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SAE-AISI D4 Steel vs. S35140 Stainless Steel

Both SAE-AISI D4 steel and S35140 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 29 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 D4 steel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.4 to 15
34
Fatigue Strength, MPa 310 to 920
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 460 to 1210
460
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
690
Tensile Strength: Yield (Proof), MPa 470 to 1540
310

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
14
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.3
5.5
Embodied Energy, MJ/kg 49
78
Embodied Water, L/kg 100
190

Common Calculations

PREN (Pitting Resistance) 15
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
24
Strength to Weight: Bending, points 24 to 47
22
Thermal Diffusivity, mm2/s 8.3
3.7
Thermal Shock Resistance, points 23 to 63
16

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.1
Chromium (Cr), % 11 to 13
20 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
44.1 to 52.7
Manganese (Mn), % 0 to 0.6
1.0 to 3.0
Molybdenum (Mo), % 0.7 to 1.2
1.0 to 2.0
Nickel (Ni), % 0 to 0.3
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0