416
1.4005 - X 12 CrS 13
Z 12 CF 13
AFNOR
General characteristics
Quench-hardenable ferro-martensitic stainless steel with enhanced machinability and good chip breakage.
Machinability
Typical applications are A wide variety of screw machine parts including nuts, bolts, screws, gears and pinions, valve Quench hardening
trim, shafts and axles.
Polishing
Magnetic
Age hardening
Welding
AISI
DIN
MIG,TIG,WIG
Arc
Resistance
Autogenous
Laser
C
0.08 - 0.15
Si
<1
Density
Electrical resistivity
r [µW·m]
0.6
Specific heat
Thermal conductivity
Cp [J·kg-1·K-1]
460
l [W·m-1·K-1]
30
Coefficient of thermal expansion
100 °C
10.5
a [10-6·°C-1] between 20°C and
300 °C
400 °C
500 °C
600 °C
11.5
12
12
Mechanical properties
200 °C
11
Yield strength
Rp0.2 [MPa]
State
Annealed
Quench Temp.
20°C
275
≥ 450
no
no
no
no
no
Chemical composition according to DIN (%)
P
S
Cr
Mo
< 0.04
0.15 - 0.35
12 - 14
< 0.6
Physical properties
Mn
< 1.5
r [kg·m-3]
7'700
+
yes
+
yes
no
100°C
200°C
700 °C
Tensile
strength
Rm [MPa]
515
650 - 850
300°C
Elastic modulus
E [GPa]
215 à 20°C
Elongation
A5 [%]
≥ 30
≥ 12
Vickers
Hardness
[HV]
≥ 155
240
Thermal treatments
Type
Annealed
Quench harden.
Tempering
Temperature
[°C]
815 - 900
950 - 1000
680 - 780
Time
[minutes]
30
Protective atmosphere
Cooling
30°C/h until 600°C then air
Air (quickly) or oil
Air
60
Surface treatments
Type
Pickling
Pickling
Solution
Remarks
20- 50 % HNO3
Hot or at room temperature
20- 50 % HNO3 + 2 - 6 % Na2Cr2O7.2H2O
Less aggressive than above.
Fabrication characteristics
All hot work procedures should commence following uniform heating to 1150°C - 1230°C and cool in air. Hot work below 930°C may result in
cracking. This alloy will accept only minor cold working. Severe deformation will result in cracking. Moreover, the temperature range from 425°C to
525°C must be avoided, because even if this steel becomes very hard (Rm ≈ 1500MPa), its impact resistance becomes very low.
Welding, brazing and soldering
Welding of any type is not recommended, as the high sulfur content creates porosity.
Available products
On demand.
The indications are basically founded on our actual know-how. This technical data sheet is without
commitment and not contracted.