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AWS E309Mo vs. EN 1.4948 Stainless Steel

Both AWS E309Mo and EN 1.4948 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E309Mo and the bottom bar is EN 1.4948 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
48
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 620
610

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 22
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.0
Embodied Energy, MJ/kg 59
43
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 32
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 3.9
4.5
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.12
0.040 to 0.080
Chromium (Cr), % 22 to 25
17 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.6 to 63.5
66.8 to 75
Manganese (Mn), % 0.5 to 2.5
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 12 to 14
8.0 to 11
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015