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EN 1.6957 Steel vs. EN 1.4587 Stainless Steel

Both EN 1.6957 steel and EN 1.4587 stainless steel are iron alloys. They have 43% 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 1.6957 steel and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
34
Fatigue Strength, MPa 530
200
Impact Strength: V-Notched Charpy, J 71
67
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 930
540
Tensile Strength: Yield (Proof), MPa 780
250

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
17
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
36
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.1
6.3
Embodied Energy, MJ/kg 29
87
Embodied Water, L/kg 60
230

Common Calculations

PREN (Pitting Resistance) 2.7
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
18
Strength to Weight: Bending, points 27
18
Thermal Diffusivity, mm2/s 13
4.5
Thermal Shock Resistance, points 27
13

Alloy Composition

Carbon (C), % 0.22 to 0.32
0 to 0.030
Chromium (Cr), % 1.2 to 1.8
24 to 26
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 92.7 to 94.7
32.7 to 41.9
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.45
4.0 to 5.0
Nickel (Ni), % 3.4 to 4.0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0070
0 to 0.025
Vanadium (V), % 0.050 to 0.15
0