PACE Technologies logo PACE Technologies best price guarantee logo



PACE Technologies metallographic abrasive blades sectioning consumables

Metallographic Aluminum Etchants

Aluminum alloys are designated as either wrought or cast. Wrought aluminum alloys are classified by the major alloying element

  • 1000 series pure aluminum (1050, 1060, 1199)
  • 2000 series aluminum copper alloys (2014. 2024, 2219)
  • 3000 series aluminum ma managese alloys (3003, 3004, 3102)
  • 4000 series aluminum silicon alloys (4041)
  • 5000 series aluminum magnesium alloys (5005, 5052, 5083, 5086, 5154, 5356, 5154, 5356, 5454)
  • 6000 series aluminum magnesium and silicon alloys (6060, 6061, 6063, 6066, 6070, 6082, 6105, 6162)
  • 7000 series aluminum zinc alloys (7005, 7022, 7068, 7072, 7075, 7079, 7116, 7129, 7178)
  • 8000 series aluminum lithium alloys

Cast aluminum alloys are classified similarly to wrought alloys, however, the 2nd and 3rd digit signify the percentage of aluminum

  • 1xx.x series are minimum 99% aluminium
  • 2xx.x series copper (201.0, 204.0, 242.0)
  • 3xx.x series silicon, copper and/or magnesium (319.0, 328.0, 328.0, 355.0, 356.0)
  • 4xx.x series silicon (433.3)
  • 5xx.x series magnesium (512.0, 514.0, 520.0, 535.0)
  • 7xx.x series zinc (705.0, 707.0, 710.0, 713.0, 771.0)
  • 8xx.x series lithium

The most common etchants for aluminum are Kellers etch and Kroll's reagent, however, there are hundreds of more specific etchants. A good resouce for additional etchants can be found with the etchant database provided by PACE Technologies:

http://database.metallographic.com/pace-etchant.php

Sample Preparation: Aluminum alloys must be properly prepared to reveal the true metallographic microstructure. A number of recommended procedures can be found at the following links:

http://www.metallographic.com/Metallographic-Preparation-Procedures/Aluminum-Description.htm

http://www.metallographic.com/Brochures/Met-Manual-2b.pdf

CAUTION: Safety is very important when etching. Be sure to wear the appropriate protective clothing and observe all WARNINGS on chemical manufacturers SDS (Safety Data Sheets). Also review COMMENTS Section for each etchant.

Recommended Etchants

Etchant

Conc.

Conditions

Comments

Kellers Etch
Distilled water
Nitric acid
Hydrochloric acid
Hydrofluoric acid

190 ml
5 ml
3 ml
2 ml

10-30 second immersion
Use fresh

For most aluminum and aluminum alloys

Methanol
Hydrochloric acid
Nitric acid
Hydrofluoric acid

25 ml
25 ml
25 ml
1 drop

10-60 seconds

Pure aluminum, aluminum-magnesium, and aluminum-magnesium-silicon alloys

Krolls Reagent
Distilled water
Nitric acid
Hydrofluoric acid

92 ml
6 ml
2 ml

15 seconds

Aluminum-copper alloys


Metallographic micrograph for Aluminum-silicon alloys
Aluminum-Silicon Alloy, Kellers etch, 200X


Return to top


PACE TECHNOLOGIES CONTACT


PACE Technologies
3601 E. 34th St.
Tucson, Arizona 85713
+1-520-882-6598
FAX +1-520-882-6599
email: pace@metallographic.com
www.metallographic.com


Information Requests

*Required Information

*Company:
*Name:
*E-mail:
Title:
*Address:
P.O. / Suite:
*City:
*State:
*Zip Code:
Country:
*Phone:
Fax:

Industry:

Process Type:

Send Equipment Quotes
Add my name to PACE Technologies mailing list
Send Product catalog
Send me my FREE MET MANUAL
Request a salesperson call
Add me to Newsletter Distribution


Metallographic
Consumables

Brochures:

For online
ordering
click here
Online Ordering
Abrasive Blades
Diamond Blades
Compression Mounting
Castable Mounting
Polishing Pads
Lapping Films
Diamond Disks
Composite Disks
Polycrystalline Diamond
Monocrystalline Diamond
Final Polishing Abrasives
Etchants
Consumables Catalog



Metallographic
Equipment

Brochures:

For specific
equipment quotes
click here
Quotes
Abrasive Cutters
Precision Wafering Saws
Compression Mounting Presses
Castable Vacuum Chamber
Manual Roll and Belt Grinders
Polishing Machines
Automated Polishing Heads
Vibratory Polisher



Metallographic
Analysis
Brochures:

For specific
instrument quotes
click here
Quotes

Microscopes
Microhardness Testers
Rockwell Hardness Testers
Brinell Hardness Testers
MacroVickers Hardness Tester
Image Analysis



Laboratory
Furniture
Brochures:

For specific
items quotes
click here
Quotes

Lab Benches
Microscope Benches
Fume Hood
Safety Cabinets
Specimen Storage Cabinet

Other Questions

Question To:
Enter Request Info. or Question:

Return to top


About Us | Site Map | Web Disclaimer | Terms and Conditions | Contact Us

Copyright 2006-2018
PACE Technologies ® - 3601 E. 34th St., Tucson, AZ 85713, USA
Telephone +1 520-882-6598 FAX +1 520-882-6599
All Rights Reserved


PACE Technologies facebook link Blog us on Tumblr Blog us on Tumblr PACE Technologies Google+ PACE Technologies Google+ PACE Technologies Google+