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S30415 Stainless Steel vs. S44401 Stainless Steel

Both S30415 stainless steel and S44401 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 89% of their average alloy composition in common. There are 32 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 S30415 stainless steel and the bottom bar is S44401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
21
Fatigue Strength, MPa 300
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 470
300
Tensile Strength: Ultimate (UTS), MPa 670
480
Tensile Strength: Yield (Proof), MPa 330
300

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
510
Maximum Temperature: Mechanical, °C 940
930
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
22
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 43
40
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 21
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
90
Resilience: Unit (Modulus of Resilience), kJ/m3 280
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 5.6
5.9
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0.040 to 0.060
0 to 0.025
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
17.5 to 19.5
Iron (Fe), % 67.8 to 71.8
75.1 to 80.6
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 9.0 to 10
0 to 1.0
Nitrogen (N), % 0.12 to 0.18
0 to 0.035
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8