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EN 1.6958 Steel vs. AWS E347

Both EN 1.6958 steel and AWS E347 are iron alloys. They have 73% 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 EN 1.6958 steel and the bottom bar is AWS E347.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 1140
580

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
16
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.7
Embodied Energy, MJ/kg 27
53
Embodied Water, L/kg 60
150

Common Calculations

PREN (Pitting Resistance) 2.9
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
21
Strength to Weight: Bending, points 31
20
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 39
15

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.080
Chromium (Cr), % 1.2 to 1.7
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 92.6 to 94.5
61.9 to 72.5
Manganese (Mn), % 0.2 to 0.5
0.5 to 2.5
Molybdenum (Mo), % 0.35 to 0.55
0 to 0.75
Nickel (Ni), % 3.3 to 3.8
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0 to 0.12
0