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Crucible Steel REX® AAA Tungsten Type High Speed Steel, AISI T4

Category Metal , Ferrous Metal , Tool Steel
Manufacturer Crucible Steel
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel REX® AAA Tungsten Type High Speed Steel, AISI T4.pdf
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Material Notes:
Rex AAA combines high red hardness, moderate abrasion resistance, and good toughness. This grade is frequently used for more severe cutting applications than M2, such as machining stainless steels. Rex AAA makes an outstanding tool bit for general purpose applications.Rex AAA is only supplied as tool bits, already heat treated to about HRC 64/66.Information provided by Crucible Industries
Mechanical Properties Metric English Comments
Hardness, Rockwell C 64 - 66
64 - 66
Component Elements Properties Metric English Comments
Carbon, C 0.75 %
0.75 %
Chromium, Cr 4.0 %
4.0 %
Cobalt, Co 5.0 %
5.0 %
Iron, Fe 69.75 %
69.75 %
as balance
Manganese, Mn 0.30 %
0.30 %
Molybdenum, Mo 0.75 %
0.75 %
Silicon, Si 0.30 %
0.30 %
Tungsten, W 18 %
18 %
Vanadium, V 1.15 %
1.15 %
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