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EN 1.4525 Stainless Steel vs. SAE-AISI T8 Steel

Both EN 1.4525 stainless steel and SAE-AISI T8 steel are iron alloys. They have 78% 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 1.4525 stainless steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1730
Melting Onset (Solidus), °C 1390
1670
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 18
18
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
45
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 39
160
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 18
30
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 36 to 45
24 to 66
Strength to Weight: Bending, points 29 to 33
21 to 41
Thermal Diffusivity, mm2/s 4.7
4.8
Thermal Shock Resistance, points 34 to 41
24 to 66

Alloy Composition

Carbon (C), % 0 to 0.070
0.75 to 0.85
Chromium (Cr), % 15 to 17
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 2.5 to 4.0
0 to 0.25
Iron (Fe), % 70.4 to 79
69.3 to 75.4
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.8
0.4 to 1.0
Nickel (Ni), % 3.5 to 5.5
0 to 0.3
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.8
0.2 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4

Comparable Variants