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AISI 316 Stainless Steel vs. ASTM A356 Grade 2

Both AISI 316 stainless steel and ASTM A356 grade 2 are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 316 stainless steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 8.0 to 55
25
Fatigue Strength, MPa 210 to 430
200
Poisson's Ratio 0.28
0.29
Reduction in Area, % 80
39
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
510
Tensile Strength: Yield (Proof), MPa 230 to 850
270

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 590
410
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 53
20
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 41
18
Strength to Weight: Bending, points 18 to 31
18
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 11 to 26
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.25
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 62 to 72
97.7 to 99.55
Manganese (Mn), % 0 to 2.0
0 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0.45 to 0.65
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030