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AWS E630 vs. S64512 Stainless Steel

Both AWS E630 and S64512 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 E630 and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.0
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 1040
1140

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
28
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 14
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 40
47
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 18
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
40
Strength to Weight: Bending, points 29
31
Thermal Diffusivity, mm2/s 4.5
7.5
Thermal Shock Resistance, points 28
42

Alloy Composition

Carbon (C), % 0 to 0.050
0.080 to 0.15
Chromium (Cr), % 16 to 16.8
11 to 12.5
Copper (Cu), % 3.3 to 4.0
0
Iron (Fe), % 71.6 to 75.9
80.6 to 84.7
Manganese (Mn), % 0.25 to 0.75
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.75
1.5 to 2.0
Nickel (Ni), % 4.5 to 5.0
2.0 to 3.0
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0.25 to 0.4