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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.

Iron (Fe) 75.9 to 82.4
Chromium (Cr) 11.5 to 13.5
Nickel (Ni) 4.5 to 6.5
Molybdenum (Mo) 1.5 to 2.5
Vanadium (V) 0.1 to 0.5
Manganese (Mn) 0 to 0.5
Silicon (Si) 0 to 0.5
Phosphorus (P) 0 to 0.040
Carbon (C) 0 to 0.030
Sulfur (S) 0 to 0.015
Titanium (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