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ASTM A372 Grade A Steel vs. EN 1.5503 Steel

Both ASTM A372 grade A steel and EN 1.5503 steel 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 (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade A steel and the bottom bar is EN 1.5503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
12 to 17
Fatigue Strength, MPa 190
180 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320
270 to 320
Tensile Strength: Ultimate (UTS), MPa 500
400 to 520
Tensile Strength: Yield (Proof), MPa 270
270 to 430

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
41 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 200
200 to 490
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
14 to 19
Strength to Weight: Bending, points 18
15 to 18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 16
12 to 15

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.3
0.16 to 0.2
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.3 to 99.85
98.4 to 99.239
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.025