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EN 1.3555 Steel vs. SAE-AISI H21 Steel

Both EN 1.3555 steel and SAE-AISI H21 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 770
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1500
1630
Melting Onset (Solidus), °C 1450
1580
Specific Heat Capacity, J/kg-K 460
440
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 5.6
4.5
Embodied Energy, MJ/kg 81
68
Embodied Water, L/kg 90
72

Common Calculations

PREN (Pitting Resistance) 18
19
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 27
23 to 58
Strength to Weight: Bending, points 23
21 to 38
Thermal Shock Resistance, points 22
24 to 59

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.28 to 0.36
Chromium (Cr), % 3.9 to 4.3
3.0 to 3.8
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 85.4 to 87.7
87.6 to 93.8
Manganese (Mn), % 0.15 to 0.35
0.15 to 0.4
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 3.2 to 3.6
0 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.1 to 0.25
0.15 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0 to 0.15
8.5 to 10
Vanadium (V), % 1.0 to 1.3
0.3 to 0.6