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EN 1.6570 Steel vs. AISI 422 Stainless Steel

Both EN 1.6570 steel and AISI 422 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6570 steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 340
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
15 to 17
Fatigue Strength, MPa 500 to 660
410 to 500
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 910 to 1130
910 to 1080
Tensile Strength: Yield (Proof), MPa 760 to 1060
670 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
650
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
3.1
Embodied Energy, MJ/kg 23
44
Embodied Water, L/kg 56
100

Common Calculations

PREN (Pitting Resistance) 2.5
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1520 to 3010
1140 to 1910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32 to 40
32 to 38
Strength to Weight: Bending, points 27 to 31
26 to 30
Thermal Diffusivity, mm2/s 11
6.4
Thermal Shock Resistance, points 27 to 33
33 to 39

Alloy Composition

Carbon (C), % 0.28 to 0.35
0.2 to 0.25
Chromium (Cr), % 1.0 to 1.4
11 to 12.5
Iron (Fe), % 94 to 96.2
81.9 to 85.8
Manganese (Mn), % 0.6 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0.3 to 0.5
0.9 to 1.3
Nickel (Ni), % 1.6 to 2.1
0.5 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3

Comparable Variants