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AWS E430 vs. S44627 Stainless Steel

Both AWS E430 and S44627 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E430 and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
24
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 500
490

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
14
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
2.9
Embodied Energy, MJ/kg 31
41
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 18
30
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 6.7
4.6
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.010
Chromium (Cr), % 15 to 18
25 to 27.5
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 77.8 to 85
69.2 to 74.2
Manganese (Mn), % 0 to 1.0
0 to 0.4
Molybdenum (Mo), % 0 to 0.75
0.75 to 1.5
Nickel (Ni), % 0 to 0.6
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.9
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020