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R30556 Alloy vs. N08811 Stainless Steel

Both R30556 alloy and N08811 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is R30556 alloy and the bottom bar is N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
33
Fatigue Strength, MPa 320
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 550
340
Tensile Strength: Ultimate (UTS), MPa 780
510
Tensile Strength: Yield (Proof), MPa 350
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
490
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1330
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
12
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 70
30
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.7
5.3
Embodied Energy, MJ/kg 130
76
Embodied Water, L/kg 300
200

Common Calculations

PREN (Pitting Resistance) 40
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
130
Resilience: Unit (Modulus of Resilience), kJ/m3 290
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 2.9
3.0
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0.15 to 0.6
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0.060 to 0.1
Chromium (Cr), % 21 to 23
19 to 23
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 20.4 to 38.2
39.5 to 50.6
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 4.0
0
Nickel (Ni), % 19 to 22.5
30 to 35
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.2 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tantalum (Ta), % 0.3 to 1.3
0
Titanium (Ti), % 0
0.15 to 0.6
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0