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N08332 Stainless Steel vs. SAE-AISI H21 Steel

Both N08332 stainless steel and SAE-AISI H21 steel are iron alloys. They have 48% of their average alloy composition in common. There are 22 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 N08332 stainless steel and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 520
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1390
1630
Melting Onset (Solidus), °C 1340
1580
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
23
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 5.4
4.5
Embodied Energy, MJ/kg 77
68
Embodied Water, L/kg 190
72

Common Calculations

PREN (Pitting Resistance) 19
19
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 18
23 to 58
Strength to Weight: Bending, points 18
21 to 38
Thermal Diffusivity, mm2/s 3.1
7.1
Thermal Shock Resistance, points 12
24 to 59

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.28 to 0.36
Chromium (Cr), % 17 to 20
3.0 to 3.8
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 38.3 to 48.2
87.6 to 93.8
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Nickel (Ni), % 34 to 37
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.75 to 1.5
0.15 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0 to 0.025
0
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6