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ACI-ASTM CG12 Steel vs. EN 1.4941 Stainless Steel

Both ACI-ASTM CG12 steel and EN 1.4941 stainless steel are iron alloys. They have a moderately high 95% 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 ACI-ASTM CG12 steel and the bottom bar is EN 1.4941 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
39
Fatigue Strength, MPa 190
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 550
590
Tensile Strength: Yield (Proof), MPa 220
210

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
520
Maximum Temperature: Mechanical, °C 1040
940
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
3.3
Embodied Energy, MJ/kg 48
47
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 22
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 120
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 12
13

Alloy Composition

Boron (B), % 0
0.0015 to 0.0050
Carbon (C), % 0 to 0.12
0.040 to 0.080
Chromium (Cr), % 20 to 23
17 to 19
Iron (Fe), % 60.3 to 70
65.1 to 73.6
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 10 to 13
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.4 to 0.8