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ASTM A203 Steel vs. SAE-AISI P4 Steel

Both ASTM A203 steel and SAE-AISI P4 steel are iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM A203 steel and the bottom bar is SAE-AISI P4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 520 to 590
390 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 250
260
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
41
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
4.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
1.8
Embodied Energy, MJ/kg 21 to 23
23
Embodied Water, L/kg 50 to 52
68

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
14 to 70
Strength to Weight: Bending, points 18 to 20
15 to 45
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 15 to 17
13 to 64