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ACI-ASTM CG12 Steel vs. EN 1.4371 Stainless Steel

Both ACI-ASTM CG12 steel and EN 1.4371 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG12 steel and the bottom bar is EN 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
45 to 51
Fatigue Strength, MPa 190
290 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 550
740 to 750
Tensile Strength: Yield (Proof), MPa 220
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1040
880
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 18
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 48
38
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 22
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
270 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 120
250 to 300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.030
Chromium (Cr), % 20 to 23
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 60.3 to 70
66.7 to 74.4
Manganese (Mn), % 0 to 1.5
6.0 to 8.0
Nickel (Ni), % 10 to 13
3.5 to 5.5
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015