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EN 1.4150 Stainless Steel vs. EN 1.4458 Stainless Steel

Both EN 1.4150 stainless steel and EN 1.4458 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4150 stainless steel and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 270
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 730
510
Tensile Strength: Yield (Proof), MPa 430
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
30
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.4
Embodied Energy, MJ/kg 42
75
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 19
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 470
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 6.2
4.2
Thermal Shock Resistance, points 27
12

Alloy Composition

Carbon (C), % 0.45 to 0.6
0 to 0.030
Chromium (Cr), % 15 to 16.5
19 to 22
Copper (Cu), % 0
0 to 2.0
Iron (Fe), % 79 to 82.8
40.2 to 53
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.4
2.0 to 2.5
Nickel (Ni), % 0 to 0.4
26 to 30
Nitrogen (N), % 0.050 to 0.2
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.3 to 1.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.025
Vanadium (V), % 0.2 to 0.4
0