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EN 1.0117 Steel vs. ASTM A387 Grade 21L Class 1

Both EN 1.0117 steel and ASTM A387 grade 21L class 1 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.0117 steel and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
21
Fatigue Strength, MPa 160
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 270
310
Tensile Strength: Ultimate (UTS), MPa 430
500
Tensile Strength: Yield (Proof), MPa 220
230

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
480
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
41
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
4.1
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 47
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88
84
Resilience: Unit (Modulus of Resilience), kJ/m3 130
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0 to 0.19
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 97.6 to 100
94.4 to 96.1
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.025