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EN 1.4865 Stainless Steel vs. EN 1.4971 Stainless Steel

Both EN 1.4865 stainless steel and EN 1.4971 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 30 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 1.4865 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
240
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 6.8
34
Fatigue Strength, MPa 120
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 470
800
Tensile Strength: Yield (Proof), MPa 250
340

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 410
570
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 12
13
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Base Metal Price, % relative 33
70
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 5.8
7.6
Embodied Energy, MJ/kg 81
110
Embodied Water, L/kg 200
300

Common Calculations

PREN (Pitting Resistance) 20
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 3.1
3.4
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.080 to 0.16
Chromium (Cr), % 18 to 21
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 34.4 to 44.7
24.3 to 37.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.5
Nickel (Ni), % 36 to 39
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0