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EN 1.4578 Stainless Steel vs. EN 1.6570 Steel

Both EN 1.4578 stainless steel and EN 1.6570 steel are iron alloys. They have 70% 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 1.4578 stainless steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
11 to 17
Fatigue Strength, MPa 200
500 to 660
Impact Strength: V-Notched Charpy, J 90
40 to 48
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 550
910 to 1130
Tensile Strength: Yield (Proof), MPa 200
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
440
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.7
1.7
Embodied Energy, MJ/kg 51
23
Embodied Water, L/kg 160
56

Common Calculations

PREN (Pitting Resistance) 25
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1520 to 3010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
32 to 40
Strength to Weight: Bending, points 19
27 to 31
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 12
27 to 33

Alloy Composition

Carbon (C), % 0 to 0.040
0.28 to 0.35
Chromium (Cr), % 16.5 to 17.5
1.0 to 1.4
Copper (Cu), % 3.0 to 3.5
0
Iron (Fe), % 62.3 to 68.5
94 to 96.2
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0.3 to 0.5
Nickel (Ni), % 10 to 11
1.6 to 2.1
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.015