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AISI 314 Stainless Steel vs. ACI-ASTM CB30 Steel

Both AISI 314 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have 74% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 314 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 590
500
Tensile Strength: Yield (Proof), MPa 230
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 4.3
2.3
Embodied Energy, MJ/kg 62
33
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 25
20
Resilience: Unit (Modulus of Resilience), kJ/m3 130
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.9
5.6
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.3
Chromium (Cr), % 23 to 26
18 to 21
Copper (Cu), % 0
0 to 1.2
Iron (Fe), % 46.7 to 56.5
72.9 to 82
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 19 to 22
0 to 2.0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.5 to 3.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040