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S30815 Stainless Steel vs. N08811 Stainless Steel

Both S30815 stainless steel and N08811 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S30815 stainless steel and the bottom bar is N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
33
Fatigue Strength, MPa 320
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 480
340
Tensile Strength: Ultimate (UTS), MPa 680
510
Tensile Strength: Yield (Proof), MPa 350
190

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
490
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1360
1360
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
30
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.3
5.3
Embodied Energy, MJ/kg 47
76
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 24
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 310
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 4.0
3.0
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.050 to 0.1
0.060 to 0.1
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
19 to 23
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 62.8 to 68.4
39.5 to 50.6
Manganese (Mn), % 0 to 0.8
0 to 1.5
Nickel (Ni), % 10 to 12
30 to 35
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.4 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6