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AISI 310S Stainless Steel vs. AISI 304N Stainless Steel

Both AISI 310S stainless steel and AISI 304N stainless steel are iron alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
190 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 44
9.1 to 45
Fatigue Strength, MPa 250 to 280
220 to 440
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 420 to 470
420 to 700
Tensile Strength: Ultimate (UTS), MPa 600 to 710
620 to 1180
Tensile Strength: Yield (Proof), MPa 270 to 350
270 to 850

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.0
Embodied Energy, MJ/kg 61
43
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 25
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
98 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
180 to 1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
22 to 42
Strength to Weight: Bending, points 20 to 22
21 to 32
Thermal Diffusivity, mm2/s 4.1
4.2
Thermal Shock Resistance, points 14 to 16
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 24 to 26
18 to 20
Iron (Fe), % 48.3 to 57
66.4 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
8.0 to 10.5
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030