Seamless Steel Pipe

EN 10216 Steel Tube

EN 10216 seamless steel pipe is considered for pressure purposes. This feature of the stainless steel seamless pipe is essential because this type of pipes is constantly put to use where extreme conditions prevail and where safety of people and the trouble-free operation of plant and equipment must be ensured. our seamless stainless steel pipes are made to withstand the greatest heat and the highest pressure; they are unaffected by acids and don't give corrosion a chance! a seamless stainless steel pipe or tube can pass through more than 100 production steps before taking its final form and quality.

Wall Thickness: up to 100 mm

Out Dimensions: 14mm-509mm

Application: Pressure equipment, pressure pipeline, processing piping, boiler, etc.

Manufacture: Seamless process

Length: Fixed(6m,9m,12,24m) or normal length(5-12m)

Ends: Plain End, Beveled End, Treaded

Standard

Specification

EN 10216, Seamless steel tubes for pressure purposes. 

The pipes are manufactured with the diameters between 21,3 - 660 mm and with the wall thickness of up to 100 mm in the case of hot rolling, and with the diameters between 10,2 - 108 mm and the wall thickness of up to 12,5 mm in the case of cold drawing.

Application: Pressure equipment, pressure pipeline, processing piping, boiler, etc.

Grades: P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2


Chemical composition of EN 10216-1  P195、P235、P265:

Standard

Grade

Chemical composition (%)

C

Si

Mn

P

S

Cr

Mo

Ni

Cu

Nb

Ti

V

Cr+Cu+Mo+Ni

EN10216-1

P195

≤0.13

≤0.35

≤0.70

≤0.025

≤0.020

≤0.30

≤0.08

≤0.30

≤0.30

≤0.01

≤0.04

≤0.02

≤0.70

P235

≤0.16

≤0.35

≤1.20

≤0.025

≤0.020

≤0.30

≤0.08

≤0.30

≤0.30

≤0.01

≤0.04

≤0.02

≤0.70

P265

≤0.20

≤0.40

≤1.40

≤0.025

≤0.020

≤0.30

≤0.08

≤0.30

≤0.30

≤0.01

≤0.04

≤0.02

≤0.70


Mechanical properties of  EN 10216-1 P195、P235、P265:

Standard

Grade

Tensile strength(MPa)

Yield strength(MPa)

Elongation(%)

EN 10216-1

P195

320~440

≥195

≥27

P235

360~500

≥235

≥25

P265

410~570

≥265

≥23


Tolerances:

Tolerances on diameter and thickness

Out-of-roundness is included in the tolerances on outside diameter and eccentricity is included in the tolerances on wall thickness


Tolerances on outside diameter and on wall thickness:

Outside diameter (D mm)

Tolerances on D

Tolerances on T for a T/D ratio

≤0,025

>0,025

≤ 0,050

>0,050

≤ 0,10

>0,10

D ≥219,1

±1% or 0,5 mm whichever is the greater

±12,5 % or ±0,4 mm whichever is the greater

D<219,1

±20 %

±15 %

±12,5 %

±10 %  a

a : For outside diameters D 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T


Tolerances on exact lengths:

Length L

Tolerance on exact length

L ≤ 6000

+10

0

6000 <L ≤12 000

+15

0

L >12 000

+by agreement

0

Process

The tubes shall be manufactured by a seamless process. Hot formed or cold finished

 

EN 10216-1 Standard specifies the technical delivery conditions for two qualities TR1 and TR2 of seamless tubes of circular cross section with specified room temperature properties made of non-alloy quality steel.

Packing

  • OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

    OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

  • OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

    OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

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