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SAE-AISI H21 Steel vs. C86700 Bronze

SAE-AISI H21 steel belongs to the iron alloys classification, while C86700 bronze belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 76
41
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
630

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Melting Completion (Liquidus), °C 1630
880
Melting Onset (Solidus), °C 1580
860
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 27
89
Thermal Expansion, µm/m-K 11
20

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 4.5
2.9
Embodied Energy, MJ/kg 68
49
Embodied Water, L/kg 72
340

Common Calculations

Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 23 to 58
22
Strength to Weight: Bending, points 21 to 38
21
Thermal Diffusivity, mm2/s 7.1
28
Thermal Shock Resistance, points 24 to 59
21

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Carbon (C), % 0.28 to 0.36
0
Chromium (Cr), % 3.0 to 3.8
0
Copper (Cu), % 0 to 0.25
55 to 60
Iron (Fe), % 87.6 to 93.8
1.0 to 3.0
Lead (Pb), % 0
0.5 to 1.5
Manganese (Mn), % 0.15 to 0.4
1.0 to 3.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.5
Tungsten (W), % 8.5 to 10
0
Vanadium (V), % 0.3 to 0.6
0
Zinc (Zn), % 0
30 to 38
Residuals, % 0
0 to 1.0