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ACI-ASTM CT15C Steel vs. EN 1.4848 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4848 stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is EN 1.4848 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
9.0
Fatigue Strength, MPa 130
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 500
510
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Corrosion, °C 560
440
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.1
4.4
Embodied Energy, MJ/kg 88
63
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 20
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
38
Resilience: Unit (Modulus of Resilience), kJ/m3 93
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.3 to 0.5
Chromium (Cr), % 19 to 21
24 to 27
Iron (Fe), % 40.3 to 49.2
45.4 to 55.7
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 31 to 34
19 to 22
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.5
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030