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AISI 309S Stainless Steel vs. S30415 Stainless Steel

Both AISI 309S stainless steel and S30415 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 91% 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 309S stainless steel and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 42
45
Fatigue Strength, MPa 210
300
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 84
84
Shear Modulus, GPa 78
77
Shear Strength, MPa 400
470
Tensile Strength: Ultimate (UTS), MPa 580
670
Tensile Strength: Yield (Proof), MPa 230
330

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1080
940
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.1
Embodied Energy, MJ/kg 51
43
Embodied Water, L/kg 170
140

Common Calculations

PREN (Pitting Resistance) 23
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
250
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
5.6
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.080
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 22 to 24
18 to 19
Iron (Fe), % 58.1 to 66
67.8 to 71.8
Manganese (Mn), % 0 to 2.0
0 to 0.8
Nickel (Ni), % 12 to 15
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030