EN10297-1 Seamless Steel Tubes
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Description
EN10297-1 Seamless Steel Tubes
Standard: EN10297-1
Seamless circular steel tubes for mechanical and general engineering purposes—technical delivery conditions. Non-alloy and alloy steel tubes.
● Application: for seamless circular tubes made of non-alloy and alloy steels for mechanical and general engineering purposes.
● Size range: O.D.: 6-168mm W.T.: 1-30mm L.: 12000mm max.
Table 1: Steel grade and chemical composition:
| Steel Grade | C | Si | Mn | P | S | ||||
| Name | Number | Min | Max | Min | Max | Min | Max | Max | Max |
| E235 | 1.0308 | – | 0.17 | – | 0.35 | – | 1.20 | 0.030 | 0.035 |
| E275 | 1.0225 | – | 0.21 | – | 0.35 | – | 1.40 | 0.030 | 0.035 |
| E315 | 1.0236 | – | 0.21 | – | 0.30 | – | 1.50 | 0.030 | 0.035 |
| E355b | 1.0580 | – | 0.22 | – | 0.55 | – | 1.60 | 0.030 | 0.035 |
| E470 | 1.0536 | 0.16 | 0.22 | 0.10 | 0.50 | 1.30 | 1.70 | 0.030 | 0.035 |
Table 2: Steel grade and mechanical property:
| Steel Grade | Delivery condition | Minimum tensile property | |||||||||||
| Name | Number | Yield strength (ReH) Mpa b | Tensile strength(Rm) Mpa | Elongation A | |||||||||
| For T in mm | For T in mm | % | |||||||||||
| ≤16 | >16 | >40 | >65 | >80 | ≤16 | >16 | >40 | >65 | L | T | |||
| ≤40 | ≤65 | ≤80 | ≤100 | ≤40 | ≤65 | ≤100 | |||||||
| E235 | 1.0308 | +AR or +N | 235 | 225 | 215 | 205 | 195 | 360 | 360 | 360 | 340 | 25 | 23 |
| E275 | 1.0225 | +AR or +N | 275 | 265 | 255 | 245 | 235 | 410 | 410 | 410 | 380 | 22 | 20 |
| E315 | 1.0236 | +AR or +N | 315 | 305 | 295 | 280 | 270 | 450 | 450 | 450 | 420 | 21 | 19 |
| E355b | 1.0580 | +AR or +N | 355 | 345 | 335 | 315 | 295 | 490 | 490 | 490 | 470 | 20 | 18 |
| E470 | 1.0536 | +AR | 470 | 430 | – | – | – | 650 | 600 | – | – | 17 | 15 |
