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SAE-AISI D3 Steel vs. EN 1.7725 Steel

Both SAE-AISI D3 steel and EN 1.7725 steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 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 D3 steel and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.8 to 15
14
Fatigue Strength, MPa 310 to 940
390 to 550
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
830 to 1000
Tensile Strength: Yield (Proof), MPa 480 to 1550
610 to 860

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
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.8
Embodied Energy, MJ/kg 48
24
Embodied Water, L/kg 100
54

Common Calculations

PREN (Pitting Resistance) 13
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
110 to 130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 74
29 to 35
Strength to Weight: Bending, points 24 to 47
25 to 28
Thermal Diffusivity, mm2/s 8.3
11
Thermal Shock Resistance, points 23 to 63
24 to 29

Alloy Composition

Carbon (C), % 2.0 to 2.4
0.27 to 0.34
Chromium (Cr), % 11 to 13.5
1.3 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
95.7 to 97.5
Manganese (Mn), % 0 to 0.6
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
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
0.050 to 0.15

Comparable Variants