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S44625 Stainless Steel vs. SAE-AISI D3 Steel

Both S44625 stainless steel and SAE-AISI D3 steel are iron alloys. They have 85% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S44625 stainless steel and the bottom bar is SAE-AISI D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
9.8 to 15
Fatigue Strength, MPa 240
310 to 940
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
74
Shear Strength, MPa 370
470 to 1220
Tensile Strength: Ultimate (UTS), MPa 590
770 to 2050
Tensile Strength: Yield (Proof), MPa 360
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
31
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
8.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 39
48
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 30
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
97 to 180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
28 to 74
Strength to Weight: Bending, points 20
24 to 47
Thermal Diffusivity, mm2/s 4.6
8.3
Thermal Shock Resistance, points 19
23 to 63

Alloy Composition

Carbon (C), % 0 to 0.010
2.0 to 2.4
Chromium (Cr), % 25 to 27.5
11 to 13.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 69.4 to 74.3
80.3 to 87
Manganese (Mn), % 0 to 0.4
0 to 0.6
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 0 to 0.5
0 to 0.3
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 0
0 to 1.0