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AWS E240 vs. EN 1.4945 Stainless Steel

Both AWS E240 and EN 1.4945 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E240 and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
19 to 34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 770
640 to 740

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1390
1490
Melting Onset (Solidus), °C 1350
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
30
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.0
5.0
Embodied Energy, MJ/kg 42
73
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 22
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
22 to 25
Strength to Weight: Bending, points 24
20 to 22
Thermal Diffusivity, mm2/s 3.9
3.7
Thermal Shock Resistance, points 19
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.060
0.040 to 0.1
Chromium (Cr), % 17 to 19
15.5 to 17.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 68.4
57.9 to 65.7
Manganese (Mn), % 10.5 to 13.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 4.0 to 6.0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.1 to 0.3
0.060 to 0.14
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5