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AWS E630 vs. EN 1.8958 Steel

Both AWS E630 and EN 1.8958 steel are iron alloys. They have 76% of their average alloy composition in common. There are 24 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 EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 1040
430

Thermal Properties

Latent Heat of Fusion, J/g 280
250
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
46
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
19
Embodied Water, L/kg 140
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
15
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 28
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.16
Chromium (Cr), % 16 to 16.8
0.35 to 0.85
Copper (Cu), % 3.3 to 4.0
0.2 to 0.6
Iron (Fe), % 71.6 to 75.9
96.5 to 99.3
Manganese (Mn), % 0.25 to 0.75
0.15 to 0.7
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 4.5 to 5.0
0 to 0.7
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.040