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ASTM A387 Grade 22L Class 1 vs. EN 1.7379 Steel

Both ASTM A387 grade 22L class 1 and EN 1.7379 steel are iron alloys. Their average alloy composition is basically identical. 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 ASTM A387 grade 22L class 1 and the bottom bar is EN 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 160
320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Tensile Strength: Ultimate (UTS), MPa 500
670
Tensile Strength: Yield (Proof), MPa 230
460

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
460
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
3.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 23
23
Embodied Water, L/kg 58
59

Common Calculations

PREN (Pitting Resistance) 5.6
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.1
0.13 to 0.2
Chromium (Cr), % 2.0 to 2.5
2.0 to 2.5
Iron (Fe), % 95.2 to 96.8
94.5 to 96.5
Manganese (Mn), % 0.3 to 0.6
0.5 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0.9 to 1.2
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030