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ASTM Grade HP Steel vs. ACI-ASTM CK3MCuN Steel

Both ASTM grade HP steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 76% 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 ASTM grade HP steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
39
Fatigue Strength, MPa 130
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 490
620
Tensile Strength: Yield (Proof), MPa 260
290

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
1090
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
29
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 5.8
5.6
Embodied Energy, MJ/kg 82
76
Embodied Water, L/kg 220
190

Common Calculations

PREN (Pitting Resistance) 27
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
200
Resilience: Unit (Modulus of Resilience), kJ/m3 170
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 11
14

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.025
Chromium (Cr), % 24 to 28
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 29.2 to 42.7
49.5 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 0 to 0.5
6.0 to 7.0
Nickel (Ni), % 33 to 37
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010