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EN 1.4724 Stainless Steel vs. EN 1.4872 Stainless Steel

Both EN 1.4724 stainless steel and EN 1.4872 stainless steel are iron alloys. They have 72% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4724 stainless steel and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
28
Fatigue Strength, MPa 170
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
79
Shear Strength, MPa 340
620
Tensile Strength: Ultimate (UTS), MPa 550
950
Tensile Strength: Yield (Proof), MPa 280
560

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 850
1150
Melting Completion (Liquidus), °C 1430
1390
Melting Onset (Solidus), °C 1390
1340
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
17
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
3.3
Embodied Energy, MJ/kg 28
47
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 13
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
230
Resilience: Unit (Modulus of Resilience), kJ/m3 210
780
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 20
35
Strength to Weight: Bending, points 19
28
Thermal Diffusivity, mm2/s 5.6
3.9
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.2 to 0.3
Chromium (Cr), % 12 to 14
24 to 26
Iron (Fe), % 82.2 to 86.6
54.2 to 61.6
Manganese (Mn), % 0 to 1.0
8.0 to 10
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.7 to 1.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015