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EN 1.4438 Stainless Steel vs. SAE-AISI 1064 Steel

Both EN 1.4438 stainless steel and SAE-AISI 1064 steel are iron alloys. They have 63% 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 EN 1.4438 stainless steel and the bottom bar is SAE-AISI 1064 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
12 to 13
Fatigue Strength, MPa 220
300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
72
Shear Strength, MPa 420
430 to 440
Tensile Strength: Ultimate (UTS), MPa 620
720 to 730
Tensile Strength: Yield (Proof), MPa 250
470 to 480

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
51
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.4
Embodied Energy, MJ/kg 60
19
Embodied Water, L/kg 160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
79 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 150
600 to 630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
25 to 26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.7
14
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0 to 0.030
0.6 to 0.7
Chromium (Cr), % 17.5 to 19.5
0
Iron (Fe), % 57.3 to 66.5
98.4 to 98.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 13 to 16
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050