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SAE-AISI H21 Steel vs. AWS E330

Both SAE-AISI H21 steel and AWS E330 are iron alloys. They have 51% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is AWS E330.

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
76
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
580

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1630
1400
Melting Onset (Solidus), °C 1580
1350
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 27
12
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.5
8.1
Embodied Carbon, kg CO2/kg material 4.5
5.4
Embodied Energy, MJ/kg 68
75
Embodied Water, L/kg 72
180

Common Calculations

PREN (Pitting Resistance) 19
17
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23 to 58
20
Strength to Weight: Bending, points 21 to 38
19
Thermal Diffusivity, mm2/s 7.1
3.2
Thermal Shock Resistance, points 24 to 59
16

Alloy Composition

Carbon (C), % 0.28 to 0.36
0.18 to 0.25
Chromium (Cr), % 3.0 to 3.8
14 to 17
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 87.6 to 93.8
40.7 to 51.8
Manganese (Mn), % 0.15 to 0.4
1.0 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.3
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 8.5 to 10
0
Vanadium (V), % 0.3 to 0.6
0