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S44330 Stainless Steel vs. SAE-AISI 1039 Steel

Both S44330 stainless steel and SAE-AISI 1039 steel are iron alloys. They have 77% 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 S44330 stainless steel and the bottom bar is SAE-AISI 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
14 to 18
Fatigue Strength, MPa 160
230 to 370
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 280
380 to 420
Tensile Strength: Ultimate (UTS), MPa 440
610 to 690
Tensile Strength: Yield (Proof), MPa 230
340 to 580

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 40
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 140
310 to 890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
22 to 24
Strength to Weight: Bending, points 17
20 to 22
Thermal Diffusivity, mm2/s 5.7
14
Thermal Shock Resistance, points 16
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.025
0.37 to 0.44
Chromium (Cr), % 20 to 23
0
Copper (Cu), % 0.3 to 0.8
0
Iron (Fe), % 72.5 to 79.7
98.5 to 98.9
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Niobium (Nb), % 0 to 0.8
0
Nitrogen (N), % 0 to 0.025
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Titanium (Ti), % 0 to 0.8
0