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AISI 309S Stainless Steel vs. ACI-ASTM CE30 Steel

Both AISI 309S stainless steel and ACI-ASTM CE30 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 309S stainless steel and the bottom bar is ACI-ASTM CE30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 42
11
Fatigue Strength, MPa 210
170
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 580
630
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.4
Embodied Energy, MJ/kg 51
49
Embodied Water, L/kg 170
180

Common Calculations

PREN (Pitting Resistance) 23
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
59
Resilience: Unit (Modulus of Resilience), kJ/m3 140
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
3.6
Thermal Shock Resistance, points 13
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.3
Chromium (Cr), % 22 to 24
26 to 30
Iron (Fe), % 58.1 to 66
55.1 to 66
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 12 to 15
8.0 to 11
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040