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AISI 420 Stainless Steel vs. EN 1.6570 Steel

Both AISI 420 stainless steel and EN 1.6570 steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 420 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 190
190
Elongation at Break, % 8.0 to 15
11 to 17
Fatigue Strength, MPa 220 to 670
500 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
910 to 1130
Tensile Strength: Yield (Proof), MPa 380 to 1310
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 620
440
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
3.9
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.7
Embodied Energy, MJ/kg 28
23
Embodied Water, L/kg 100
56

Common Calculations

PREN (Pitting Resistance) 14
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
1520 to 3010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
32 to 40
Strength to Weight: Bending, points 22 to 41
27 to 31
Thermal Diffusivity, mm2/s 7.3
11
Thermal Shock Resistance, points 25 to 62
27 to 33

Alloy Composition

Carbon (C), % 0.15 to 0.4
0.28 to 0.35
Chromium (Cr), % 12 to 14
1.0 to 1.4
Iron (Fe), % 82.3 to 87.9
94 to 96.2
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.5
Nickel (Ni), % 0 to 0.75
1.6 to 2.1
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants