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AWS E630 vs. S32654 Stainless Steel

Both AWS E630 and S32654 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E630 and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.0
45
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
82
Tensile Strength: Ultimate (UTS), MPa 1040
850

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
34
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.8
6.4
Embodied Energy, MJ/kg 40
87
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 18
57
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
29
Strength to Weight: Bending, points 29
25
Thermal Diffusivity, mm2/s 4.5
2.9
Thermal Shock Resistance, points 28
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 16 to 16.8
24 to 25
Copper (Cu), % 3.3 to 4.0
0.3 to 0.6
Iron (Fe), % 71.6 to 75.9
38.3 to 45.3
Manganese (Mn), % 0.25 to 0.75
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.75
7.0 to 8.0
Nickel (Ni), % 4.5 to 5.0
21 to 23
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050