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ASTM A225 Steel vs. EN 1.1151 Steel

Both ASTM A225 steel and EN 1.1151 steel are iron alloys.

For each property being compared, the top bar is ASTM A225 steel and the bottom bar is EN 1.1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 250
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 23
21 to 26
Fatigue Strength, MPa 330 to 390
180 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 520
300 to 330
Tensile Strength: Ultimate (UTS), MPa 620 to 830
460 to 520
Tensile Strength: Yield (Proof), MPa 460 to 550
240 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 52
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24 to 25
19
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
98 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
160 to 310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 29
16 to 18
Strength to Weight: Bending, points 21 to 25
17 to 18
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 18 to 24
15 to 16