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AWS ER70S-A1 vs. AWS ER110S-1

Both AWS ER70S-A1 and AWS ER110S-1 are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is AWS ER110S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 590
870
Tensile Strength: Yield (Proof), MPa 450
740

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 20
25
Embodied Water, L/kg 48
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 540
1460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
31
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 17
26

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.12
0 to 0.090
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 96.1 to 99.3
92.8 to 96.3
Manganese (Mn), % 0 to 1.3
1.4 to 1.8
Molybdenum (Mo), % 0.4 to 0.65
0.25 to 0.55
Nickel (Ni), % 0 to 0.2
1.9 to 2.6
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0.3 to 0.7
0.2 to 0.55
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.040
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5