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ACI-ASTM CB6 Steel vs. S31277 Stainless Steel

Both ACI-ASTM CB6 steel and S31277 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 27 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 ACI-ASTM CB6 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 18
45
Fatigue Strength, MPa 410
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 880
860
Tensile Strength: Yield (Proof), MPa 660
410

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.5
6.7
Embodied Energy, MJ/kg 36
90
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 17
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
320
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
29
Strength to Weight: Bending, points 26
25
Thermal Shock Resistance, points 31
19

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 74.4 to 81
35.5 to 46.2
Manganese (Mn), % 0 to 1.0
0 to 3.0
Molybdenum (Mo), % 0 to 0.5
6.5 to 8.0
Nickel (Ni), % 3.5 to 5.5
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010