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S30415 Stainless Steel vs. S30815 Stainless Steel

Both S30415 stainless steel and S30815 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% 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 S30415 stainless steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 300
320
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 84
82
Shear Modulus, GPa 77
77
Shear Strength, MPa 470
480
Tensile Strength: Ultimate (UTS), MPa 670
680
Tensile Strength: Yield (Proof), MPa 330
350

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 940
1020
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.3
Embodied Energy, MJ/kg 43
47
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 21
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
260
Resilience: Unit (Modulus of Resilience), kJ/m3 280
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 5.6
4.0
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0.040 to 0.060
0.050 to 0.1
Cerium (Ce), % 0.030 to 0.080
0.030 to 0.080
Chromium (Cr), % 18 to 19
20 to 22
Iron (Fe), % 67.8 to 71.8
62.8 to 68.4
Manganese (Mn), % 0 to 0.8
0 to 0.8
Nickel (Ni), % 9.0 to 10
10 to 12
Nitrogen (N), % 0.12 to 0.18
0.14 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.0 to 2.0
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030