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AWS E630 vs. AWS E410

Both AWS E630 and AWS E410 are iron alloys. Both are furnished in the post-weld heat treated (PWHT) condition. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS E630 and the bottom bar is AWS E410.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 1040
580

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 17
28
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 40
28
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 18
13
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
21
Strength to Weight: Bending, points 29
20
Thermal Diffusivity, mm2/s 4.5
7.5
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 16 to 16.8
11 to 13.5
Copper (Cu), % 3.3 to 4.0
0 to 0.75
Iron (Fe), % 71.6 to 75.9
82.2 to 89
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.75
Nickel (Ni), % 4.5 to 5.0
0 to 0.7
Niobium (Nb), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.030