AISI T15 TOOL STEEL BALLS

Super high speed tool steel tungsten steel AISI T15 balls, they are featured by high hardness and excellent wear resistance, even at high temperatures.
They show fair toughness, then they are not suitable to support high shocks stresses.
Applications
Special bearings when excellent wear resistence at high temperature is required.
Chemical composition
%C
%Si
%Mn
%Cr
%Mo
%Co
%V
%W
-
-
-
-
1.50-1.60
0.15-0.40
0.15-0.40
3.75-5.00
1.00 max
4.75-5.25
4.50-5.25
11.75-13.00
-
-
-
-
International standards
ITA
USA
GER
FRA
UK
RUS
CHN
JAP
130505 KU
T15
1.3202
Z160 WKCV
BT 15
-
W12Cr4V5Co5
SKH10
Physical / mechanical / thermal / electric / magnetic properties
Property
Symbol
U.o.M.
Type
Notes
Values
Density
δ
[g/cm3]
Physical
Room temp.
8.30
Young's modulus
E
[GPa]
Mechanical
-
218
Specific heat
c
[J/kg-K]
Thermal
Room temp.
461
Coefficient of linear thermal expansion
α
[10^-6/ºC]
Thermal
(ΔT=0-100°C)
9.5
Thermal conductivity
λ
[W/(m·K)]
Thermal
Room temp.
20.0
Electric resistivity
ρ
[Ω*m*10^-9]
Electric
-
650
Relative magnetic permeability
µ
-
Magnetic
Ferromagnetic
> 500
Technical data
Property
Type
U.o.M.
Values
U.o.M.
Values
Hardness
Mechanical
[HRC]
63 - 68
-
-
Ultimate tensile strength
Mechanical
[MPa]
3000 - 3500
[psix10^3]
435 - 507
Service temperature
Thermal
[ºC]
-40 / 540
[ºF]
-40 / 1004
Range
Diameters (min/max)
U.o.M.
Diameters (min/max)
U.o.M.
Precision grades
1.000 - 150.000
[mm]
3/64 - 6
["]
See section International Standards: ISO 3290-1 / DIN 5401 / AFBMA
Corrosion Resistance
T15 balls show a corrosion resistance slightly better than M50 high speed tool steel.
Revision n.4