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ACI-ASTM CT15C Steel vs. EN 1.4371 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4371 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45 to 51
Fatigue Strength, MPa 130
290 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
740 to 750
Tensile Strength: Yield (Proof), MPa 190
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1080
880
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.1
2.6
Embodied Energy, MJ/kg 88
38
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
270 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 93
250 to 300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 19 to 21
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 40.3 to 49.2
66.7 to 74.4
Manganese (Mn), % 0.15 to 1.5
6.0 to 8.0
Nickel (Ni), % 31 to 34
3.5 to 5.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015