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ASTM A387 Grade 2 Steel vs. AISI 317LMN Stainless Steel

Both ASTM A387 grade 2 steel and AISI 317LMN stainless steel are iron alloys. They have 62% 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 ASTM A387 grade 2 steel and the bottom bar is AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
45
Fatigue Strength, MPa 190 to 250
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 300 to 350
430
Tensile Strength: Ultimate (UTS), MPa 470 to 550
620
Tensile Strength: Yield (Proof), MPa 260 to 350
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1020
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.6
4.8
Embodied Energy, MJ/kg 20
65
Embodied Water, L/kg 50
170

Common Calculations

PREN (Pitting Resistance) 2.4
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
22
Strength to Weight: Bending, points 17 to 19
20
Thermal Diffusivity, mm2/s 12
3.8
Thermal Shock Resistance, points 14 to 16
14

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
17 to 20
Iron (Fe), % 97.1 to 98.3
54.4 to 65.4
Manganese (Mn), % 0.55 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.6
4.0 to 5.0
Nickel (Ni), % 0
13.5 to 17.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.15 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030