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ACI-ASTM CH20 Steel vs. EN 1.4422 Stainless Steel

Both ACI-ASTM CH20 steel and EN 1.4422 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CH20 steel and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
17
Fatigue Strength, MPa 290
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 610
850
Tensile Strength: Yield (Proof), MPa 350
630

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 53
37
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 25
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
130
Resilience: Unit (Modulus of Resilience), kJ/m3 300
1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 3.7
4.3
Thermal Shock Resistance, points 15
31

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.020
Chromium (Cr), % 22 to 26
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 54.7 to 66
76.8 to 83.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
1.3 to 1.8
Nickel (Ni), % 12 to 15
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.0030