MakeItFrom.com
Menu (ESC)

SAE-AISI P21 Steel vs. AWS E383

Both SAE-AISI P21 steel and AWS E383 are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is AWS E383.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 1130
580

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
12
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
37
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.3
6.4
Embodied Energy, MJ/kg 32
89
Embodied Water, L/kg 62
240

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
20
Strength to Weight: Bending, points 31
19
Thermal Diffusivity, mm2/s 11
3.1
Thermal Shock Resistance, points 37
15

Alloy Composition

Carbon (C), % 0.18 to 0.22
0 to 0.030
Chromium (Cr), % 0 to 0.5
26.5 to 29
Cobalt (Co), % 1.1 to 1.3
0
Copper (Cu), % 0 to 0.25
0.6 to 1.5
Iron (Fe), % 92.1 to 94.2
28.8 to 39.2
Manganese (Mn), % 0.35 to 0.72
0.5 to 2.5
Molybdenum (Mo), % 0
3.2 to 4.2
Nickel (Ni), % 3.9 to 4.3
30 to 33
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.4
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0.15 to 0.25
0