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AISI 317LMN Stainless Steel vs. ASTM A356 Grade 8

Both AISI 317LMN stainless steel and ASTM A356 grade 8 are iron alloys. They have 63% 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 317LMN stainless steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
21
Fatigue Strength, MPa 250
270
Poisson's Ratio 0.28
0.29
Reduction in Area, % 56
50
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 620
630
Tensile Strength: Yield (Proof), MPa 270
390

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1020
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
38
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.8
2.0
Embodied Energy, MJ/kg 65
26
Embodied Water, L/kg 170
55

Common Calculations

PREN (Pitting Resistance) 36
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 17 to 20
1.0 to 1.5
Iron (Fe), % 54.4 to 65.4
95.4 to 97.4
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 4.0 to 5.0
0.9 to 1.2
Nickel (Ni), % 13.5 to 17.5
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15