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AISI 439 Stainless Steel vs. AISI 310S Stainless Steel

Both AISI 439 stainless steel and AISI 310S stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 33 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 AISI 439 stainless steel and the bottom bar is AISI 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
34 to 44
Fatigue Strength, MPa 170
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 310
420 to 470
Tensile Strength: Ultimate (UTS), MPa 490
600 to 710
Tensile Strength: Yield (Proof), MPa 250
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 530
450
Maximum Temperature: Mechanical, °C 890
1100
Melting Completion (Liquidus), °C 1510
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.3
4.3
Embodied Energy, MJ/kg 34
61
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 18
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
190 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21 to 25
Strength to Weight: Bending, points 18
20 to 22
Thermal Diffusivity, mm2/s 6.7
4.1
Thermal Shock Resistance, points 16
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 17 to 19
24 to 26
Iron (Fe), % 77.1 to 82.8
48.3 to 57
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0 to 0.5
19 to 22
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.1
0