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EN 1.4971 Stainless Steel vs. EN 1.4462 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4462 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 62% 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 1.4462 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
240
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
26
Fatigue Strength, MPa 270
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
80
Shear Strength, MPa 530
500
Tensile Strength: Ultimate (UTS), MPa 800
780
Tensile Strength: Yield (Proof), MPa 340
520

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 570
430
Maximum Temperature: Mechanical, °C 1100
1060
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.6
3.6
Embodied Energy, MJ/kg 110
49
Embodied Water, L/kg 300
160

Common Calculations

PREN (Pitting Resistance) 38
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 3.4
4.0
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.030
Chromium (Cr), % 20 to 22.5
21 to 23
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
63.7 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
2.5 to 3.5
Nickel (Ni), % 19 to 21
4.5 to 6.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0.1 to 0.22
Phosphorus (P), % 0 to 0.035
0 to 0.035
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