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SAE-AISI A9 Steel vs. EN 1.4826 Stainless Steel

Both SAE-AISI A9 steel and EN 1.4826 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A9 steel and the bottom bar is EN 1.4826 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
500

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 35
14
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.7
3.3
Embodied Energy, MJ/kg 70
47
Embodied Water, L/kg 82
160

Common Calculations

PREN (Pitting Resistance) 10
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 73
18
Strength to Weight: Bending, points 24 to 46
18
Thermal Diffusivity, mm2/s 9.6
3.7
Thermal Shock Resistance, points 25 to 66
11

Alloy Composition

Carbon (C), % 0.45 to 0.55
0.3 to 0.5
Chromium (Cr), % 4.8 to 5.5
21 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87 to 90.5
60.4 to 68.7
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 1.3 to 1.8
0 to 0.5
Nickel (Ni), % 1.3 to 1.8
9.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 1.2
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.8 to 1.4
0