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EN 1.4886 Stainless Steel vs. EN 1.4971 Stainless Steel

Both EN 1.4886 stainless steel and EN 1.4971 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 71% 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 1.4886 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
240
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45
34
Fatigue Strength, MPa 280
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Shear Strength, MPa 400
530
Tensile Strength: Ultimate (UTS), MPa 580
800
Tensile Strength: Yield (Proof), MPa 300
340

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 420
570
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
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 31
70
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 5.4
7.6
Embodied Energy, MJ/kg 76
110
Embodied Water, L/kg 190
300

Common Calculations

PREN (Pitting Resistance) 19
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
220
Resilience: Unit (Modulus of Resilience), kJ/m3 230
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.1
3.4
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.15
0.080 to 0.16
Chromium (Cr), % 17 to 20
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 38.7 to 49
24.3 to 37.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 33 to 37
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.1
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0