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ASTM A36 Carbon Steel vs. EN 1.0070 Steel

Both ASTM A36 carbon steel and EN 1.0070 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is EN 1.0070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
9.1
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
440
Tensile Strength: Ultimate (UTS), MPa 480
740
Tensile Strength: Yield (Proof), MPa 290
350

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 50
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 14
7.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.7
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 44
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
56
Resilience: Unit (Modulus of Resilience), kJ/m3 220
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0 to 0.26
0
Iron (Fe), % 99.25 to 100
99.876 to 100
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0 to 0.040
0 to 0.055
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.050
0 to 0.055