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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.

Iron (Fe) 83.5 to 87.1
Chromium (Cr) 11 to 12.5
Molybdenum (Mo) 0.8 to 1.2
Manganese (Mn) 0.4 to 0.9
Nickel (Ni) 0.3 to 0.8
Vanadium (V) 0.25 to 0.35
Silicon (Si) 0 to 0.5
Carbon (C) 0.18 to 0.24
Phosphorus (P) 0 to 0.025
Sulfur (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