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SAE-AISI H21 Steel vs. EN 1.0314 Steel

Both SAE-AISI H21 steel and EN 1.0314 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is EN 1.0314 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
73
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
320 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1630
1470
Melting Onset (Solidus), °C 1580
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 27
53
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.8
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 4.5
1.4
Embodied Energy, MJ/kg 68
18
Embodied Water, L/kg 72
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23 to 58
11 to 14
Strength to Weight: Bending, points 21 to 38
13 to 15
Thermal Diffusivity, mm2/s 7.1
14
Thermal Shock Resistance, points 24 to 59
10 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.28 to 0.36
0 to 0.030
Chromium (Cr), % 3.0 to 3.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.6 to 93.8
99.365 to 99.78
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.4
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 8.5 to 10
0
Vanadium (V), % 0.3 to 0.6
0