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AISI 309 Stainless Steel vs. S30815 Stainless Steel

Both AISI 309 stainless steel and S30815 stainless steel are iron alloys. They have a moderately high 95% 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 309 stainless steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 47
45
Fatigue Strength, MPa 250 to 280
320
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 84
82
Shear Modulus, GPa 78
77
Shear Strength, MPa 420 to 470
480
Tensile Strength: Ultimate (UTS), MPa 600 to 710
680
Tensile Strength: Yield (Proof), MPa 260 to 350
350

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 980
1020
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
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
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.3
Embodied Energy, MJ/kg 51
47
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 23
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
260
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
25
Strength to Weight: Bending, points 20 to 23
22
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 14 to 16
15

Alloy Composition

Carbon (C), % 0 to 0.2
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 22 to 24
20 to 22
Iron (Fe), % 58 to 66
62.8 to 68.4
Manganese (Mn), % 0 to 2.0
0 to 0.8
Nickel (Ni), % 12 to 15
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030