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EN 1.4872 Stainless Steel vs. EN 1.4729 Stainless Steel

Both EN 1.4872 stainless steel and EN 1.4729 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 24 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 EN 1.4872 stainless steel and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
260
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
15
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
75

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1150
850
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
7.5
Density, g/cm3 7.6
7.6
Embodied Carbon, kg CO2/kg material 3.3
2.1
Embodied Energy, MJ/kg 47
29
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 30
14
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 3.9
6.5

Alloy Composition

Carbon (C), % 0.2 to 0.3
0.3 to 0.5
Chromium (Cr), % 24 to 26
12 to 14
Iron (Fe), % 54.2 to 61.6
80.4 to 86.7
Manganese (Mn), % 8.0 to 10
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 6.0 to 8.0
0 to 1.0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030