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AISI 202 Stainless Steel vs. AISI 309S Stainless Steel

Both AISI 202 stainless steel and AISI 309S stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 202 stainless steel and the bottom bar is AISI 309S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
42
Fatigue Strength, MPa 290 to 330
210
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 490 to 590
400
Tensile Strength: Ultimate (UTS), MPa 700 to 980
580
Tensile Strength: Yield (Proof), MPa 310 to 580
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 910
1080
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

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
19
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 40
51
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 20
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
190
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 35
21
Strength to Weight: Bending, points 23 to 29
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15 to 21
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 17 to 19
22 to 24
Iron (Fe), % 63.5 to 71.5
58.1 to 66
Manganese (Mn), % 7.5 to 10
0 to 2.0
Nickel (Ni), % 4.0 to 6.0
12 to 15
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030