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AISI 314 Stainless Steel vs. AISI 430 Stainless Steel

Both AISI 314 stainless steel and AISI 430 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 70% 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 314 stainless steel and the bottom bar is AISI 430 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
24
Fatigue Strength, MPa 210
180
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
51
Shear Modulus, GPa 78
77
Shear Strength, MPa 410
320
Tensile Strength: Ultimate (UTS), MPa 590
500
Tensile Strength: Yield (Proof), MPa 230
260

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1380
1510
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 15
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 4.3
2.1
Embodied Energy, MJ/kg 62
30
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 25
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
100
Resilience: Unit (Modulus of Resilience), kJ/m3 130
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.9
6.7
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.12
Chromium (Cr), % 23 to 26
16 to 18
Iron (Fe), % 46.7 to 56.5
79.1 to 84
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 19 to 22
0 to 0.75
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.5 to 3.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030