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ASTM Grade HH Steel vs. ACI-ASTM CF10SMnN Steel

Both ASTM grade HH steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
34
Fatigue Strength, MPa 150
260
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 580
660
Tensile Strength: Yield (Proof), MPa 270
330

Thermal Properties

Latent Heat of Fusion, J/g 310
340
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 20
15
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 53
45
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 27
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.1
Chromium (Cr), % 24 to 28
16 to 18
Iron (Fe), % 52.9 to 64.8
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 11 to 14
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 2.0
3.5 to 4.5
Sulfur (S), % 0 to 0.040
0 to 0.030