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S31727 Stainless Steel vs. S15500 Stainless Steel

Both S31727 stainless steel and S15500 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
6.8 to 16
Fatigue Strength, MPa 240
350 to 650
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
17 to 40
Shear Modulus, GPa 78
75
Shear Strength, MPa 430
540 to 870
Tensile Strength: Ultimate (UTS), MPa 630
890 to 1490
Tensile Strength: Yield (Proof), MPa 270
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1010
820
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.7
2.7
Embodied Energy, MJ/kg 64
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
32 to 53
Strength to Weight: Bending, points 20
26 to 37
Thermal Shock Resistance, points 14
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 17.5 to 19
14 to 15.5
Copper (Cu), % 2.8 to 4.0
2.5 to 4.5
Iron (Fe), % 53.7 to 61.3
71.9 to 79.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030