Seamless carbon steel pipe according to API 5L Grade X 52 / 65 PSL-2 / N/Q. 100 % US-Tested with 5 % defect notch. Tolerances as per API 5L. Double random lengths 8-12 meter. Certificates to EN 10204 3.2 (Lloyds)

CHEMICAL COMPOSITION

We give you below the heat and Product analysis in max. Values in weight %.

  C Mn Si S P Cu Ni Cr Mo V Nb Ti Sn B N Al total
X52 0,15
  0,16 1,60 0,50 0,007 0,025 0,30 0,30 0,25 0,08 0,06 0,04 0,02 0,02 0,0005 0,014 0,06
X65 0,10
  0,16 1,65 0,45 0,010 0,025 0,30 0,50 0,30 0,25 0,10 0,05 0,04 0,02 – – 0,06

The min. content of Mn is 1.10% and the average 1,20 to 1,35%.

V + Nb max: 0,10%

V+ Nb + Ti ≤ 0,12%

Materials With V+Nb+0,06% and V+Nb+Ti≤0,07% can be supplied from the mills on request at higher cost particularly for bigger wall thicknesses.  A lot of material in stock meet these requirements.

 

X65Q Other elements

Deliberate addition of any other elements is not permitted. As 0,02% max. -Sb, Pb, Bi 0,010% max. B0,0005% max. C is added for desulphurisation purpose and is Limited to 0,005% max.

CE = C+MN/6 + (Cr+Mo+V)/5 + (Cu+Ni)/15 ≤ 0,43 (Heat & Product)

Pcm = C + Si/30 + (Mn+Cu+Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B ≤ 0,25 (Heat & Product)

A lot of the material in stock meet < 0,22

 

MECHANICAL PROPERTIES – at room temperature

Below you will find the values for the mechanical Properties for Our modified quality:

 

.                                                         X52                                                            X65

Yield strength (Rp0.2)         360-620 N/mm²                                    450-600N/mm²

Tensile strenght (Rm)          490-620 N/mm²                                    535-760 N/mm²

Elongation (2″)                      acc. to API, however 22% min.           19%

Yield / tensile ratio               max. 0,87                                               0,93%

Hardness                                237 HB max. (22HRC max) according to NACE MR-01-75

Testing position                    acc. to API – longitudinal ≤ 168.3, transverse ≤ 219.1mm O.D.