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ACI-ASTM CE30 Steel vs. S31100 Stainless Steel

Both ACI-ASTM CE30 steel and S31100 stainless steel are iron alloys. They have a moderately high 94% 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 S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
4.5
Fatigue Strength, MPa 170
330
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 630
1000
Tensile Strength: Yield (Proof), MPa 310
710

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 460
470
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
3.1
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 28
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
40
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
36
Strength to Weight: Bending, points 21
29
Thermal Diffusivity, mm2/s 3.6
4.2
Thermal Shock Resistance, points 13
28

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.060
Chromium (Cr), % 26 to 30
25 to 27
Iron (Fe), % 55.1 to 66
63.6 to 69
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 8.0 to 11
6.0 to 7.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0 to 0.25