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S40977 Stainless Steel vs. AISI 414 Stainless Steel

Both S40977 stainless steel and AISI 414 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 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 S40977 stainless steel and the bottom bar is AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
17
Fatigue Strength, MPa 200
430 to 480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 320
550 to 590
Tensile Strength: Ultimate (UTS), MPa 510
900 to 960
Tensile Strength: Yield (Proof), MPa 310
700 to 790

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 720
750
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
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.1
Embodied Energy, MJ/kg 27
29
Embodied Water, L/kg 97
100

Common Calculations

PREN (Pitting Resistance) 12
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1260 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
32 to 34
Strength to Weight: Bending, points 18
27 to 28
Thermal Diffusivity, mm2/s 6.7
6.7
Thermal Shock Resistance, points 18
33 to 35

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 10.5 to 12.5
11.5 to 13.5
Iron (Fe), % 83.9 to 89.2
81.8 to 87.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 0.3 to 1.0
1.3 to 2.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030