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AISI 414 Stainless Steel vs. S17400 Stainless Steel

Both AISI 414 stainless steel and S17400 stainless steel are iron alloys. They have a moderately high 90% 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 414 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
11 to 21
Fatigue Strength, MPa 430 to 480
380 to 670
Poisson's Ratio 0.28
0.28
Reduction in Area, % 50
40 to 62
Shear Modulus, GPa 76
75
Shear Strength, MPa 550 to 590
570 to 830
Tensile Strength: Ultimate (UTS), MPa 900 to 960
910 to 1390
Tensile Strength: Yield (Proof), MPa 700 to 790
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 750
850
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.7
Embodied Energy, MJ/kg 29
39
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 13
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 34
32 to 49
Strength to Weight: Bending, points 27 to 28
27 to 35
Thermal Diffusivity, mm2/s 6.7
4.5
Thermal Shock Resistance, points 33 to 35
30 to 46

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.070
Chromium (Cr), % 11.5 to 13.5
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 81.8 to 87.3
70.4 to 78.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 1.3 to 2.5
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030