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SAE-AISI H21 Steel vs. AWS E316LMn

Both SAE-AISI H21 steel and AWS E316LMn are iron alloys. They have 58% of their average alloy composition in common. There are 20 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 E316LMn.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1630
1420
Melting Onset (Solidus), °C 1580
1370
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 4.5
4.6
Embodied Energy, MJ/kg 68
64
Embodied Water, L/kg 72
180

Common Calculations

PREN (Pitting Resistance) 19
32
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 58
22
Strength to Weight: Bending, points 21 to 38
20
Thermal Shock Resistance, points 24 to 59
15

Alloy Composition

Carbon (C), % 0.28 to 0.36
0 to 0.040
Chromium (Cr), % 3.0 to 3.8
18 to 21
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 87.6 to 93.8
47.5 to 59.4
Manganese (Mn), % 0.15 to 0.4
5.0 to 8.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
15 to 18
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
0 to 0.9
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