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AWS E120C-K4 vs. AISI 303 Stainless Steel

Both AWS E120C-K4 and AISI 303 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 27 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 E120C-K4 and the bottom bar is AISI 303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
40 to 51
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 950
600 to 690
Tensile Strength: Yield (Proof), MPa 840
230 to 420

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 23
42
Embodied Water, L/kg 54
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
140 to 440
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 34
21 to 25
Strength to Weight: Bending, points 27
20 to 22
Thermal Diffusivity, mm2/s 11
4.4
Thermal Shock Resistance, points 28
13 to 15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 0.15 to 0.65
17 to 19
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 92.1 to 98.4
67.3 to 74.9
Manganese (Mn), % 0.75 to 2.3
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.65
0
Nickel (Ni), % 0.5 to 2.5
8.0 to 10
Phosphorus (P), % 0 to 0.025
0 to 0.2
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0.15 to 0.35
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0