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AISI 309 Stainless Steel vs. AISI 310 Stainless Steel

Both AISI 309 stainless steel and AISI 310 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is AISI 310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
180 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 47
34 to 45
Fatigue Strength, MPa 250 to 280
240 to 280
Poisson's Ratio 0.27
0.27
Rockwell B Hardness 84
82
Shear Modulus, GPa 78
78
Shear Strength, MPa 420 to 470
420 to 470
Tensile Strength: Ultimate (UTS), MPa 600 to 710
600 to 710
Tensile Strength: Yield (Proof), MPa 260 to 350
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 980
1040
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
15
Thermal Expansion, µm/m-K 15
15

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 19
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
4.3
Embodied Energy, MJ/kg 51
61
Embodied Water, L/kg 170
190

Common Calculations

PREN (Pitting Resistance) 23
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
170 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
21 to 25
Strength to Weight: Bending, points 20 to 23
20 to 22
Thermal Diffusivity, mm2/s 4.3
3.9
Thermal Shock Resistance, points 14 to 16
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.25
Chromium (Cr), % 22 to 24
24 to 26
Iron (Fe), % 58 to 66
48.2 to 57
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 12 to 15
19 to 22
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants