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ACI-ASTM CG3M Steel vs. AISI 415 Stainless Steel

Both ACI-ASTM CG3M steel and AISI 415 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG3M steel and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
17
Fatigue Strength, MPa 200
430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
900
Tensile Strength: Yield (Proof), MPa 270
700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1020
780
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.5
Embodied Energy, MJ/kg 56
35
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 31
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 4.1
6.4
Thermal Shock Resistance, points 13
33

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 18 to 21
11.5 to 14
Iron (Fe), % 58.9 to 70
77.8 to 84
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0.5 to 1.0
Nickel (Ni), % 9.0 to 13
3.5 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030