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EN 1.4580 Stainless Steel vs. EN 1.6957 Steel

Both EN 1.4580 stainless steel and EN 1.6957 steel are iron alloys. They have 72% of their average alloy composition in common. There are 33 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 1.4580 stainless steel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
18
Fatigue Strength, MPa 210
530
Impact Strength: V-Notched Charpy, J 90
71
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
570
Tensile Strength: Ultimate (UTS), MPa 620
930
Tensile Strength: Yield (Proof), MPa 250
780

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 22
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
2.1
Embodied Energy, MJ/kg 60
29
Embodied Water, L/kg 150
60

Common Calculations

PREN (Pitting Resistance) 25
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
160
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
33
Strength to Weight: Bending, points 21
27
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 14
27

Alloy Composition

Carbon (C), % 0 to 0.080
0.22 to 0.32
Chromium (Cr), % 16.5 to 18.5
1.2 to 1.8
Iron (Fe), % 61.4 to 71
92.7 to 94.7
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 2.0 to 2.5
0.25 to 0.45
Nickel (Ni), % 10.5 to 13.5
3.4 to 4.0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.015
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15