EN 1.4415 (X2CrNiMoV13-5-2) Stainless Steel
EN 1.4415 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. 1.4415 is the EN numeric designation for this material. X2CrNiMoV13-5-2 is the EN chemical designation.
It has a fairly high embodied energy among wrought martensitic stainless steels. In addition, it has a fairly high base cost and a moderately low thermal conductivity.
The properties of EN 1.4415 stainless steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.4415 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
200 GPa 29 x 106 psi
Elongation at Break
17 to 20 %
Fatigue Strength
470 to 510 MPa 68 to 74 x 103 psi
Impact Strength: V-Notched Charpy
91 to 110 J 67 to 84 ft-lb
Poisson's Ratio
0.28
Shear Modulus
77 GPa 11 x 106 psi
Shear Strength
520 to 570 MPa 75 to 83 x 103 psi
Tensile Strength: Ultimate (UTS)
830 to 930 MPa 120 to 130 x 103 psi
Tensile Strength: Yield (Proof)
730 to 840 MPa 110 to 120 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
390 °C 740 °F
Maximum Temperature: Mechanical
790 °C 1450 °F
Melting Completion (Liquidus)
1460 °C 2660 °F
Melting Onset (Solidus)
1420 °C 2580 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
19 W/m-K 11 BTU/h-ft-°F
Thermal Expansion
9.9 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.8 % IACS
Otherwise Unclassified Properties
Base Metal Price
13 % relative
Density
7.9 g/cm3 490 lb/ft3
Embodied Carbon
3.6 kg CO2/kg material
Embodied Energy
51 MJ/kg 22 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
150 to 160 MJ/m3
Resilience: Unit (Modulus of Resilience)
1350 to 1790 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
29 to 33 points
Strength to Weight: Bending
25 to 27 points
Thermal Diffusivity
5.1 mm2/s
Thermal Shock Resistance
30 to 34 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.4415 stainless steel is notable for including vanadium (V) and titanium (Ti). Vanadium has a strong hardening effect, but this effect is particularly sensitive to the type of tempering. Titanium is used to broadly improve mechanical properties.
| Fe | 75.9 to 82.4 | |
| Cr | 11.5 to 13.5 | |
| Ni | 4.5 to 6.5 | |
| Mo | 1.5 to 2.5 | |
| V | 0.1 to 0.5 | |
| Mn | 0 to 0.5 | |
| Si | 0 to 0.5 | |
| P | 0 to 0.040 | |
| C | 0 to 0.030 | |
| S | 0 to 0.015 | |
| Ti | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010