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AWS E307 vs. EN 1.4303 Stainless Steel

Both AWS E307 and EN 1.4303 stainless steel are iron alloys. They have a moderately high 94% 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 E307 and the bottom bar is EN 1.4303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
13 to 49
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 660
590 to 900

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
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
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
3.2
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 23
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
21 to 32
Strength to Weight: Bending, points 22
20 to 26
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 17
13 to 20

Alloy Composition

Carbon (C), % 0.040 to 0.14
0 to 0.060
Chromium (Cr), % 18 to 21.5
17 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 59.6 to 69.2
64.8 to 72
Manganese (Mn), % 3.3 to 4.8
0 to 2.0
Molybdenum (Mo), % 0.5 to 1.5
0
Nickel (Ni), % 9.0 to 10.7
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015