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EN 1.5663 Steel vs. ASTM A387 Grade 21 Steel

Both EN 1.5663 steel and ASTM A387 grade 21 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5663 steel and the bottom bar is ASTM A387 grade 21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 450
160 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 470
310 to 370
Tensile Strength: Ultimate (UTS), MPa 750
500 to 590
Tensile Strength: Yield (Proof), MPa 660
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
480
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.1
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.8
Embodied Energy, MJ/kg 31
23
Embodied Water, L/kg 63
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
140 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
18 to 21
Strength to Weight: Bending, points 23
18 to 20
Thermal Shock Resistance, points 22
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 0
2.8 to 3.3
Iron (Fe), % 88.6 to 91.2
94.4 to 96
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.9 to 1.1
Nickel (Ni), % 8.5 to 10
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.025
Vanadium (V), % 0 to 0.010
0