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SAE-AISI D4 Steel vs. S32615 Stainless Steel

Both SAE-AISI D4 steel and S32615 stainless steel are iron alloys. They have 66% 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 S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
28
Fatigue Strength, MPa 310 to 920
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 460 to 1210
400
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
620
Tensile Strength: Yield (Proof), MPa 470 to 1540
250

Thermal Properties

Latent Heat of Fusion, J/g 270
370
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
24
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.3
4.4
Embodied Energy, MJ/kg 49
63
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 75
23
Strength to Weight: Bending, points 24 to 47
21
Thermal Shock Resistance, points 23 to 63
15

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.070
Chromium (Cr), % 11 to 13
16.5 to 19.5
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 80.6 to 86.3
46.4 to 57.9
Manganese (Mn), % 0 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.7 to 1.2
0.3 to 1.5
Nickel (Ni), % 0 to 0.3
19 to 22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
4.8 to 6.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0