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ACI-ASTM CE30 Steel vs. AISI 445 Stainless Steel

Both ACI-ASTM CE30 steel and AISI 445 stainless steel are iron alloys. They have 82% 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 CE30 steel and the bottom bar is AISI 445 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
25
Fatigue Strength, MPa 170
160
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
480
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
21
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
2.6
Embodied Energy, MJ/kg 49
38
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 28
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
98
Resilience: Unit (Modulus of Resilience), kJ/m3 240
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 3.6
5.6
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 26 to 30
19 to 21
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 55.1 to 66
74.9 to 80.7
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 8.0 to 11
0 to 0.6
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.012