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AISI 317 Stainless Steel vs. ACI-ASTM CE8MN Steel

Both AISI 317 stainless steel and ACI-ASTM CE8MN steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 317 stainless steel and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 35 to 55
29
Fatigue Strength, MPa 250 to 330
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 580 to 710
750
Tensile Strength: Yield (Proof), MPa 250 to 420
500

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 590
1100
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 21
21
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
4.2
Embodied Energy, MJ/kg 59
58
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 31
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 260
190
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 430
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 25
27
Strength to Weight: Bending, points 20 to 22
23
Thermal Diffusivity, mm2/s 4.1
4.2
Thermal Shock Resistance, points 12 to 15
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 18 to 20
22.5 to 25.5
Iron (Fe), % 58 to 68
56 to 66.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
3.0 to 4.5
Nickel (Ni), % 11 to 15
8.0 to 11
Nitrogen (N), % 0 to 0.1
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040