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AISI 321H Stainless Steel vs. S32615 Stainless Steel

Both AISI 321H stainless steel and S32615 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
28
Fatigue Strength, MPa 200
180
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
46
Shear Modulus, GPa 77
75
Shear Strength, MPa 400
400
Tensile Strength: Ultimate (UTS), MPa 580
620
Tensile Strength: Yield (Proof), MPa 230
250

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 480
410
Maximum Temperature: Mechanical, °C 940
990
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 16
24
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.2
4.4
Embodied Energy, MJ/kg 46
63
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
140
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.070
Chromium (Cr), % 17 to 19
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 65.4 to 74
46.4 to 57.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 9.0 to 12
19 to 22
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
4.8 to 6.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.7
0