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EN 10297 Seamless Steel Tube for Mechanical Engineering

Based on EN 10297 standard, the seamless steel tube is ideal for mechanical engineering. To meet different demands, Luxing Pipe provides industrial pipe with different mass range, including carbon steel and alloy steel tubing. Our cleverly designed product comes with corrosion resistance, fine finish and long useful life.

Carbon steel pipe, alloy steel tube and other kinds of industrial tubes can be customized, so as to satisfy your requirements. According to market requirements, we will probably offer the steel gas fitting, stainless steel pipe and welding steel pipe in the future.

Parameters
1. Standard: EN 10297-1, 2
2. Steel grade: E235, E275, E315, E355, E470
3. Delivery condition: Normalizing or rolling
4. Outer diameter: 70MM-610MM
5. Wall thickness: 6MM-35MM
6. Tolerance: In line with EN 10297-1 standard
7. Length: Customization
8. Certificate: EN 10204/3.1

Delivery Condition of Seamless Steel Tube

Steel grade Delivery condition
E235 Normalizing or rolling
E275 Normalizing or rolling
E315 Normalizing or rolling
E355 Normalizing or rolling
E470 Normalizing

Chemical Composition (Heat Analysis)%

Steel grade C Si Mn P S
Min. Max. Min. Max. Min. Max. Max. Max.
E235 - - 0.17 - - 0.35 - - 1.20 0.030 0.035
E275 - - 0.21 - - 0.35 - - 1.40 0.030 0.035
E315 - - 0.21 - - 0.30 - - 1.50 0.030 0.035
E355 - - 0.22 - - 0.55 - - 1.60 0.030 0.035
E470 0.16 0.22 0.10 0.50 1.30 1.70 0.030 0.035

Mechanical Property

Steel grade Min. yield strength Min. tensile strength Min. elongation (%)
Mpa Mpa
T(mm) T(mm) I
≤16 >16 ≤16 >16
≤40 ≤40
E235 235 225 360 360 25
E275 275 265 410 410 22
E315 315 305 450 450 21
E355 355 345 490 490 20
E470 470 430 650 600 17
Notes:
1. “T” stands for wall thickness.
2. “I” stands for longitudinal.

Specification of Seamless Steel Tube

Wall thickness 6.3 7.1 8 8.8 10 11 12.5 14.2 16 17.5 20 22.2 25 28 30 35 MM
Outer diameter
70 X X X X X X X X 70.0
73 X X X X X X X X 73.0
76.1 X X X X X X X X 76.1
82.5 X X X X X X X X 82.5
88.9 X X X X X X X X X 88.9
95 X X X X X X X X X 95.0
101.6 X X X X X X X X X 101.6
108 X X X X X X X X X 108.0
114.3 X X X X X X X X X 114.3
121 X X X X X X X X X 121.0
127 X X X X X X X X X X 127.0
139.7 X X X X X X X X X X 139.7
146 X X X X X X X X X X 146.0
152.4 X X X X X X X X X X 152.4
159 X X X X X X X X X X X 159.0
168.3 X X X X X X X X X X X 168.3
177.8 X X X X X X X X X X X X 177.8
193.7 X X X X X X X X X X X X X X 193.7
203 X X X X X X X X X X X X X X 203.0
219.1 X X X X X X X X X X X X X X 219.1
229 X X X X X X X X X X X 229.0
244.5 X X X X X X X X X X X X X X 244.5
254 X X X X X X X X X X X X X X 254.0
267 X X X X X X X X X X X X X X 267.0
273 X X X X X X X X X X X X X X 273.0
298.5 X X X X X X X X X X X X 298.5
305 X X X X X X X X X X X X 305.0
323.9 X X X X X X X X X X X X 323.9
355.6 X X X X X X X X X X X X X 355.6
368 X X X X X X X X X X X X X 368.0
381 X X X X X X X X X X X X X 381.0
394 X X X X X X X X X X X X X 394.0
406.4 X X X X X X X X X X X X X 406.4
419 X X X X X X X X X X X X X 419.0
445 X X X X X X X X X X X X X 445.0
457.2 X X X X X X X X X X X X X 457.0
470 X X X X X X X X X X X X X 470.0
508 X X X X X X X X X X X 508.0
521 X X X X X X X X X X X 521.0
530 X X X X X X X X X X X 530.0
559 X X X X X X X X X X X 559.0
610 X X X X X X X X X 610.0
Outer diameter 6.3 7.1 8 8.8 10 11 12.5 14.2 16 17.5 20 22.2 25 28 30 35 MM
Wall thickness
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