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ASTM A321 Carbon Steel vs. EN 1.1132 Steel

Both ASTM A321 carbon steel and EN 1.1132 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is ASTM A321 carbon steel and the bottom bar is EN 1.1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
12 to 24
Fatigue Strength, MPa 270
180 to 280
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39
63 to 73
Shear Modulus, GPa 73
73
Shear Strength, MPa 420
260 to 310
Tensile Strength: Ultimate (UTS), MPa 670
370 to 490
Tensile Strength: Yield (Proof), MPa 390
240 to 400

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 51
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
38 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 400
160 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
13 to 17
Strength to Weight: Bending, points 22
15 to 18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 21
12 to 16

Alloy Composition

Carbon (C), % 0 to 0.55
0.13 to 0.17
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.1 to 99.25
98.6 to 99.57
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.025