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ACI-ASTM CT15C Steel vs. AISI 301LN Stainless Steel

Both ACI-ASTM CT15C steel and AISI 301LN stainless steel are iron alloys. They have 70% 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 AISI 301LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
23 to 51
Fatigue Strength, MPa 130
270 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
630 to 1060
Tensile Strength: Yield (Proof), MPa 190
270 to 770

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1080
890
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.1
2.7
Embodied Energy, MJ/kg 88
39
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
220 to 290
Resilience: Unit (Modulus of Resilience), kJ/m3 93
180 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22 to 38
Strength to Weight: Bending, points 17
21 to 30
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
14 to 24

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 19 to 21
16 to 18
Iron (Fe), % 40.3 to 49.2
70.7 to 77.9
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Nickel (Ni), % 31 to 34
6.0 to 8.0
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.070 to 0.2
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 0.030