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EN 1.7233 Steel vs. ASTM A356 Grade 8

Both EN 1.7233 steel and ASTM A356 grade 8 are iron alloys. Their average alloy composition is basically identical. There are 31 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 EN 1.7233 steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 290
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 23
21
Fatigue Strength, MPa 270 to 530
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 700 to 960
630
Tensile Strength: Yield (Proof), MPa 380 to 780
390

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
38
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.0
Embodied Energy, MJ/kg 21
26
Embodied Water, L/kg 53
55

Common Calculations

PREN (Pitting Resistance) 3.3
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1630
390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 34
22
Strength to Weight: Bending, points 22 to 28
21
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 21 to 28
18

Alloy Composition

Carbon (C), % 0.39 to 0.45
0 to 0.2
Chromium (Cr), % 1.2 to 1.5
1.0 to 1.5
Iron (Fe), % 96.2 to 97.5
95.4 to 97.4
Manganese (Mn), % 0.4 to 0.7
0.5 to 0.9
Molybdenum (Mo), % 0.5 to 0.7
0.9 to 1.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0.2 to 0.6
Sulfur (S), % 0 to 0.035
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15