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S15500 Stainless Steel vs. AWS E308H

Both S15500 stainless steel and AWS E308H are iron alloys. They have 88% of their average alloy composition in common. There are 25 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 S15500 stainless steel and the bottom bar is AWS E308H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.8 to 16
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
620

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.2
Embodied Energy, MJ/kg 39
46
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 15
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 53
22
Strength to Weight: Bending, points 26 to 37
21
Thermal Diffusivity, mm2/s 4.6
4.2
Thermal Shock Resistance, points 30 to 50
16

Alloy Composition

Carbon (C), % 0 to 0.070
0.040 to 0.080
Chromium (Cr), % 14 to 15.5
18 to 21
Copper (Cu), % 2.5 to 4.5
0 to 0.75
Iron (Fe), % 71.9 to 79.9
62.9 to 72.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 3.5 to 5.5
9.0 to 11
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030