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S45500 Stainless Steel vs. S15500 Stainless Steel

Both S45500 stainless steel and S15500 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S45500 stainless steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 500
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 3.4 to 11
6.8 to 16
Fatigue Strength, MPa 570 to 890
350 to 650
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34 to 45
17 to 40
Rockwell C Hardness 32 to 54
27 to 46
Shear Modulus, GPa 75
75
Shear Strength, MPa 790 to 1090
540 to 870
Tensile Strength: Ultimate (UTS), MPa 1370 to 1850
890 to 1490
Tensile Strength: Yield (Proof), MPa 1240 to 1700
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 620
440
Maximum Temperature: Mechanical, °C 760
820
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 57
39
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 13
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 190
98 to 120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 48 to 65
32 to 53
Strength to Weight: Bending, points 35 to 42
26 to 37
Thermal Shock Resistance, points 48 to 64
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 11 to 12.5
14 to 15.5
Copper (Cu), % 1.5 to 2.5
2.5 to 4.5
Iron (Fe), % 71.5 to 79.2
71.9 to 79.9
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
3.5 to 5.5
Niobium (Nb), % 0 to 0.5
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.8 to 1.4
0