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S35500 Stainless Steel vs. AISI 431 Stainless Steel

Both S35500 stainless steel and AISI 431 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S35500 stainless steel and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14
15 to 17
Fatigue Strength, MPa 690 to 730
430 to 610
Poisson's Ratio 0.28
0.28
Rockwell C Hardness 33 to 42
26
Shear Modulus, GPa 78
77
Shear Strength, MPa 810 to 910
550 to 840
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
890 to 1380
Tensile Strength: Yield (Proof), MPa 1200 to 1280
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 440
400
Maximum Temperature: Mechanical, °C 870
850
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.2
Embodied Energy, MJ/kg 47
31
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 27
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
1270 to 2770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 47 to 53
32 to 50
Strength to Weight: Bending, points 34 to 37
27 to 36
Thermal Diffusivity, mm2/s 4.4
7.0
Thermal Shock Resistance, points 44 to 49
28 to 43

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.2
Chromium (Cr), % 15 to 16
15 to 17
Iron (Fe), % 73.2 to 77.7
78.2 to 83.8
Manganese (Mn), % 0.5 to 1.3
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
1.3 to 2.5
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030