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AWS E309H vs. ASTM A182 Grade F122

Both AWS E309H and ASTM A182 grade F122 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 (8, in this case) are not shown.

For each property being compared, the top bar is AWS E309H and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
23
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 620
710

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1410
1490
Melting Onset (Solidus), °C 1370
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.7
3.0
Embodied Energy, MJ/kg 52
44
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 25
17
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
6.4
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.040 to 0.15
0.070 to 0.14
Chromium (Cr), % 22 to 25
10 to 11.5
Copper (Cu), % 0 to 0.75
0.3 to 1.7
Iron (Fe), % 55.8 to 65.5
81.3 to 87.7
Manganese (Mn), % 0.5 to 2.5
0 to 0.7
Molybdenum (Mo), % 0 to 0.75
0.25 to 0.6
Nickel (Ni), % 12 to 14
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0
0.040 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010