EN 1.4116 (X50CrMoV15) Stainless Steel
EN 1.4116 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 1.4116 is the EN numeric designation for this material. X50CrMoV15 is the EN chemical designation.
It has a moderately low ductility among the wrought martensitic stainless steels in the database.
The graph bars on the material properties cards below compare EN 1.4116 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
Brinell Hardness
240
Elastic (Young's, Tensile) Modulus
200 GPa 28 x 106 psi
Elongation at Break
14 %
Fatigue Strength
240 MPa 35 x 103 psi
Poisson's Ratio
0.28
Rockwell B Hardness
88
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
450 MPa 66 x 103 psi
Tensile Strength: Ultimate (UTS)
750 MPa 110 x 103 psi
Tensile Strength: Yield (Proof)
430 MPa 62 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
390 °C 730 °F
Maximum Temperature: Mechanical
800 °C 1480 °F
Melting Completion (Liquidus)
1440 °C 2620 °F
Melting Onset (Solidus)
1400 °C 2550 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
30 W/m-K 17 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.1 % IACS
Otherwise Unclassified Properties
Base Metal Price
8.0 % relative
Density
7.7 g/cm3 480 lb/ft3
Embodied Carbon
2.5 kg CO2/kg material
Embodied Energy
36 MJ/kg 15 x 103 BTU/lb
Embodied Water
110 L/kg 13 gal/lb
Common Calculations
PREN (Pitting Resistance)
18
Resilience: Ultimate (Unit Rupture Work)
87 MJ/m3
Resilience: Unit (Modulus of Resilience)
470 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
27 points
Strength to Weight: Bending
24 points
Thermal Diffusivity
8.1 mm2/s
Thermal Shock Resistance
26 points
Alloy Composition
Among wrought stainless steels, the composition of EN 1.4116 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 | 81.3 to 85 | |
| Cr | 14 to 15 | |
| Mo | 0.5 to 0.8 | |
| C | 0.45 to 0.55 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 1.0 | |
| V | 0.1 to 0.2 | |
| N | 0 to 0.15 | |
| P | 0 to 0.040 | |
| S | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
Welding Metallurgy, 2nd ed., Sindo Kou, 2003
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
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
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010