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EN 1.4971 Stainless Steel vs. SAE-AISI T5 Steel

Both EN 1.4971 stainless steel and SAE-AISI T5 steel are iron alloys. They have 48% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 800
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1410
1750
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
60
Density, g/cm3 8.4
9.4
Embodied Carbon, kg CO2/kg material 7.6
11
Embodied Energy, MJ/kg 110
170
Embodied Water, L/kg 300
140

Common Calculations

PREN (Pitting Resistance) 38
37
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 26
25 to 63
Strength to Weight: Bending, points 23
21 to 39
Thermal Diffusivity, mm2/s 3.4
5.5
Thermal Shock Resistance, points 19
26 to 66

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.75 to 0.85
Chromium (Cr), % 20 to 22.5
3.8 to 5.0
Cobalt (Co), % 18.5 to 21
7.0 to 9.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
60.6 to 68.3
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 2.5 to 3.5
0.5 to 1.3
Nickel (Ni), % 19 to 21
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4