natural aging plus stretching 241 145 25 Typical plate family [3] T6 Artificial aging 310 276 17 Typical sheet/plate [3] T651 Artificial aging plus stretching 310 276 17 Typical sheet/plate [3]

Application fields Machined machine bases, mounting plates and industrial fixtures. Welded transport equipment and general structural assemblies. Marine and outdoor hardware requiring corrosion resistance. Tooling, jigs and lightweight equipment plates.

Chemical composition Element Limit in wt percent Silicon Si 0.40–0.80 Iron Fe ≤0.70 Copper Cu 0.15–0.40 Manganese Mn ≤0.15 Magnesium Mg 0.80–1.20 Chromium Cr 0.04–0.35 Zinc Zn ≤0.25 Titanium Ti ≤0.15 Other elements each ≤0.05 Other elements total ≤0.15 Aluminum Al Balance

Mechanical properties by temper Temper Condition or thickness Rm MPa Rp0.2 MPa Elongation % Basis O Annealed 124 55 25–26 Typical sheet [4] T4 Natural aging 241 145 22–24 Typical sheet [4] T451 Natural aging plus stretching 241 145 25 Typical plate family [3] T6 Artificial aging 310 276 17 Typical sheet/plate [3] T651 Artificial aging plus stretching 310 276 17 Typical sheet/plate [3]

Application fields Machined machine bases, mounting plates and industrial fixtures. Welded transport equipment and general structural assemblies. Marine and outdoor hardware requiring corrosion resistance. Tooling, jigs and lightweight equipment plates.

6061 Aluminum Tube/Pipe

Grade: 6061

Size:

Extruded: 6mm*1mm-400mm*40mm

Seamless: 70mm*10mm-270mm*60mm

Forged: 120mm*20mm-1200mm*200mm

Standard: ASTM, AMS, BS etc.

6061 is a heat-treatable aluminum magnesium silicon alloy widely used for general engineering plate. It combines moderate strength, good corrosion resistance and useful weldability with broad commercial availability. The annealed condition offers good forming capability, while T6 and stretch stress relieved T651 provide higher strength for machined components. Welding locally reduces strength, so welded designs must consider the heat affected zone. It is a practical choice for structural parts, fixtures and transport equipment.

Chemical composition

Element	Limit in wt percent
Silicon Si	0.40–0.80
Iron Fe	≤0.70
Copper Cu	0.15–0.40
Manganese Mn	≤0.15
Magnesium Mg	0.80–1.20
Chromium Cr	0.04–0.35
Zinc Zn	≤0.25
Titanium Ti	≤0.15
Other elements each	≤0.05
Other elements total	≤0.15
Aluminum Al	Balance

Mechanical properties by temper

Temper	Condition or thickness	Rm MPa	Rp0.2 MPa	Elongation %	Basis
O	Annealed	124	55	25–26	Typical sheet [4]
T4	Natural aging	241	145	22–24	Typical sheet [4]
T451	Natural aging plus stretching	241	145	25	Typical plate family [3]
T6	Artificial aging	310	276	17	Typical sheet/plate [3]
T651	Artificial aging plus stretching	310	276	17	Typical sheet/plate [3]

Application fields

Machined machine bases, mounting plates and industrial fixtures.
Welded transport equipment and general structural assemblies.
Marine and outdoor hardware requiring corrosion resistance.
Tooling, jigs and lightweight equipment plates.

Introduction

Specification

Chemical composition

Element	Limit in wt percent
Silicon Si	0.40–0.80
Iron Fe	≤0.70
Copper Cu	0.15–0.40
Manganese Mn	≤0.15
Magnesium Mg	0.80–1.20
Chromium Cr	0.04–0.35
Zinc Zn	≤0.25
Titanium Ti	≤0.15
Other elements each	≤0.05
Other elements total	≤0.15
Aluminum Al	Balance

Mechanical

Mechanical properties by temper

Temper	Condition or thickness	Rm MPa	Rp0.2 MPa	Elongation %	Basis
O	Annealed	124	55	25–26	Typical sheet [4]
T4	Natural aging	241	145	22–24	Typical sheet [4]
T451	Natural aging plus stretching	241	145	25	Typical plate family [3]
T6	Artificial aging	310	276	17	Typical sheet/plate [3]
T651	Artificial aging plus stretching	310	276	17	Typical sheet/plate [3]