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ASTM A369 Grade FP2 vs. ACI-ASTM CN7MS Steel

Both ASTM A369 grade FP2 and ACI-ASTM CN7MS steel are iron alloys. They have 51% of their average alloy composition in common. There are 29 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 A369 grade FP2 and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
39
Fatigue Strength, MPa 160
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 430
540
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 420
1040
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
28
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
5.1
Embodied Energy, MJ/kg 20
71
Embodied Water, L/kg 50
180

Common Calculations

PREN (Pitting Resistance) 2.5
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
170
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 13
3.2
Thermal Shock Resistance, points 13
13

Alloy Composition

Carbon (C), % 0.1 to 0.2
0 to 0.070
Chromium (Cr), % 0.5 to 0.81
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 97.4 to 98.6
45.4 to 53.5
Manganese (Mn), % 0.3 to 0.61
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
2.5 to 3.0
Nickel (Ni), % 0
22 to 25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.3
2.5 to 3.5
Sulfur (S), % 0 to 0.025
0 to 0.030