MakeItFrom.com
Menu (ESC)

AWS E309Mo vs. AWS E330H

Both AWS E309Mo and AWS E330H are iron alloys. Both are furnished in the as-welded condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is AWS E309Mo and the bottom bar is AWS E330H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
11
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 620
690

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.2
5.4
Embodied Energy, MJ/kg 59
76
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 32
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.12
0.35 to 0.45
Chromium (Cr), % 22 to 25
14 to 17
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 53.6 to 63.5
40.5 to 51.7
Manganese (Mn), % 0.5 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.75
Nickel (Ni), % 12 to 14
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030