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EN 1.7725 Steel vs. ACI-ASTM CE30 Steel

Both EN 1.7725 steel and ACI-ASTM CE30 steel are iron alloys. They have 63% 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 1.7725 steel and the bottom bar is ACI-ASTM CE30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250 to 300
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
11
Fatigue Strength, MPa 390 to 550
170
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 830 to 1000
630
Tensile Strength: Yield (Proof), MPa 610 to 860
310

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
19
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
3.4
Embodied Energy, MJ/kg 24
49
Embodied Water, L/kg 54
180

Common Calculations

PREN (Pitting Resistance) 2.8
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
59
Resilience: Unit (Modulus of Resilience), kJ/m3 980 to 1940
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 35
23
Strength to Weight: Bending, points 25 to 28
21
Thermal Diffusivity, mm2/s 11
3.6
Thermal Shock Resistance, points 24 to 29
13

Alloy Composition

Carbon (C), % 0.27 to 0.34
0 to 0.3
Chromium (Cr), % 1.3 to 1.7
26 to 30
Iron (Fe), % 95.7 to 97.5
55.1 to 66
Manganese (Mn), % 0.6 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0.050 to 0.15
0