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EN 1.4401 Stainless Steel vs. EN 1.6570 Steel

Both EN 1.4401 stainless steel and EN 1.6570 steel are iron alloys. They have 72% 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 1.4401 stainless steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
270 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 40
11 to 17
Fatigue Strength, MPa 200 to 320
500 to 660
Impact Strength: V-Notched Charpy, J 91 to 94
40 to 48
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 600 to 900
910 to 1130
Tensile Strength: Yield (Proof), MPa 230 to 570
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
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 3.8
1.7
Embodied Energy, MJ/kg 52
23
Embodied Water, L/kg 150
56

Common Calculations

PREN (Pitting Resistance) 26
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
1520 to 3010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
32 to 40
Strength to Weight: Bending, points 20 to 26
27 to 31
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 20
27 to 33

Alloy Composition

Carbon (C), % 0 to 0.070
0.28 to 0.35
Chromium (Cr), % 16.5 to 18.5
1.0 to 1.4
Iron (Fe), % 62.8 to 71.5
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 13
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

Comparable Variants