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EN 1.4597 Stainless Steel vs. SAE-AISI 8625 Steel

Both EN 1.4597 stainless steel and SAE-AISI 8625 steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4597 stainless steel and the bottom bar is SAE-AISI 8625 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 45
25
Fatigue Strength, MPa 300
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 470
330
Tensile Strength: Ultimate (UTS), MPa 680
510
Tensile Strength: Yield (Proof), MPa 330
330

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 860
410
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.5
Embodied Energy, MJ/kg 36
20
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 4.1
10
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0 to 0.1
0.23 to 0.28
Chromium (Cr), % 15 to 18
0.4 to 0.6
Copper (Cu), % 2.0 to 3.5
0
Iron (Fe), % 63 to 76.4
96.8 to 98
Manganese (Mn), % 6.5 to 9.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 1.0
0.15 to 0.25
Nickel (Ni), % 0 to 3.0
0.4 to 0.7
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040