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ASTM A372 Grade L Steel vs. AISI 317L Stainless Steel

Both ASTM A372 grade L steel and AISI 317L stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade L steel and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
44
Fatigue Strength, MPa 670
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
82
Shear Strength, MPa 700
380
Tensile Strength: Ultimate (UTS), MPa 1160
550
Tensile Strength: Yield (Proof), MPa 1040
250

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
1010
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
4.3
Embodied Energy, MJ/kg 22
59
Embodied Water, L/kg 54
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
200
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 41
19
Strength to Weight: Bending, points 31
19
Thermal Diffusivity, mm2/s 12
3.8
Thermal Shock Resistance, points 34
12

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.030
Chromium (Cr), % 0.7 to 0.9
18 to 20
Iron (Fe), % 95.2 to 96.3
58 to 68
Manganese (Mn), % 0.6 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.3
3.0 to 4.0
Nickel (Ni), % 1.7 to 2.0
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030