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ASTM A356 Grade 1 vs. AISI 305 Stainless Steel

Both ASTM A356 grade 1 and AISI 305 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 1 and the bottom bar is AISI 305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
34 to 45
Fatigue Strength, MPa 200
210 to 280
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 550
580 to 710
Tensile Strength: Yield (Proof), MPa 280
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
540
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 18
45
Embodied Water, L/kg 45
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
200 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 210
130 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
20 to 25
Strength to Weight: Bending, points 19
20 to 23
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 18
13 to 15

Alloy Composition

Carbon (C), % 0 to 0.35
0 to 0.12
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.3 to 100
65.1 to 72.5
Manganese (Mn), % 0 to 0.7
0 to 2.0
Nickel (Ni), % 0
10.5 to 13
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030