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SAE-AISI D4 Steel vs. S34565 Stainless Steel

Both SAE-AISI D4 steel and S34565 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 29 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 D4 steel and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.4 to 15
39
Fatigue Strength, MPa 310 to 920
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 460 to 1210
610
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
900
Tensile Strength: Yield (Proof), MPa 470 to 1540
470

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
12
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.3
5.3
Embodied Energy, MJ/kg 49
73
Embodied Water, L/kg 100
210

Common Calculations

PREN (Pitting Resistance) 15
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 75
32
Strength to Weight: Bending, points 24 to 47
26
Thermal Diffusivity, mm2/s 8.3
3.2
Thermal Shock Resistance, points 23 to 63
22

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.030
Chromium (Cr), % 11 to 13
23 to 25
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
43.2 to 51.6
Manganese (Mn), % 0 to 0.6
5.0 to 7.0
Molybdenum (Mo), % 0.7 to 1.2
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
16 to 18
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0 to 1.0
0