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SAE-AISI 1090 Steel vs. EN 1.4630 Stainless Steel

Both SAE-AISI 1090 steel and EN 1.4630 stainless steel are iron alloys. They have 82% of their average alloy composition in common. 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 SAE-AISI 1090 steel and the bottom bar is EN 1.4630 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 320 to 380
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 470 to 570
300
Tensile Strength: Ultimate (UTS), MPa 790 to 950
480
Tensile Strength: Yield (Proof), MPa 520 to 610
250

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 400
800
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
28
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.5
Embodied Energy, MJ/kg 19
36
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 91
92
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1000
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 34
17
Strength to Weight: Bending, points 24 to 27
18
Thermal Diffusivity, mm2/s 13
7.5
Thermal Shock Resistance, points 25 to 31
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0.85 to 1.0
0 to 0.030
Chromium (Cr), % 0
13 to 16
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98 to 98.6
77.1 to 86.7
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0
0.2 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.8