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AISI 405 Stainless Steel vs. AISI 430F Stainless Steel

Both AISI 405 stainless steel and AISI 430F stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 405 stainless steel and the bottom bar is AISI 430F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
23
Fatigue Strength, MPa 130
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
50
Shear Modulus, GPa 76
77
Shear Strength, MPa 300
340
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 820
870
Melting Completion (Liquidus), °C 1530
1430
Melting Onset (Solidus), °C 1480
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.1
Embodied Energy, MJ/kg 28
29
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 13
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0.1 to 0.3
0
Carbon (C), % 0 to 0.080
0 to 0.12
Chromium (Cr), % 11.5 to 14.5
16 to 18
Iron (Fe), % 82.5 to 88.4
79.2 to 83.9
Manganese (Mn), % 0 to 1.0
0 to 1.3
Nickel (Ni), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35