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AISI 202 Stainless Steel vs. S31260 Stainless Steel

Both AISI 202 stainless steel and S31260 stainless steel are iron alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is AISI 202 stainless steel and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
23
Fatigue Strength, MPa 290 to 330
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 490 to 590
500
Tensile Strength: Ultimate (UTS), MPa 700 to 980
790
Tensile Strength: Yield (Proof), MPa 310 to 580
540

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.9
Embodied Energy, MJ/kg 40
53
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 20
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
160
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
720
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 35
28
Strength to Weight: Bending, points 23 to 29
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 15 to 21
22

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 63.5 to 71.5
59.6 to 67.6
Manganese (Mn), % 7.5 to 10
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 4.0 to 6.0
5.5 to 7.5
Nitrogen (N), % 0 to 0.25
0.1 to 0.3
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5