CPM REX T-15® Powder Metal


CPM REX T15® is a super high speed steel made by the Crucible Particle Metallurgy (CPM®) process. It is a tungsten type high speed steel containing high vanadium for excellent abrasion resistance, and cobalt for good red hardness. CPM REX T15® is ideal for cutting difficult to machine materials where high frictional heating is encountered.

Analysis:

C CO CR MN MO NI P S SI V W
1.605.004.000.30 0.06 Min.0.304.9012.00

Size Availability:

Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • Standard

Applications:

BroachesEnd MillsForming Tools
HobsMilling CuttersShaper Cutters
Spade DrillsTaps

Designations:

AISI T15-US
CPM REX T15(HS)-US

TreatmentTemperature RangeCooling/QuenchingNotes
Forging2000-2100° FSlow cool.Do not forge below 1700
AnnealingAir or Furnace1600° F, hold 2 hours, slow cool 30° F per hour maximum to 1000° F. Air or Furnace cool.
Stress Relieving1100-1300° FAir or furnace cool.Hold 2 hours.
Preheating1500-1550° F1500-1550° F and equalize. A second preheat at 1800-1900° F is suggested for vacuum or atmosphere hardening.
Hardening2125-2250° FQuench in salt, oil or atmosphere to 1000-1100° F, equalize, then air cool to below 125° F or hand warm. The vacuum or atmosphere quench rate through 1850-1300° F range is critical to achieve optimum heat treat response.2125-2250° F. Standard recommendation to achieve Rc 66-68 is to use 225-2250° F.
Tempering(See Chart)Triple tempering required.
Data is typical and should not be construed as actual values for any category.
Applications and technical information require engineers and tool designers to exercise independent judgement.