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EN 1.4303 Stainless Steel vs. ACI-ASTM CB30 Steel

Both EN 1.4303 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have 88% 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 EN 1.4303 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
210
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 590 to 900
500
Tensile Strength: Yield (Proof), MPa 230 to 560
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 940
940
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.3
Embodied Energy, MJ/kg 46
33
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
18
Strength to Weight: Bending, points 20 to 26
18
Thermal Diffusivity, mm2/s 4.0
5.6
Thermal Shock Resistance, points 13 to 20
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.3
Chromium (Cr), % 17 to 19
18 to 21
Copper (Cu), % 0
0 to 1.2
Iron (Fe), % 64.8 to 72
72.9 to 82
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 11 to 13
0 to 2.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.040