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EN 1.4422 Stainless Steel vs. ACI-ASTM CG8M Steel

Both EN 1.4422 stainless steel and ACI-ASTM CG8M steel are iron alloys. They have 83% 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 1.4422 stainless steel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 380
280
Impact Strength: V-Notched Charpy, J 110
110
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 850
550
Tensile Strength: Yield (Proof), MPa 630
300

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 760
1020
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.1
Embodied Energy, MJ/kg 37
56
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 17
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
19
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 4.3
4.3
Thermal Shock Resistance, points 31
12

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 11 to 13
18 to 21
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 76.8 to 83.5
58.8 to 70
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.3 to 1.8
3.0 to 4.0
Nickel (Ni), % 4.0 to 5.0
9.0 to 13
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.0030
0 to 0.040