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AISI 403 Stainless Steel vs. AISI 430F Stainless Steel

Both AISI 403 stainless steel and AISI 430F stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 34 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 AISI 403 stainless steel and the bottom bar is AISI 430F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 25
23
Fatigue Strength, MPa 200 to 340
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 47 to 50
50
Shear Modulus, GPa 76
77
Shear Strength, MPa 340 to 480
340
Tensile Strength: Ultimate (UTS), MPa 530 to 780
540
Tensile Strength: Yield (Proof), MPa 280 to 570
310

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 740
870
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 28
25
Thermal Expansion, µm/m-K 9.9
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 6.5
8.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.1
Embodied Energy, MJ/kg 27
29
Embodied Water, L/kg 99
120

Common Calculations

PREN (Pitting Resistance) 12
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 28
20
Strength to Weight: Bending, points 19 to 24
19
Thermal Diffusivity, mm2/s 7.6
6.7
Thermal Shock Resistance, points 20 to 29
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.12
Chromium (Cr), % 11.5 to 13
16 to 18
Iron (Fe), % 84.7 to 88.5
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 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35