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PACE Technologies Metallographic Preparation CLASS Chart icon

White Iron
Specimen Preparation (Class 3 Procedures)
Metallographic Class 3 sample preparation

White cast irons are hard and brittle wear-resistant metals consisting of pearlite and cementite. White cast irons are manufactured by chilling the surface of the cast mold in order to prevent the formation of graphite during solidification. White cast irons are used for train car wheels, brake shoes, shot blasting nozzles, mill liners, crushers, pump impellers and other abrasion resistant parts.

SECTIONING
MAXCUT Abrasive blade (MAX-D or MAX-VHS series)

MOUNTING
Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resins

POLISHING
Abrasive/surface Lubricant Force/ sample Speed
(Head/base)
Time Individual
Force mode
Central Force
mode
120 grit SiC paper
240 grit SiC paper*
Water
5-10 lbs 200/200 rpm Planar
1 min
  Metallographic central polishing force
360 grit SiC paper
600 grit SiC paper
800 grit SiC paper
1200 grit SiC paper
Water
5-10 lbs 200/200 rpm 1 min
1 min
1 min
1 min
Metallographic individual polishing force Metallographic central polishing force
1 um DIAMAT diamond
on GOLDPAD polishing pad
DIALUBE Purple
Extender
5-10 lbs 200/200 rpm 2 min Metallographic individual polishing force Metallographic central polishing force
0.05 um Nanometer alumina
on TRICOTE polishing pad
  5-10 lbs 100/100 rpm 30 sec Metallographic individual polishing force Metallographic central polishing force

*Required for central polishing force. Click here for more information on central vs. individual polishing force polishing.

Metallographic White Iron
White Iron - Hypo Eutectic, 1000X (DIC), etchant: Picral
White metal metallographic microstructure
White Iron - Hyper Eutectic, 200X (DIC), etchant: Picral

ETCHING

Common Etchants
PACE Technologies Recommended Etchants

PACE Technologies Etchant Database

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


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Tucson, Arizona 85713
+1-520-882-6598
FAX +1-520-882-6599
email: pace@metallographic.com
https://www.metallographic.com


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Metallographic
Consumables

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PACE TECHNOLOGIES® - 3601 E. 34th St., Tucson, AZ 85713, USA
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