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AWS E209 vs. AISI 439 Stainless Steel

Both AWS E209 and AISI 439 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS E209 and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
490

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1420
1510
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.3
Embodied Energy, MJ/kg 63
34
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 33
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 20.5 to 24
17 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 51.5 to 64.3
77.1 to 82.8
Manganese (Mn), % 4.0 to 7.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 9.5 to 12
0 to 0.5
Nitrogen (N), % 0.1 to 0.3
0 to 0.030
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
Titanium (Ti), % 0
0.2 to 1.1
Vanadium (V), % 0.1 to 0.3
0