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S31260 Stainless Steel vs. AISI 304N Stainless Steel

Both S31260 stainless steel and AISI 304N stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is S31260 stainless steel and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
9.1 to 45
Fatigue Strength, MPa 370
220 to 440
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 500
420 to 700
Tensile Strength: Ultimate (UTS), MPa 790
620 to 1180
Tensile Strength: Yield (Proof), MPa 540
270 to 850

Thermal Properties

Latent Heat of Fusion, J/g 300
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 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
3.0
Embodied Energy, MJ/kg 53
43
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 39
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
98 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 720
180 to 1830
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22 to 42
Strength to Weight: Bending, points 24
21 to 32
Thermal Diffusivity, mm2/s 4.3
4.2
Thermal Shock Resistance, points 22
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 24 to 26
18 to 20
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 59.6 to 67.6
66.4 to 73.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.5 to 7.5
8.0 to 10.5
Nitrogen (N), % 0.1 to 0.3
0.1 to 0.16
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.1 to 0.5
0