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EN 1.4378 Stainless Steel vs. ACI-ASTM CG12 Steel

Both EN 1.4378 stainless steel and ACI-ASTM CG12 steel are iron alloys. They have 87% of their average alloy composition in common. There are 28 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 1.4378 stainless steel and the bottom bar is ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 34
40
Fatigue Strength, MPa 340 to 550
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
550
Tensile Strength: Yield (Proof), MPa 430 to 970
220

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 910
1040
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 39
48
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 23
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
180
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
20
Strength to Weight: Bending, points 24 to 31
19
Thermal Shock Resistance, points 16 to 23
12

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.12
Chromium (Cr), % 17 to 19
20 to 23
Iron (Fe), % 61.2 to 69
60.3 to 70
Manganese (Mn), % 11.5 to 14.5
0 to 1.5
Nickel (Ni), % 2.3 to 3.7
10 to 13
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040