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ASTM A204 Steel vs. ASTM A588 Steel

Both ASTM A204 steel and ASTM A588 steel are iron alloys.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is ASTM A588 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
22
Fatigue Strength, MPa 200 to 220
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330 to 360
350
Tensile Strength: Ultimate (UTS), MPa 520 to 590
550
Tensile Strength: Yield (Proof), MPa 290 to 330
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250 to 260
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420 to 1430
1410 to 1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
43 to 44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.3 to 2.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5 to 1.6
Embodied Energy, MJ/kg 20
20 to 22
Embodied Water, L/kg 47
50 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
20
Strength to Weight: Bending, points 18 to 20
19
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15 to 17
16