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EN 1.4872 Stainless Steel vs. EN 1.4646 Stainless Steel

Both EN 1.4872 stainless steel and EN 1.4646 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
34
Fatigue Strength, MPa 410
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 620
500
Tensile Strength: Ultimate (UTS), MPa 950
750
Tensile Strength: Yield (Proof), MPa 560
430

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1150
910
Melting Completion (Liquidus), °C 1390
1390
Melting Onset (Solidus), °C 1340
1340
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 30
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
220
Resilience: Unit (Modulus of Resilience), kJ/m3 780
460
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
27
Strength to Weight: Bending, points 28
24
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0.2 to 0.3
0.020 to 0.1
Chromium (Cr), % 24 to 26
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 54.2 to 61.6
59 to 67.3
Manganese (Mn), % 8.0 to 10
10.5 to 12.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 6.0 to 8.0
3.5 to 4.5
Nitrogen (N), % 0.2 to 0.4
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015