E235 steel pipe is seamless circular steel tubes for mechanical and general engineering purpose.
EN10297 standard specifies the technical delivery conditions for seamless circular tubes made of non-alloy and alloy steels for mechanical and general engineering purposes.
E235 steel chemical composition:
| Grade | C max | Si max | Mn max | P max | S max |
| E235 | 0.17 | 0.35 | 1.20 | 0.030 | 0.035 |
E235 steel pipe mechanical properties
| Grade | Yield strength ReH mpa | Tensile strength Rm mpa | Elongation % | ||||||||
| For T in mm | |||||||||||
| E235 | ≤16 | >16 ≤40 | >40 ≤65 | >65 ≤80 | >80 ≤100 | ≤16 | >16 ≤40 | >40≤65 | >65≤100 | | | t |
| 235 | 225 | 215 | 205 | 195 | 360 | 360 | 360 | 340 | 25 | 23 | |
E235 steel pipe tolerances on outside diameter and on thickness
| Outside diameter D mm | Tolerance on D | Tolerances on T for a T/D ratio | ||
| ≤0.025 | >0.025≤0.050 | >0.050 | ||
| D≤219.1 | ±1% or ±0.5mm whichever is the greater | ±12.5% or ±0.4 mm whichever is the greater | ||
| D>219.1 | ±1% | ±20% | ±15% | ±12.5% |
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