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EN 1.4971 Stainless Steel vs. SAE-AISI H26 Steel

Both EN 1.4971 stainless steel and SAE-AISI H26 steel are iron alloys. They have a modest 38% 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 (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 H26 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
720 to 2100

Thermal Properties

Latent Heat of Fusion, J/g 300
240
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1410
1760
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 13
22
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
45
Density, g/cm3 8.4
9.3
Embodied Carbon, kg CO2/kg material 7.6
8.1
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 300
90

Common Calculations

PREN (Pitting Resistance) 38
34
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 26
22 to 63
Strength to Weight: Bending, points 23
19 to 39
Thermal Diffusivity, mm2/s 3.4
5.6
Thermal Shock Resistance, points 19
22 to 63

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.45 to 0.55
Chromium (Cr), % 20 to 22.5
3.8 to 4.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
73.3 to 77.5
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 2.5 to 3.5
0
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
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
17.3 to 19
Vanadium (V), % 0
0.75 to 1.3