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EN 1.7703 Steel vs. AWS E320LR

Both EN 1.7703 steel and AWS E320LR are iron alloys. They have 42% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.7703 steel and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 670 to 690
580

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
36
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.5
6.2
Embodied Energy, MJ/kg 35
87
Embodied Water, L/kg 61
220

Common Calculations

PREN (Pitting Resistance) 5.6
28
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
19
Thermal Shock Resistance, points 19 to 20
15

Alloy Composition

Carbon (C), % 0.11 to 0.15
0 to 0.030
Chromium (Cr), % 2.0 to 2.5
19 to 21
Copper (Cu), % 0 to 0.2
3.0 to 4.0
Iron (Fe), % 94.6 to 96.4
32.7 to 42.5
Manganese (Mn), % 0.3 to 0.6
1.5 to 2.5
Molybdenum (Mo), % 0.9 to 1.1
2.0 to 3.0
Nickel (Ni), % 0 to 0.25
32 to 36
Niobium (Nb), % 0 to 0.070
0 to 0.4
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.3
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.25 to 0.35
0