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AISI 321H Stainless Steel vs. SAE-AISI M36 Steel

Both AISI 321H stainless steel and SAE-AISI M36 steel are iron alloys. They have 75% 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 M36 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
78
Tensile Strength: Ultimate (UTS), MPa 580
810 to 2190

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1430
1600
Melting Onset (Solidus), °C 1380
1550
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
38
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.2
9.5
Embodied Energy, MJ/kg 46
140
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 18
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
27 to 72
Strength to Weight: Bending, points 20
23 to 44
Thermal Diffusivity, mm2/s 4.0
5.1
Thermal Shock Resistance, points 12
25 to 68

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.8 to 0.9
Chromium (Cr), % 17 to 19
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65.4 to 74
70.1 to 75.5
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
4.6 to 5.5
Nickel (Ni), % 9.0 to 12
0 to 0.3
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
5.5 to 6.5
Vanadium (V), % 0
1.8 to 2.3