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SAE-AISI D4 Steel vs. S45500 Stainless Steel

Both SAE-AISI D4 steel and S45500 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
3.4 to 11
Fatigue Strength, MPa 310 to 920
570 to 890
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 460 to 1210
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
1370 to 1850
Tensile Strength: Yield (Proof), MPa 470 to 1540
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
17
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.8
Embodied Energy, MJ/kg 49
57
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 15
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
45 to 190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
48 to 65
Strength to Weight: Bending, points 24 to 47
35 to 42
Thermal Shock Resistance, points 23 to 63
48 to 64

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.050
Chromium (Cr), % 11 to 13
11 to 12.5
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 80.6 to 86.3
71.5 to 79.2
Manganese (Mn), % 0 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.7 to 1.2
0 to 0.5
Nickel (Ni), % 0 to 0.3
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4
Vanadium (V), % 0 to 1.0
0

Comparable Variants