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EN 1.4150 Stainless Steel vs. EN 1.6958 Steel

Both EN 1.4150 stainless steel and EN 1.6958 steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, 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 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
16
Fatigue Strength, MPa 270
700
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460
700
Tensile Strength: Ultimate (UTS), MPa 730
1140
Tensile Strength: Yield (Proof), MPa 430
1070

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 840
450
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 23
47
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
5.0
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 42
27
Embodied Water, L/kg 120
60

Common Calculations

PREN (Pitting Resistance) 19
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 470
3050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
40
Strength to Weight: Bending, points 24
31
Thermal Diffusivity, mm2/s 6.2
13
Thermal Shock Resistance, points 27
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0.45 to 0.6
0.25 to 0.3
Chromium (Cr), % 15 to 16.5
1.2 to 1.7
Iron (Fe), % 79 to 82.8
92.6 to 94.5
Manganese (Mn), % 0 to 0.8
0.2 to 0.5
Molybdenum (Mo), % 0.2 to 0.4
0.35 to 0.55
Nickel (Ni), % 0 to 0.4
3.3 to 3.8
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 1.3 to 1.7
0.15 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0.2 to 0.4
0 to 0.12