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EN 1.4371 Stainless Steel vs. ACI-ASTM CT15C Steel

Both EN 1.4371 stainless steel and ACI-ASTM CT15C 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 EN 1.4371 stainless steel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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