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EN 1.7233 Steel vs. ASTM A387 Grade 5 Steel

Both EN 1.7233 steel and ASTM A387 grade 5 steel are iron alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7233 steel and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 290
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 23
20 to 21
Fatigue Strength, MPa 270 to 530
160 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 450 to 590
310 to 380
Tensile Strength: Ultimate (UTS), MPa 700 to 960
500 to 600
Tensile Strength: Yield (Proof), MPa 380 to 780
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 21
23
Embodied Water, L/kg 53
69

Common Calculations

PREN (Pitting Resistance) 3.3
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1630
140 to 320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 34
18 to 21
Strength to Weight: Bending, points 22 to 28
18 to 20
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 21 to 28
14 to 17

Alloy Composition

Carbon (C), % 0.39 to 0.45
0 to 0.15
Chromium (Cr), % 1.2 to 1.5
4.0 to 6.0
Iron (Fe), % 96.2 to 97.5
92.1 to 95.3
Manganese (Mn), % 0.4 to 0.7
0.3 to 0.6
Molybdenum (Mo), % 0.5 to 0.7
0.45 to 0.65
Phosphorus (P), % 0 to 0.025
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