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ACI-ASTM CG12 Steel vs. AISI 305 Stainless Steel

Both ACI-ASTM CG12 steel and AISI 305 stainless steel are iron alloys. They have a very high 96% 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 AISI 305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34 to 45
Fatigue Strength, MPa 190
210 to 280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 550
580 to 710
Tensile Strength: Yield (Proof), MPa 220
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1040
540
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
3.2
Embodied Energy, MJ/kg 48
45
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 22
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
200 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 120
130 to 320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
20 to 25
Strength to Weight: Bending, points 19
20 to 23
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 12
13 to 15

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.12
Chromium (Cr), % 20 to 23
17 to 19
Iron (Fe), % 60.3 to 70
65.1 to 72.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 10 to 13
10.5 to 13
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030