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S32803 Stainless Steel vs. AISI 317LN Stainless Steel

Both S32803 stainless steel and AISI 317LN stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is S32803 stainless steel and the bottom bar is AISI 317LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 18
45
Fatigue Strength, MPa 350
250
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 86
84
Shear Modulus, GPa 81
79
Shear Strength, MPa 420
430
Tensile Strength: Ultimate (UTS), MPa 680
620
Tensile Strength: Yield (Proof), MPa 560
270

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 510
420
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.7
4.3
Embodied Energy, MJ/kg 53
59
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 36
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
220
Resilience: Unit (Modulus of Resilience), kJ/m3 760
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 4.4
3.9
Thermal Shock Resistance, points 22
14

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.030
Chromium (Cr), % 28 to 29
18 to 20
Iron (Fe), % 62.9 to 67.1
57.9 to 67.9
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.5
3.0 to 4.0
Nickel (Ni), % 3.0 to 4.0
11 to 15
Niobium (Nb), % 0.15 to 0.5
0
Nitrogen (N), % 0 to 0.020
0.1 to 0.22
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.55
0 to 0.75
Sulfur (S), % 0 to 0.0035
0 to 0.030