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ASTM A372 Grade H Steel vs. C90500 Gun Metal

ASTM A372 grade H steel belongs to the iron alloys classification, while C90500 gun metal belongs to the copper alloys. 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 A372 grade H steel and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20 to 22
20
Fatigue Strength, MPa 310 to 380
90
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 650 to 910
320
Tensile Strength: Yield (Proof), MPa 430 to 550
160

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
1000
Melting Onset (Solidus), °C 1420
850
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 45
75
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
35
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 20
59
Embodied Water, L/kg 49
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
54
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
110
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 23 to 32
10
Strength to Weight: Bending, points 21 to 27
12
Thermal Diffusivity, mm2/s 12
23
Thermal Shock Resistance, points 19 to 27
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0.3 to 0.4
0
Chromium (Cr), % 0.4 to 0.65
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 97.3 to 98.3
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.75 to 1.1
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.015
0 to 1.5
Silicon (Si), % 0.15 to 0.35
0 to 0.0050
Sulfur (S), % 0 to 0.010
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Zinc (Zn), % 0
1.0 to 3.0
Residuals, % 0
0 to 0.3