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SAE-AISI H21 Steel vs. EN 1.8201 Steel

Both SAE-AISI H21 steel and EN 1.8201 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 22 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 EN 1.8201 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
74
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1630
1500
Melting Onset (Solidus), °C 1580
1450
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 27
40
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
7.0
Density, g/cm3 8.5
8.0
Embodied Carbon, kg CO2/kg material 4.5
2.5
Embodied Energy, MJ/kg 68
36
Embodied Water, L/kg 72
59

Common Calculations

PREN (Pitting Resistance) 19
5.7
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23 to 58
22
Strength to Weight: Bending, points 21 to 38
20
Thermal Diffusivity, mm2/s 7.1
11
Thermal Shock Resistance, points 24 to 59
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0.28 to 0.36
0.040 to 0.1
Chromium (Cr), % 3.0 to 3.8
1.9 to 2.6
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.6 to 93.8
93.6 to 96.2
Manganese (Mn), % 0.15 to 0.4
0.1 to 0.6
Molybdenum (Mo), % 0
0.050 to 0.3
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0
0.020 to 0.080
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.0050 to 0.060
Tungsten (W), % 8.5 to 10
1.5 to 1.8
Vanadium (V), % 0.3 to 0.6
0.2 to 0.3