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EN 1.1221 Steel vs. ASTM A387 Grade 5 Steel

Both EN 1.1221 steel and ASTM A387 grade 5 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 250
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 21
20 to 21
Fatigue Strength, MPa 240 to 340
160 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
74
Shear Strength, MPa 450 to 520
310 to 380
Tensile Strength: Ultimate (UTS), MPa 730 to 870
500 to 600
Tensile Strength: Yield (Proof), MPa 390 to 550
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 47
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 800
140 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 31
18 to 21
Strength to Weight: Bending, points 23 to 26
18 to 20
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 23 to 28
14 to 17

Alloy Composition

Carbon (C), % 0.57 to 0.65
0 to 0.15
Chromium (Cr), % 0 to 0.4
4.0 to 6.0
Iron (Fe), % 97.1 to 98.8
92.1 to 95.3
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.45 to 0.65
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.025

Comparable Variants