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AISI 321H Stainless Steel vs. S32053 Stainless Steel

Both AISI 321H stainless steel and S32053 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is S32053 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
46
Fatigue Strength, MPa 200
310
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
56
Rockwell B Hardness 82
83
Shear Modulus, GPa 77
80
Shear Strength, MPa 400
510
Tensile Strength: Ultimate (UTS), MPa 580
730
Tensile Strength: Yield (Proof), MPa 230
330

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 480
440
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.2
6.1
Embodied Energy, MJ/kg 46
83
Embodied Water, L/kg 140
210

Common Calculations

PREN (Pitting Resistance) 18
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
270
Resilience: Unit (Modulus of Resilience), kJ/m3 140
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 17 to 19
22 to 24
Iron (Fe), % 65.4 to 74
41.7 to 48.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.0
Nickel (Ni), % 9.0 to 12
24 to 26
Nitrogen (N), % 0
0.17 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.7
0