EN 1.3543 (X108CrMo17) Stainless Bearing Steel
EN 1.3543 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the spheroidized condition. 1.3543 is the EN numeric designation for this material. X108CrMo17 is the EN chemical designation.
It has a moderately low thermal conductivity and a moderately low tensile strength among wrought martensitic stainless steels.
The graph bars on the material properties cards below compare EN 1.3543 stainless steel to: wrought martensitic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
220
Elastic (Young's, Tensile) Modulus
200 GPa 28 x 106 psi
Poisson's Ratio
0.28
Shear Modulus
76 GPa 11 x 106 psi
Tensile Strength: Ultimate (UTS)
730 MPa 110 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
390 °C 730 °F
Maximum Temperature: Mechanical
870 °C 1600 °F
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1390 °C 2530 °F
Specific Heat Capacity
480 J/kg-K 0.12 BTU/lb-°F
Thermal Conductivity
22 W/m-K 13 BTU/h-ft-°F
Thermal Expansion
10 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.0 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.0 % relative
Density
7.7 g/cm3 480 lb/ft3
Embodied Carbon
2.3 kg CO2/kg material
Embodied Energy
32 MJ/kg 14 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
27 points
Strength to Weight: Bending
24 points
Thermal Diffusivity
6.1 mm2/s
Thermal Shock Resistance
26 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.3543 stainless steel is notable for containing a comparatively high amount of carbon (C). Carbon is used to increase strength at the cost of a decrease in toughness and corrosion resistance.
| Fe | 79.1 to 83.6 | |
| Cr | 16 to 18 | |
| C | 1.0 to 1.2 | |
| Mo | 0.4 to 0.8 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 1.0 | |
| P | 0 to 0.040 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ISO 683-17: Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels
Corrosion of Stainless Steels, A. John Sedriks, 1996