Designation by Standards
| Brand Name |
Ravne No. |
Mat. No. |
DIN |
EN |
AISI |
| PK924 |
924 |
1.4724 |
X10CrAl13 |
X10CrSiAl13 |
- |
Chemical Composition (in weight %)
| C |
Si |
Mn |
Cr |
Mo |
Ni |
V |
W |
Others |
| max. 0.12 |
1.05 |
max. 1.00 |
13.00 |
- |
- |
- |
- |
Al: 0.95 |
Description
Heat resistant stainless steel with excellent corrosion resistance.
Applications
Heat resistant up to temperature up to 850
oC, and also can be used in sulphur containing gas. Bearing and conveying components, heat resistant components for thermal boilers, etc.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10
3 x N/mm
2]: 210
Density [g/cm
3]: 7.7
Thermal conductivity [W/m.K]: 21.0
Electric resistivity [Ohm mm
2/m]: 0.90
Specific heat capacity[J/g.K]: 0.45
Coefficient of Linear Thermal Expansion 10-6 oC-1
| 20-200oC |
20-400oC |
20-600oC |
20-800oC |
| 11.0 |
11.5 |
12.5 |
13.5 |
Soft Annealing
Heat to 800-850
oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 192.
Hardening
Harden from a temperature of 940-980
oC followed by oil quenching or warm bath
approx. 400
oC. Hardness after quenching is 64-66 HRC.
Tempering
Tempering temperature: See the data bellow.
Tempering Temperature (oC) vs. Hardness (HRC)
| 100oC |
200oC |
300oC |
400oC |
500oC |
600oC |
| 64 |
62 |
60 |
57 |
53 |
42 |
Forging
Hot forming temperature: 1100-800
oC.
Machinability
Soft and ductile, PK924 can be easily machined using most standard practices. Experienced machinists comment that PK924 machines similarly to 4130 alloy steel.
Forms manufactured: Please see the
Dimensional Sales Program.
Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.
Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2011 by Metal Ravne. All rights reserved.
Contact our
Sales Office for more information.
