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S66286 Stainless Steel vs. ASTM A387 Grade 2 Steel

Both S66286 stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 56% of their average alloy composition in common. There are 31 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 S66286 stainless steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 40
25
Fatigue Strength, MPa 240 to 410
190 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 420 to 630
300 to 350
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
470 to 550
Tensile Strength: Yield (Proof), MPa 280 to 670
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 920
420
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
2.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 6.0
1.6
Embodied Energy, MJ/kg 87
20
Embodied Water, L/kg 170
50

Common Calculations

PREN (Pitting Resistance) 19
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
180 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 36
16 to 20
Strength to Weight: Bending, points 20 to 28
17 to 19
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 13 to 22
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.050 to 0.21
Chromium (Cr), % 13.5 to 16
0.5 to 0.8
Iron (Fe), % 49.1 to 59.5
97.1 to 98.3
Manganese (Mn), % 0 to 2.0
0.55 to 0.8
Molybdenum (Mo), % 1.0 to 1.5
0.45 to 0.6
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0

Comparable Variants