Oil-well drilling, well applications, offshore drilling devices.
Alloy steel through hardened balls, they are featured by high toughness and wear/collision resistance. They are specifically indicated for drilling applications.
Applications
|
|---|
Chemical composition
%C
|
%Si
|
%Mn
|
%P
|
%S
|
%Mo
|
%V
|
-
|
-
|
-
|
-
|
-
|
|---|---|---|---|---|---|---|---|---|---|---|---|
0.40-0.55
|
0.90-1.20
|
0.30-0.50
|
0.030 max
|
0.030 max
|
0.30-0.60
|
0.50 max
|
-
|
-
|
-
|
-
|
-
|
International standards
ITA
|
USA
|
GER
|
FRA
|
UK
|
RUS
|
CHN
|
JAP
|
|---|---|---|---|---|---|---|---|
-
|
T41902
|
-
|
-
|
-
|
Si-Mo
|
5SiMoV
|
-
|
Physical / mechanical / thermal / electric / magnetic properties
Property
|
Symbol
|
U.o.M.
|
Type
|
Notes
|
Values
|
|---|---|---|---|---|---|
Density
|
d
|
[g/cm3]
|
Physical
|
Room temp.
|
7.72
|
Young's modulus
|
E
|
[GPa]
|
Mechanical
|
-
|
200
|
Specific heat
|
c
|
[J/kg-K]
|
Thermal
|
Room temp.
|
468
|
Coefficient of linear thermal expansion
|
a
|
[10^-6/ºC]
|
Thermal
|
(?T=0-100°C)
|
10.8
|
Thermal conductivity
|
?
|
[W/(m·K)]
|
Thermal
|
Room temp.
|
19.0
|
Electric resistivity
|
?
|
[O*m*10^-9]
|
Electric
|
-
|
165
|
Relative magnetic permeability
|
µ
|
-
|
Magnetic
|
Ferromagnetic
|
> 500
|
Technical data
Property
|
Type
|
U.o.M.
|
Values
|
U.o.M.
|
Values
|
|---|---|---|---|---|---|
Hardness
|
Mechanical
|
[HRC]
|
54 - 63
|
-
|
-
|
Ultimate tensile strength
|
Mechanical
|
[MPa]
|
2100 - 2200
|
[psix10^3]
|
305 - 320
|
Service temperature
|
Thermal
|
[ºC]
|
-40 / 500
|
[ºF]
|
-40 / 932
|
Range
Diameters (min/max)
|
U.o.M.
|
Diameters (min/max)
|
U.o.M.
|
Precision Grade (ISO 3290)
|
|---|---|---|---|---|
1.000 - 150.000
|
[mm]
|
3/64 - 6
|
["]
|
G10-20-25-28-40-60-100-200
|
Corrosion Resistance
|
|---|
Good corrosion resistance in alkaline solutions, fairish in contact with salts or industrial atmospheres, poor in contact with water and steam, they do not resist in contact with acid substances.
|