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S15500 Stainless Steel vs. ACI-ASTM CB6 Steel

Both S15500 stainless steel and ACI-ASTM CB6 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S15500 stainless steel and the bottom bar is ACI-ASTM CB6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.8 to 16
18
Fatigue Strength, MPa 350 to 650
410
Poisson's Ratio 0.28
0.28
Reduction in Area, % 17 to 40
40
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
880
Tensile Strength: Yield (Proof), MPa 590 to 1310
660

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 820
870
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 39
36
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 15
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 53
32
Strength to Weight: Bending, points 26 to 37
26
Thermal Diffusivity, mm2/s 4.6
4.6
Thermal Shock Resistance, points 30 to 50
31

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.060
Chromium (Cr), % 14 to 15.5
15.5 to 17.5
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
74.4 to 81
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 3.5 to 5.5
3.5 to 5.5
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030