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EN 1.7767 Steel vs. AWS E3155

Both EN 1.7767 steel and AWS E3155 are iron alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 EN 1.7767 steel and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20
23
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
81
Tensile Strength: Ultimate (UTS), MPa 670 to 690
770

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
70
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.4
7.7
Embodied Energy, MJ/kg 33
110
Embodied Water, L/kg 64
300

Common Calculations

PREN (Pitting Resistance) 6.4
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 19 to 20
20

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.1
Chromium (Cr), % 2.8 to 3.3
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 93.8 to 95.8
23.3 to 36.3
Manganese (Mn), % 0.3 to 0.6
1.0 to 2.5
Molybdenum (Mo), % 0.9 to 1.1
2.5 to 3.5
Nickel (Ni), % 0 to 0.25
19 to 21
Niobium (Nb), % 0 to 0.070
0.75 to 1.3
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0
2.0 to 3.0
Vanadium (V), % 0.2 to 0.3
0