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EN 1.4587 Stainless Steel vs. SAE-AISI 8630 Steel

Both EN 1.4587 stainless steel and SAE-AISI 8630 steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4587 stainless steel and the bottom bar is SAE-AISI 8630 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12 to 24
Fatigue Strength, MPa 200
260 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 540
540 to 680
Tensile Strength: Yield (Proof), MPa 250
360 to 560

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
39
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.6
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.3
1.5
Embodied Energy, MJ/kg 87
20
Embodied Water, L/kg 230
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
340 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
19 to 24
Strength to Weight: Bending, points 18
19 to 22
Thermal Diffusivity, mm2/s 4.5
10
Thermal Shock Resistance, points 13
18 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.33
Chromium (Cr), % 24 to 26
0.4 to 0.6
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 32.7 to 41.9
96.8 to 97.9
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Molybdenum (Mo), % 4.0 to 5.0
0.15 to 0.25
Nickel (Ni), % 28 to 30
0.4 to 0.7
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040