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EN 1.4971 Stainless Steel vs. EN 1.4872 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4872 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 61% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
270
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 270
410
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
79
Shear Strength, MPa 530
620
Tensile Strength: Ultimate (UTS), MPa 800
950
Tensile Strength: Yield (Proof), MPa 340
560

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 570
440
Maximum Temperature: Mechanical, °C 1100
1150
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 8.4
7.6
Embodied Carbon, kg CO2/kg material 7.6
3.3
Embodied Energy, MJ/kg 110
47
Embodied Water, L/kg 300
180

Common Calculations

PREN (Pitting Resistance) 38
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
230
Resilience: Unit (Modulus of Resilience), kJ/m3 280
780
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 26
35
Strength to Weight: Bending, points 23
28
Thermal Diffusivity, mm2/s 3.4
3.9
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.2 to 0.3
Chromium (Cr), % 20 to 22.5
24 to 26
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
54.2 to 61.6
Manganese (Mn), % 0 to 2.0
8.0 to 10
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
6.0 to 8.0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0.2 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 2.0 to 3.0
0