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AWS E630 vs. AWS E16-8-2

Both AWS E630 and AWS E16-8-2 are iron alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is AWS E630 and the bottom bar is AWS E16-8-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.0
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 1040
620

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 18
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
22
Strength to Weight: Bending, points 29
20
Thermal Diffusivity, mm2/s 4.5
4.2
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 16 to 16.8
14.5 to 16.5
Copper (Cu), % 3.3 to 4.0
0 to 0.75
Iron (Fe), % 71.6 to 75.9
68 to 76.5
Manganese (Mn), % 0.25 to 0.75
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.75
1.0 to 2.0
Nickel (Ni), % 4.5 to 5.0
7.5 to 9.5
Niobium (Nb), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030