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S39274 Stainless Steel vs. SAE-AISI 1039 Steel

Both S39274 stainless steel and SAE-AISI 1039 steel are iron alloys. They have 62% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S39274 stainless steel and the bottom bar is SAE-AISI 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
14 to 18
Fatigue Strength, MPa 380
230 to 370
Poisson's Ratio 0.27
0.29
Reduction in Area, % 34
40 to 45
Shear Modulus, GPa 81
73
Shear Strength, MPa 560
380 to 420
Tensile Strength: Ultimate (UTS), MPa 900
610 to 690
Tensile Strength: Yield (Proof), MPa 620
340 to 580

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 24
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.4
Embodied Energy, MJ/kg 60
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 940
310 to 890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
22 to 24
Strength to Weight: Bending, points 26
20 to 22
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 25
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0.37 to 0.44
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 57 to 65.6
98.5 to 98.9
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.020
0 to 0.050
Tungsten (W), % 1.5 to 2.5
0