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ACI-ASTM CT15C Steel vs. ASTM Grade HP Steel

Both ACI-ASTM CT15C steel and ASTM grade HP steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 30 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 ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
5.1
Fatigue Strength, MPa 130
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 500
490
Tensile Strength: Yield (Proof), MPa 190
260

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
1370
Melting Onset (Solidus), °C 1360
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
34
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.1
5.8
Embodied Energy, MJ/kg 88
82
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 20
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
21
Resilience: Unit (Modulus of Resilience), kJ/m3 93
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.35 to 0.75
Chromium (Cr), % 19 to 21
24 to 28
Iron (Fe), % 40.3 to 49.2
29.2 to 42.7
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 31 to 34
33 to 37
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
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040