EN 1.4923 (X22CrMoV12-1) Stainless Steel
EN 1.4923 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. 1.4923 is the EN numeric designation for this material. X22CrMoV12-1 is the EN chemical designation.
It has a moderately high embodied energy and can have a moderately high tensile strength among wrought martensitic stainless steels.
The properties of EN 1.4923 stainless 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 1.4923 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
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
12 to 21 %
Fatigue Strength
300 to 440 MPa 44 to 63 x 103 psi
Impact Strength: V-Notched Charpy
22 to 30 J 17 to 22 ft-lb
Poisson's Ratio
0.28
Reduction in Area
40 to 46 %
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
540 to 590 MPa 78 to 85 x 103 psi
Tensile Strength: Ultimate (UTS)
870 to 980 MPa 130 to 140 x 103 psi
Tensile Strength: Yield (Proof)
470 to 780 MPa 68 to 110 x 103 psi
Thermal Properties
Latent Heat of Fusion
270 J/g
Maximum Temperature: Corrosion
380 °C 720 °F
Maximum Temperature: Mechanical
740 °C 1360 °F
Melting Completion (Liquidus)
1450 °C 2650 °F
Melting Onset (Solidus)
1410 °C 2570 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
24 W/m-K 14 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.3 % IACS
Otherwise Unclassified Properties
Base Metal Price
8.0 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
2.9 kg CO2/kg material
Embodied Energy
41 MJ/kg 18 x 103 BTU/lb
Embodied Water
100 L/kg 12 gal/lb
Common Calculations
PREN (Pitting Resistance)
15
Resilience: Ultimate (Unit Rupture Work)
110 to 150 MJ/m3
Resilience: Unit (Modulus of Resilience)
570 to 1580 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
31 to 35 points
Strength to Weight: Bending
26 to 28 points
Thermal Diffusivity
6.5 mm2/s
Thermal Shock Resistance
30 to 34 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.4923 stainless steel is notable for including vanadium (V). Vanadium has a strong hardening effect, but this effect is particularly sensitive to the type of tempering.
| Fe | 83.5 to 87.1 | |
| Cr | 11 to 12.5 | |
| Mo | 0.8 to 1.2 | |
| Mn | 0.4 to 0.9 | |
| Ni | 0.3 to 0.8 | |
| V | 0.25 to 0.35 | |
| Si | 0 to 0.5 | |
| C | 0.18 to 0.24 | |
| P | 0 to 0.025 | |
| S | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10302: Creep resisting steels, nickel and cobalt alloys
EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Creep-Resistant Steels, Fujio Abe et al. (editors), 2008
Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010