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AISI 316N Stainless Steel vs. ASTM A387 Grade 2 Steel

Both AISI 316N stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 69% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 316N stainless steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 350
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0 to 39
25
Fatigue Strength, MPa 230 to 450
190 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 420 to 690
300 to 350
Tensile Strength: Ultimate (UTS), MPa 620 to 1160
470 to 550
Tensile Strength: Yield (Proof), MPa 270 to 870
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
420
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.9
1.6
Embodied Energy, MJ/kg 53
20
Embodied Water, L/kg 150
50

Common Calculations

PREN (Pitting Resistance) 27
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 230
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1880
180 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22 to 41
16 to 20
Strength to Weight: Bending, points 20 to 31
17 to 19
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 14 to 26
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.080
0.050 to 0.21
Chromium (Cr), % 16 to 18
0.5 to 0.8
Iron (Fe), % 61.9 to 71.9
97.1 to 98.3
Manganese (Mn), % 0 to 2.0
0.55 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
0.45 to 0.6
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025

Comparable Variants