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ACI-ASTM CT15C Steel vs. EN 1.4986 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4986 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
18
Fatigue Strength, MPa 130
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
750
Tensile Strength: Yield (Proof), MPa 190
560

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 560
520
Maximum Temperature: Mechanical, °C 1080
940
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
4.8
Embodied Energy, MJ/kg 88
67
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 20
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
120
Resilience: Unit (Modulus of Resilience), kJ/m3 93
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
16

Alloy Composition

Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0.050 to 0.15
0.040 to 0.1
Chromium (Cr), % 19 to 21
15.5 to 17.5
Iron (Fe), % 40.3 to 49.2
59.4 to 66.6
Manganese (Mn), % 0.15 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
1.6 to 2.0
Nickel (Ni), % 31 to 34
15.5 to 17.5
Niobium (Nb), % 0.5 to 1.5
0.4 to 1.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.5
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030