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ASTM A204 Steel vs. EN 1.0308 Steel

Both ASTM A204 steel and EN 1.0308 steel are iron alloys.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is EN 1.0308 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
100 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
7.8 to 28
Fatigue Strength, MPa 200 to 220
140 to 200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330 to 360
230 to 260
Tensile Strength: Ultimate (UTS), MPa 520 to 590
360 to 440
Tensile Strength: Yield (Proof), MPa 290 to 330
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420 to 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
32 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
93 to 300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
13 to 16
Strength to Weight: Bending, points 18 to 20
14 to 16
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15 to 17
11 to 14