AISI D2 tool steel
AISI D2 tool steel
(OP)
We have had good results from using the D2 material instead of EN39B tool steels in that corrosion resistance is higher we are now though having a problem with D2 in its toughness to cracking can anyone suggest a similar material to D2 but stronger overall ??





RE: AISI D2 tool steel
Alan M. Etzkorn

Product Engineer
Nixon Tool Co.
www.nixontool.com
RE: AISI D2 tool steel
I have used Crucible Specialty Metals for many years. They are typically very good for technical assistance as well. Depending on your application, Powdered Metals can be very useful. For example CPM M4 or CPM 3v have excellent compressive strength characteristics compared to D2.
www.crumetals.com
RE: AISI D2 tool steel
http://www.cartech.com
RE: AISI D2 tool steel
We have D2 parts/coponents that have been in service for over 30 years that operate at 600°F and are priodically cycled to 1000°F. We have had very little problems with it cracking. The wear we experienced was in extrusion dies with extremely high kaolin and TiO2 loaded polymer. We also have a number dies made for injection molding machines that have been in service for years.
RE: AISI D2 tool steel
RE: AISI D2 tool steel
Id agree with unclesyd. Many of the toughness problems I have seen with D2 are from improper heat treatment. Make sure your D2 is tempered 3 to 4 times before trying another steel. Before you try a Vanadis 4 or other type of powder steel try one of the 8% Chrome steels. These offer the same wear resistant properties as D2 but the toughness is much higher. Many of the can be secondary hardened too. They are also a lot cheaper than M4. Machinings easier too.
Regards
Richard
RE: AISI D2 tool steel
I don't have the paper anymore but there was an excellent study by Bethlehem Steel that presented the benefits of using the secondary hardening point on the tempering curve.
One point not mentioned about D2 is it is one of the most stable of the tool steel after the proper heat treatment. The dimensional changes during heat treatment is minimal.
RE: AISI D2 tool steel
RE: AISI D2 tool steel
It was also Triple Tempered according to the drawing
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Milkboy
RE: AISI D2 tool steel