EN 1.0033 (E155) Non-Alloy Steel
EN 1.0033 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. 1.0033 is the EN numeric designation for this material. E155 is the EN chemical designation.
It can have a very low tensile strength and has a fairly high thermal conductivity among wrought carbon or non-alloy steels.
The properties of EN 1.0033 steel include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.0033 steel to: wrought carbon or non-alloy steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
86 to 96
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
17 to 32 %
Fatigue Strength
120 to 140 MPa 17 to 20 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
73 GPa 11 x 106 psi
Shear Strength
200 MPa 28 to 30 x 103 psi
Tensile Strength: Ultimate (UTS)
300 to 330 MPa 43 to 48 x 103 psi
Tensile Strength: Yield (Proof)
150 to 200 MPa 22 to 28 x 103 psi
Thermal Properties
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C 750 °F
Melting Completion (Liquidus)
1470 °C 2670 °F
Melting Onset (Solidus)
1420 °C 2600 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
53 W/m-K 31 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
7.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.0 % IACS
Otherwise Unclassified Properties
Base Metal Price
1.8 % relative
Density
7.9 g/cm3 490 lb/ft3
Embodied Carbon
1.4 kg CO2/kg material
Embodied Energy
18 MJ/kg 7.8 x 103 BTU/lb
Embodied Water
45 L/kg 5.4 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
48 to 83 MJ/m3
Resilience: Unit (Modulus of Resilience)
63 to 100 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
10 to 12 points
Strength to Weight: Bending
13 to 14 points
Thermal Diffusivity
14 mm2/s
Thermal Shock Resistance
9.4 to 10 points
Alloy Composition
| Fe | 98.8 to 100 | |
| Mn | 0 to 0.7 | |
| Si | 0 to 0.35 | |
| C | 0 to 0.11 | |
| P | 0 to 0.045 | |
| S | 0 to 0.045 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10296-1: Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes
Carbon Steel Handbook, D. Gandy, 2007
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008
Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015