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ACI-ASTM CG3M Steel vs. N08904 Stainless Steel

Both ACI-ASTM CG3M steel and N08904 stainless steel are iron alloys. They have 81% 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 CG3M steel and the bottom bar is N08904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
38
Fatigue Strength, MPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 580
540
Tensile Strength: Yield (Proof), MPa 270
240

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 20
32
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.1
5.8
Embodied Energy, MJ/kg 56
79
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 31
37
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
170
Resilience: Unit (Modulus of Resilience), kJ/m3 190
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 4.1
3.1
Thermal Shock Resistance, points 13
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 18 to 21
19 to 23
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 58.9 to 70
38.8 to 53
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
4.0 to 5.0
Nickel (Ni), % 9.0 to 13
23 to 28
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.035