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SAE-AISI 1074 Steel vs. EN 1.4650 Stainless Steel

Both SAE-AISI 1074 steel and EN 1.4650 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 1074 steel and the bottom bar is EN 1.4650 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
48
Fatigue Strength, MPa 290 to 350
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 440 to 490
440
Tensile Strength: Ultimate (UTS), MPa 740 to 820
620
Tensile Strength: Yield (Proof), MPa 450 to 570
240

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
970
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
240
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
22
Strength to Weight: Bending, points 23 to 25
21
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 24 to 26
14

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.030
Chromium (Cr), % 0
18.5 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 98.3 to 98.8
65.8 to 72.5
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Nickel (Ni), % 0
9.0 to 10
Nitrogen (N), % 0
0 to 0.080
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015