we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes. Technical delivery conditions
|
Execution |
Size Range |
OD Tolerance |
Wall tolerance |
|
Hot-rolled Tube |
OD – 80 mm OD > 80 mm Wall < 12 mm Wall - 12 mm |
± 0.4 mm± 0.5 % of OD |
± 0.7 mm± (5 % x wall thickness + 0.1 mm |
|
Hot-rolled tube |
All sizes Wall < 12 mm Wall - 12 mm |
+ 0.25/- 0 mm |
± 0.8 mm± (5 % x wall thickness+ 0.2 mm) |
|
Cold Worked tube cold-rolled or cold-drawn |
OD < 40 mm OD 40 - 80 mm OD > 80 Wall Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8 |
+ 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* |
± 0.30 mm± 0.35 mm± 0.40 |
Chemical composition
Mechanical properties
Note:
* - at +QT conditions pipes with outside diameter ≥100 mm and wall thickness ≤ 28 mm can be produced.
EN 10297-2: 2005 Seamless circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
Specified Minimum Yield Strength Of BS EN 10297-2 Material
|
Product |
Yield Strength |
Tensile Strength |
Elongation A5 min |
|||
|
|
MPa min |
ksi min |
MPa min |
MPa min |
ksi min |
Percentage |
|
C22 |
|
|
420 |
– |
– |
21 |
|
C35 |
|
|
520 |
– |
– |
17 |
|
C45 |
|
|
610 |
– |
– |
16 |
|
C60 |
|
|
720 |
– |
– |
13 |
|
20MnV6 |
|
|
600 |
– |
– |
19 |
|
25CrMo4 |
|
|
– |
– |
– |
– |
|
34CrMo4 |
|
|
– |
– |
– |
– |
|
42CrMo4 |
|
|
– |
– |
– |
– |
|
20NiCrMo2-2 |
|
|
– |
– |
– |
– |
|
E235 |
|
|
360 |
– |
– |
25 |
|
E275 |
|
|
410 |
– |
– |
22 |
|
E315 |
|
|
450 |
– |
– |
21 |
|
E355 |
|
|
490 |
– |
– |
20 |
|
E275K2 |
|
|
410 |
– |
– |
22 |
|
E355K2 |
|
|
490 |
– |
– |
20 |
|
C60E |
|
|
710 |
– |
– |
10 |
|
38Mn6 |
|
|
670 |
– |
– |
14 |
|
C22E |
|
|
430 |
– |
– |
24 |
|
C35E |
|
|
550 |
– |
– |
18 |
|
C45E |
|
|
620 |
– |
– |
14 |
|
C10E |
|
|
– |
– |
– |
– |
|
C15E |
|
|
– |
– |
– |
– |
|
C15R |
|
|
– |
– |
– |
– |
