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Annealed Black Flat End Tube – HR


Quality: P235TR1 – S235JR

Standard : TS EN 10217-1 – ISO 65 – ASTM A-53 – TS EN 10255

Outer Diameter : 21,3 – 339,7 mm

 Wall Thickness : 1,9 mm – 12,7 mm

 Length : 3,00 – 18,30 m

Kategoriler:

Annealed Black Flat End Pipe

What is Annealed Black Flat End Pipe?

Our Annealed Black Flat End Pipes; It is CE certified. Each of our pipes is subjected to leakage test under 50 bar pressure and eddy current (E/C) test. Annealing is a thermal procedure and it is a procedure applied at 1050 °C, which causes positive changes in the properties of the pipe such as strength, hardness and elasticity, and changes the material on a micro scale. Thus, simple welding and long life are ensured. The ovolite tolerance of our Annealed Black water pipes is narrow. When the pipes are brought end to end, they provide a perfect overlap along all axes. No weld runoff and no weld gaps that need to be filled in extra. A fast, comfortable and reliable pre-welding preparation is made. This simplifies butt welding.

Chemical and Mechanical Properties

Chemical Composition (%)(1)

Standard Equivalent

ERDEMIR

C max.

Mn max.

Si max.

P max.

S max.

Cu max.

Standard

Quality

Quality No.

EN 10217-1

P235TR1

3285(1)(2)(4)

0,16

1,2

0,35

0.025

0.020

0,3

EN 10217-1

P235TR1

3337 (3)(4)

0,16

1,2

0.040

0.025

0.020

0,12

Descriptions

Cr + Cu + Mo + Ni sum max. It should be 0.70%.

  1. It is Cu alloyed.
  2. It is a low silicon steel suitable for galvanized coating.
  3. These quality products are produced as fully stagnant, so Al/N is at a minimum 2:1 ratio.
Mechanical Properties (2)

Standard Equivalent

ERDEMİR

Re N/mm(kg/mm2)

Rm(1)

A5 (%) min.

Qualtiy No

1.50<d<16 min.

16<d<40 min.

N/mm(kg/mm2)

Standard

Quality

EN 10217-1

P235TR1

3285

235 (24.0)

225 (23.0)

360-500 (36.7-50.9)

23

EN 10217-1

P235TR1

3337(3)

235 (24.0)

225 (23.0)

360-500 (36.7-50.9)

23

Descriptions

  1. The tensile test values are applied to the ‘transverse’ test specimens.
  2. Mechanical values are guaranteed on hot rolled tape.
  3. It is produced up to a maximum thickness of 25 mm.

Galvanizing Standards And Tolerances

Tolerances

  • Wall thickness: -12.5%
  • +%10(It changes according to the standards.)
  • Weight: ± 10% (In one length of pipe, it varies according to the standard.)
  • ± %7,5 (It varies according to the standard in a 10-ton lot.)
  • Size: ± 50mm (It varies according to the standard.)
  • Curvature: 1mm/m

Dimensional and Visual Controls

  • Leakage Tests / Non-Destructive Tests
  • Electro Magnetic Test (Eddy Current Test)
  • Ultrasonic Test (Welding Seam)
  • Residual Magnetic Field Measurement
  • Hydrostatic Test
  • Ultrasonic Test (Phased Array Body Lamination Test) (According to Demand)

Usage areas

  • In water transmission lines,
  • In the manufacture of white goods,
  • In water installations,
  • In heating installations,
  • In the construction industry,
  • In building fire installation systems,


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