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ACI-ASTM CB30 Steel vs. EN 1.4371 Stainless Steel

Both ACI-ASTM CB30 steel and EN 1.4371 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB30 steel and the bottom bar is EN 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 500
740 to 750
Tensile Strength: Yield (Proof), MPa 230
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 940
880
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.3
2.6
Embodied Energy, MJ/kg 33
38
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
250 to 300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
27
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 5.6
4.0
Thermal Shock Resistance, points 17
16

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 18 to 21
16 to 17.5
Copper (Cu), % 0 to 1.2
0 to 1.0
Iron (Fe), % 72.9 to 82
66.7 to 74.4
Manganese (Mn), % 0 to 1.0
6.0 to 8.0
Nickel (Ni), % 0 to 2.0
3.5 to 5.5
Nitrogen (N), % 0
0.15 to 0.25
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 0.015