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AISI 422 Stainless Steel vs. ACI-ASTM CB30 Steel

Both AISI 422 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 422 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 330
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 910 to 1080
500
Tensile Strength: Yield (Proof), MPa 670 to 870
230

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
420
Maximum Temperature: Mechanical, °C 650
940
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1470
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.3
Embodied Energy, MJ/kg 44
33
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 17
20
Resilience: Unit (Modulus of Resilience), kJ/m3 1140 to 1910
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 38
18
Strength to Weight: Bending, points 26 to 30
18
Thermal Diffusivity, mm2/s 6.4
5.6
Thermal Shock Resistance, points 33 to 39
17

Alloy Composition

Carbon (C), % 0.2 to 0.25
0 to 0.3
Chromium (Cr), % 11 to 12.5
18 to 21
Copper (Cu), % 0
0 to 1.2
Iron (Fe), % 81.9 to 85.8
72.9 to 82
Manganese (Mn), % 0.5 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
0 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.040
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0