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S30415 Stainless Steel vs. S21603 Stainless Steel

Both S30415 stainless steel and S21603 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S30415 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 300
360
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 84
88
Shear Modulus, GPa 77
79
Shear Strength, MPa 470
490
Tensile Strength: Ultimate (UTS), MPa 670
690
Tensile Strength: Yield (Proof), MPa 330
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 940
990
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.6
Embodied Energy, MJ/kg 43
50
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 21
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
270
Resilience: Unit (Modulus of Resilience), kJ/m3 280
380
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 Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0.040 to 0.060
0 to 0.030
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
17.5 to 22
Iron (Fe), % 67.8 to 71.8
57.6 to 67.8
Manganese (Mn), % 0 to 0.8
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 9.0 to 10
5.0 to 7.0
Nitrogen (N), % 0.12 to 0.18
0.25 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 1.0 to 2.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030