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EN 1.4150 (X53CrSiMoVN16-2) Stainless Steel

EN 1.4150 stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 1.4150 is the EN numeric designation for this material. X53CrSiMoVN16-2 is the EN chemical designation.

It has a moderately low electrical conductivity among wrought martensitic stainless steels. In addition, it has a moderately high embodied energy and a moderately low thermal conductivity.

The graph bars on the material properties cards below compare EN 1.4150 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

220

Elastic (Young's, Tensile) Modulus

190 GPa 28 x 106 psi

Elongation at Break

20 %

Fatigue Strength

270 MPa 40 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

76 GPa 11 x 106 psi

Shear Strength

460 MPa 66 x 103 psi

Tensile Strength: Ultimate (UTS)

730 MPa 110 x 103 psi

Tensile Strength: Yield (Proof)

430 MPa 62 x 103 psi

Thermal Properties

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

390 °C 740 °F

Maximum Temperature: Mechanical

840 °C 1540 °F

Melting Completion (Liquidus)

1420 °C 2590 °F

Melting Onset (Solidus)

1380 °C 2520 °F

Specific Heat Capacity

490 J/kg-K 0.12 BTU/lb-°F

Thermal Conductivity

23 W/m-K 13 BTU/h-ft-°F

Thermal Expansion

10 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

8.5 % relative

Density

7.6 g/cm3 480 lb/ft3

Embodied Carbon

2.8 kg CO2/kg material

Embodied Energy

42 MJ/kg 18 x 103 BTU/lb

Embodied Water

120 L/kg 14 gal/lb

Common Calculations

PREN (Pitting Resistance)

19

Resilience: Ultimate (Unit Rupture Work)

120 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

6.2 mm2/s

Thermal Shock Resistance

27 points

Alloy Composition

Among wrought stainless steels, the composition of EN 1.4150 stainless steel is notable for including vanadium (V) and containing a comparatively high amount of silicon (Si). Vanadium has a strong hardening effect, but this effect is particularly sensitive to the type of tempering. Silicon content is typically governed by metallurgical processing concerns, but it can also be added for the purpose of improving oxidation resistance.

Iron (Fe) 79 to 82.8
Chromium (Cr) 15 to 16.5
Silicon (Si) 1.3 to 1.7
Carbon (C) 0.45 to 0.6
Manganese (Mn) 0 to 0.8
Molybdenum (Mo) 0.2 to 0.4
Vanadium (V) 0.2 to 0.4
Nickel (Ni) 0 to 0.4
Nitrogen (N) 0.050 to 0.2
Phosphorus (P) 0 to 0.030
Sulfur (S) 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

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