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EN 1.4872 Stainless Steel vs. EN 1.4474 Stainless Steel

Both EN 1.4872 stainless steel and EN 1.4474 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4474 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
23
Fatigue Strength, MPa 410
320
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 950
670
Tensile Strength: Yield (Proof), MPa 560
480

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1150
1100
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
17
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.4
Embodied Energy, MJ/kg 47
48
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 30
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
140
Resilience: Unit (Modulus of Resilience), kJ/m3 780
560
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
24
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 3.9
4.6
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0.2 to 0.3
0 to 0.050
Chromium (Cr), % 24 to 26
25 to 27
Iron (Fe), % 54.2 to 61.6
61.2 to 69.1
Manganese (Mn), % 8.0 to 10
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 2.0
Nickel (Ni), % 6.0 to 8.0
4.5 to 6.5
Nitrogen (N), % 0.2 to 0.4
0.12 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025