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S38815 Stainless Steel vs. R04295 Alloy

S38815 stainless steel belongs to the iron alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 34
22
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 74
37
Tensile Strength: Ultimate (UTS), MPa 610
410
Tensile Strength: Yield (Proof), MPa 290
300

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Specific Heat Capacity, J/kg-K 500
260
Thermal Expansion, µm/m-K 15
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.0
Embodied Water, L/kg 140
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
84
Resilience: Unit (Modulus of Resilience), kJ/m3 220
430
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 22
13
Strength to Weight: Bending, points 21
14
Thermal Shock Resistance, points 15
40

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0.75 to 1.5
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 56.1 to 67
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0
Sulfur (S), % 0 to 0.020
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7