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AISI 440B Stainless Steel vs. R60802 Alloy

AISI 440B stainless steel belongs to the iron alloys classification, while R60802 alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is R60802 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
98
Elongation at Break, % 3.0 to 18
22
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
36
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
430
Tensile Strength: Yield (Proof), MPa 430 to 1860
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 23
22
Thermal Expansion, µm/m-K 10
6.0

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.5
Embodied Water, L/kg 120
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
85
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 70
18
Strength to Weight: Bending, points 24 to 45
19
Thermal Diffusivity, mm2/s 6.1
12
Thermal Shock Resistance, points 27 to 70
53

Alloy Composition

Carbon (C), % 0.75 to 1.0
0
Chromium (Cr), % 16 to 18
0.050 to 0.15
Iron (Fe), % 78.2 to 83.3
0.070 to 0.2
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
0.030 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.2 to 1.7
Zirconium (Zr), % 0
97.8 to 98.7
Residuals, % 0
0 to 0.11