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AISI 321H Stainless Steel vs. SAE-AISI H41 Steel

Both AISI 321H stainless steel and SAE-AISI H41 steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is SAE-AISI H41 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 77
77
Tensile Strength: Ultimate (UTS), MPa 580
710 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1430
1560
Melting Onset (Solidus), °C 1380
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
18
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.2
6.8
Embodied Energy, MJ/kg 46
97
Embodied Water, L/kg 140
97

Common Calculations

PREN (Pitting Resistance) 18
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
24 to 76
Strength to Weight: Bending, points 20
22 to 47
Thermal Diffusivity, mm2/s 4.0
7.7
Thermal Shock Resistance, points 12
20 to 64

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.6 to 0.75
Chromium (Cr), % 17 to 19
3.5 to 4.0
Iron (Fe), % 65.4 to 74
81.8 to 85
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.7
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.3