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AWS E309L vs. AWS E430

Both AWS E309L and AWS E430 are iron alloys. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is AWS E309L and the bottom bar is AWS E430.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
500

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.2
Embodied Energy, MJ/kg 52
31
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 25
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.1
Chromium (Cr), % 22 to 25
15 to 18
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 55.9 to 65.5
77.8 to 85
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.75
Nickel (Ni), % 12 to 14
0 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.030