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S32906 Stainless Steel vs. S32803 Stainless Steel

Both S32906 stainless steel and S32803 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 95% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S32906 stainless steel and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
210
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 28
18
Fatigue Strength, MPa 460
350
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
81
Shear Strength, MPa 550
420
Tensile Strength: Ultimate (UTS), MPa 850
680
Tensile Strength: Yield (Proof), MPa 620
560

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
510
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
19
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.7
3.7
Embodied Energy, MJ/kg 52
53
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 41
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 950
760
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 3.6
4.4
Thermal Shock Resistance, points 23
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 28 to 30
28 to 29
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
62.9 to 67.1
Manganese (Mn), % 0.8 to 1.5
0 to 0.5
Molybdenum (Mo), % 1.5 to 2.6
1.8 to 2.5
Nickel (Ni), % 5.8 to 7.5
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0.3 to 0.4
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.0035