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ASTM A356 Grade 1 vs. EN 1.4821 Stainless Steel

Both ASTM A356 grade 1 and EN 1.4821 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 29 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 ASTM A356 grade 1 and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
18
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 550
730
Tensile Strength: Yield (Proof), MPa 280
450

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 45
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
500
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0 to 0.35
0.1 to 0.2
Chromium (Cr), % 0
24.5 to 26.5
Iron (Fe), % 98.3 to 100
64.2 to 71.1
Manganese (Mn), % 0 to 0.7
0 to 2.0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.6
0.8 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015