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AISI 301 Stainless Steel vs. S31803 Stainless Steel

Both AISI 301 stainless steel and S31803 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 301 stainless steel and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 440
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 7.4 to 46
29
Fatigue Strength, MPa 210 to 600
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 410 to 860
460
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
710
Tensile Strength: Yield (Proof), MPa 230 to 1080
500

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 840
1060
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
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 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 39
49
Embodied Water, L/kg 130
160

Common Calculations

PREN (Pitting Resistance) 18
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 52
25
Strength to Weight: Bending, points 20 to 37
23
Thermal Diffusivity, mm2/s 4.2
4.3
Thermal Shock Resistance, points 12 to 31
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16 to 18
21 to 23
Iron (Fe), % 70.7 to 78
63.7 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 6.0 to 8.0
4.5 to 6.5
Nitrogen (N), % 0 to 0.1
0.080 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020