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AISI 317LMN Stainless Steel vs. ACI-ASTM CA15M Steel

Both AISI 317LMN stainless steel and ACI-ASTM CA15M steel are iron alloys. They have 75% 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 317LMN stainless steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
20
Fatigue Strength, MPa 250
330
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
34
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 620
690
Tensile Strength: Yield (Proof), MPa 270
510

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1020
760
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 24
7.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.8
2.1
Embodied Energy, MJ/kg 65
29
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 36
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.8
7.2
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17 to 20
11.5 to 14
Iron (Fe), % 54.4 to 65.4
82.1 to 88.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0.15 to 1.0
Nickel (Ni), % 13.5 to 17.5
0 to 1.0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.040