Standard

EN 10297

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


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



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