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AWS E307 vs. EN 1.4903 Stainless Steel

Both AWS E307 and EN 1.4903 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E307 and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
20 to 21
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 660
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.6
Embodied Energy, MJ/kg 49
36
Embodied Water, L/kg 160
88

Common Calculations

PREN (Pitting Resistance) 23
13
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 4.1
7.0
Thermal Shock Resistance, points 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.040 to 0.14
0.080 to 0.12
Chromium (Cr), % 18 to 21.5
8.0 to 9.5
Copper (Cu), % 0 to 0.75
0 to 0.3
Iron (Fe), % 59.6 to 69.2
87.1 to 90.5
Manganese (Mn), % 3.3 to 4.8
0.3 to 0.6
Molybdenum (Mo), % 0.5 to 1.5
0.85 to 1.1
Nickel (Ni), % 9.0 to 10.7
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25