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EN 1.4729 Stainless Steel vs. AWS E430

Both EN 1.4729 stainless steel and AWS E430 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 21 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 EN 1.4729 stainless steel and the bottom bar is AWS E430.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 24
25
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.0
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.1
2.2
Embodied Energy, MJ/kg 29
31
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.5
6.7

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.1
Chromium (Cr), % 12 to 14
15 to 18
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 80.4 to 86.7
77.8 to 85
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.75
Nickel (Ni), % 0 to 1.0
0 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.030