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SAE-AISI D3 Steel vs. EN 1.7221 Steel

Both SAE-AISI D3 steel and EN 1.7221 steel are iron alloys. They have 86% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D3 steel and the bottom bar is EN 1.7221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.8 to 15
11 to 17
Fatigue Strength, MPa 310 to 940
290 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
650 to 780
Tensile Strength: Yield (Proof), MPa 480 to 1550
430 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.5
Embodied Energy, MJ/kg 48
20
Embodied Water, L/kg 100
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
83 to 98
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 74
23 to 27
Strength to Weight: Bending, points 24 to 47
21 to 24
Thermal Diffusivity, mm2/s 8.3
12
Thermal Shock Resistance, points 23 to 63
19 to 23

Alloy Composition

Carbon (C), % 2.0 to 2.4
0.22 to 0.29
Chromium (Cr), % 11 to 13.5
0.8 to 1.2
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
96.8 to 98.3
Manganese (Mn), % 0 to 0.6
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0

Comparable Variants