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EN 1.4971 Stainless Steel vs. EN 1.4710 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4710 stainless steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (11, 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 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
260
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
20
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
74

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 570
360
Maximum Temperature: Mechanical, °C 1100
750
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
24
Thermal Expansion, µm/m-K 15
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
5.0
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
1.8
Embodied Energy, MJ/kg 110
24
Embodied Water, L/kg 300
76

Common Calculations

PREN (Pitting Resistance) 38
7.2
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 3.4
6.5

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.2 to 0.35
Chromium (Cr), % 20 to 22.5
6.0 to 8.0
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
87.4 to 92.3
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.15
Nickel (Ni), % 19 to 21
0 to 0.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0