EN 1.7362 (X12CrMo5) High-Chromium Steel
EN 1.7362 steel is an alloy steel formulated for primary forming into wrought products. 1.7362 is the EN numeric designation for this material. X12CrMo5 is the EN chemical designation.
It has a very high electrical conductivity among EN wrought alloy steels. In addition, it has a very high base cost and a moderately low thermal conductivity.
The properties of EN 1.7362 steel include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.7362 steel to: EN wrought alloy 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
150 to 180
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
21 to 22 %
Fatigue Strength
140 to 250 MPa 20 to 37 x 103 psi
Impact Strength: V-Notched Charpy
38 to 46 J 28 to 34 ft-lb
Poisson's Ratio
0.29
Shear Modulus
74 GPa 11 x 106 psi
Shear Strength
320 to 370 MPa 46 to 54 x 103 psi
Tensile Strength: Ultimate (UTS)
510 to 600 MPa 73 to 86 x 103 psi
Tensile Strength: Yield (Proof)
200 to 360 MPa 28 to 53 x 103 psi
Thermal Properties
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
510 °C 950 °F
Melting Completion (Liquidus)
1460 °C 2660 °F
Melting Onset (Solidus)
1420 °C 2590 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
40 W/m-K 23 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
8.1 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.4 % IACS
Otherwise Unclassified Properties
Base Metal Price
4.5 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
1.8 kg CO2/kg material
Embodied Energy
23 MJ/kg 10 x 103 BTU/lb
Embodied Water
69 L/kg 8.3 gal/lb
Common Calculations
PREN (Pitting Resistance)
6.9
Resilience: Ultimate (Unit Rupture Work)
90 to 110 MJ/m3
Resilience: Unit (Modulus of Resilience)
100 to 340 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 to 21 points
Strength to Weight: Bending
18 to 20 points
Thermal Diffusivity
11 mm2/s
Thermal Shock Resistance
14 to 17 points
Alloy Composition
Among alloy steels, the composition of EN 1.7362 steel is notable for including nitrogen (N) and containing a comparatively high amount of chromium (Cr). Nitrogen has a substantial strengthening effect, but may contribute to strain aging unless the steel is deoxidized with aluminum. Chromium is used to improve corrosion resistance and most mechanical properties (particularly at higher temperatures).
| Fe | 91.5 to 95.2 | |
| Cr | 4.0 to 6.0 | |
| Mo | 0.45 to 0.65 | |
| Mn | 0.3 to 0.6 | |
| Si | 0 to 0.5 | |
| Ni | 0 to 0.3 | |
| Cu | 0 to 0.3 | |
| C | 0.1 to 0.15 | |
| P | 0 to 0.020 | |
| N | 0 to 0.012 | |
| S | 0 to 0.0050 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10028-2: Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties
EN 10216-2: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
Creep-Resistant Steels, Fujio Abe et al. (editors), 2008
Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011
ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996
Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008
Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015