MakeItFrom.com
Menu (ESC)

SAE-AISI H21 Steel vs. SAE-AISI 9254 Steel

Both SAE-AISI H21 steel and SAE-AISI 9254 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
660

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1630
1440
Melting Onset (Solidus), °C 1580
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 27
46
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
2.2
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 4.5
1.5
Embodied Energy, MJ/kg 68
20
Embodied Water, L/kg 72
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 58
24
Strength to Weight: Bending, points 21 to 38
22
Thermal Diffusivity, mm2/s 7.1
12
Thermal Shock Resistance, points 24 to 59
20

Alloy Composition

Carbon (C), % 0.28 to 0.36
0.51 to 0.59
Chromium (Cr), % 3.0 to 3.8
0.6 to 0.8
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.6 to 93.8
96.1 to 97.1
Manganese (Mn), % 0.15 to 0.4
0.6 to 0.8
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.5
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 8.5 to 10
0
Vanadium (V), % 0.3 to 0.6
0