KAISER ALUMINUM TECHNICAL REFERENCE LIBRARY

KAISER ALUMINUM TECHNICAL REFERENCE LIBRARY No. 1022

Technical Data - ALLOY 4026

Call 1-800-USE-2011

Chemical Composition Limits								Others
Weight %	Si	Fe	Cu	Mg	Zn	Bi	Ti	Each	Total
Minimum	9.0	-	2.5	0.7	-	1.0	-	-	-
Maximum	11.5	0.5	3.5	1.4	0.10	2.5	0.05	0.05	0.15

Typical Mechanical Properties
	Tensile (.500" Dia. Specimen)							Hardness
Temper	Yield		Ultimate		Elongation/4D	Elastic Modulus		Rockwell "B" 100 kg 1/16" Ball
Temper	KSI	MPa	KSI	MPa	%	PSIx10⁶	GPa	Rockwell "B" 100 kg 1/16" Ball
T651	57	393	62	427	8.5	11.1	77	74
T8	53	365	60	414	8.5	11.1	77	74

Comparative Characteristics
Temper	Corrosion Resistance	Cold Workability^²	Machinability^²	Gall Resistance^²	Wear Resistance^²
	General^¹
T651	C	D	B	A	A
T8	C	D	B	A	A

1 Ratings A through E are relative ratings in decreasing order of merit, based on exposures to sodium chloride solution by intermittent spraying or immersion. Alloys with A and B ratings can be used in industrial and seacoast atmospheres without protection. Alloys with C, D and E ratings generally should be protected at least on faying surfaces.

2 Ratings A through D for Workability (cold), A through E for Machinability and A through C for Anodize Response, are relative ratings in decreasing order of merit.

Alloy Description

This alloy is used when high strength with wear and/or galling resistance is required. It can eliminate hard-coat anodizing in some applications. Typical applications include air compressor pistons and automotive transmission valve parts. It has good machining characteristics, producing small chips and good surface finish.

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