MakeItFrom.com
Menu (ESC)

SAE-AISI P21 Steel vs. EN 1.7380 Steel

Both SAE-AISI P21 steel and EN 1.7380 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is EN 1.7380 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 1130
540 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.8
Embodied Energy, MJ/kg 32
23
Embodied Water, L/kg 62
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
19 to 20
Strength to Weight: Bending, points 31
19
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 37
15 to 16

Alloy Composition

Carbon (C), % 0.18 to 0.22
0.080 to 0.14
Chromium (Cr), % 0 to 0.5
2.0 to 2.5
Cobalt (Co), % 1.1 to 1.3
0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 92.1 to 94.2
94.6 to 96.6
Manganese (Mn), % 0.35 to 0.72
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 3.9 to 4.3
0
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.15 to 0.25
0