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AWS E309H vs. EN 1.4911 Stainless Steel

Both AWS E309H and EN 1.4911 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E309H and the bottom bar is EN 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
11
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 620
1070

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
20
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
3.4
Embodied Energy, MJ/kg 52
49
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 25
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
38
Strength to Weight: Bending, points 21
30
Thermal Diffusivity, mm2/s 4.0
5.4
Thermal Shock Resistance, points 16
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0.040 to 0.15
0.050 to 0.12
Chromium (Cr), % 22 to 25
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 55.8 to 65.5
75.7 to 83.8
Manganese (Mn), % 0.5 to 2.5
0.3 to 1.3
Molybdenum (Mo), % 0 to 0.75
0.5 to 1.0
Nickel (Ni), % 12 to 14
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4