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S31260 Stainless Steel vs. S32803 Stainless Steel

Both S31260 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 (1, in this case) are not shown.

For each property being compared, the top bar is S31260 stainless steel and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 23
18
Fatigue Strength, MPa 370
350
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
81
Shear Strength, MPa 500
420
Tensile Strength: Ultimate (UTS), MPa 790
680
Tensile Strength: Yield (Proof), MPa 540
560

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
510
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
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 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.9
3.7
Embodied Energy, MJ/kg 53
53
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 39
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 720
760
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 4.3
4.4
Thermal Shock Resistance, points 22
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 24 to 26
28 to 29
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 59.6 to 67.6
62.9 to 67.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 2.5 to 3.5
1.8 to 2.5
Nickel (Ni), % 5.5 to 7.5
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0.1 to 0.3
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.0035
Tungsten (W), % 0.1 to 0.5
0