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AWS ER90S-B3 vs. S39274 Stainless Steel

Both AWS ER90S-B3 and S39274 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ER90S-B3 and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 19
17
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 690
900
Tensile Strength: Yield (Proof), MPa 620
620

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.8
4.3
Embodied Energy, MJ/kg 24
60
Embodied Water, L/kg 60
180

Common Calculations

PREN (Pitting Resistance) 6.0
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
32
Strength to Weight: Bending, points 22
26
Thermal Diffusivity, mm2/s 11
4.2
Thermal Shock Resistance, points 20
25

Alloy Composition


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Carbon (C), % 0.070 to 0.12
0 to 0.030
Chromium (Cr), % 2.3 to 2.7
24 to 26
Copper (Cu), % 0 to 0.35
0.2 to 0.8
Iron (Fe), % 93.5 to 95.9
57 to 65.6
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.2
2.5 to 3.5
Nickel (Ni), % 0 to 0.2
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.4 to 0.7
0 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5
Residuals, % 0 to 0.5
0