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EN 1.4971 Stainless Steel vs. EN 1.4466 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4466 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 76% 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 1.4971 stainless steel and the bottom bar is EN 1.4466 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
210
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
42
Fatigue Strength, MPa 270
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
80
Shear Strength, MPa 530
440
Tensile Strength: Ultimate (UTS), MPa 800
640
Tensile Strength: Yield (Proof), MPa 340
280

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 570
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
28
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 7.6
5.0
Embodied Energy, MJ/kg 110
70
Embodied Water, L/kg 300
200

Common Calculations

PREN (Pitting Resistance) 38
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
220
Resilience: Unit (Modulus of Resilience), kJ/m3 280
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 3.4
3.7
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.020
Chromium (Cr), % 20 to 22.5
24 to 26
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
45.6 to 52.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
2.0 to 2.5
Nickel (Ni), % 19 to 21
21 to 23
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0.1 to 0.16
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010
Tungsten (W), % 2.0 to 3.0
0