Steel Grade: X52
Out Diameter: 219-1422 mm ( 8"-56"), tolerance: ±1%
Wall Thickness: 9.53-140mm
Length: 6-11.8Meter
Welded Steel Pipe
Surface: bare, black varnish or light oiled
Pipe End: Plain or Beveled (Can be Protected By Plastic Pipe Cap)
NDE: UT, ET or Hydraulic testing
Straightness: WT＜30mm, not more than 2mm per meter
WT≥30mm, not more than 3mm per meter
Others: According API 5L standard
We are one of the best steel pipe manufacturers in China, and the production diameter from 8" to 48" in OD and wall thickness from 9.53 mm up to 140mm. We can produce the line steel pipe and off shore steel pipe according to the API 5L standard. In recently 10 years, we have been exported about 100000 tons GR.B, X42, X52, X65, X70 and X80 steel pipe to India, Japan, Korea, South East Asia, Middle East, North America and Europe.
We have been granted a number of approval certificate by international institutions, such as Nuclear pipe certificate, 914mm Cylinder certificate, API monogram and certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC, approvals from Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL, Bureau Veritas, and permit of exporting to Europe as PED 2014/68/EU and AD 2000 certificates for pressure pipes, CPD (Construction Products Directive), etc.
Our products can meet the standard requirements as follows:
| Steel grade | Mass Fraction,Based on Heat and Product Analyses % max | Carbon Equivalent |
| C | Si | Mn | P | S | V | Nb | Ti | other | CEⅡW | Cepcm |
| L245R or BR | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | c | c | 0.04 | e,l | 0.43 | 0.25 |
| L290R or X42R | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | 0.06 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L245N or BN | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | c | c | 0.04 | e,l | 0.43 | 0.25 |
| L290N or X42N | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | 0.06 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L320N or X46N | 0.24 | 0.4 | 1.4 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| L360N or X52N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| L390N or X56N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| L415N or X60N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | g,h,l | As agreed |
| L245Q or BQ | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L290Q or X42Q | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L320Q or X46Q | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L360Q or X52Q | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| L390Q or X56Q | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| L415Q or X60Q | 0.18 | 0.45 | 1.7 | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| L450Q or X65Q | 0.18 | 0.45 | 1.7 | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| L485Q or X70Q | 0.18 | 0.45 | 1.8 | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| L555Q or X80Q | 0.18 | 0.45 | 1.9 | 0.025 | 0.015 | g | g | g | I,j | As agreed |
Patented Piercing-Rolling-Reeling process and other assistive facilities (such as continuous heating furnace, hot expansion mill, 850 sizing mill, reeling mill, five racks sizing mill, etc.) formed a continuous product line. Reasonable product line saved energy and improved material yield to ensure a lower production cost and short production cycle. Raw material is supplied by top steel mill in China, such as XINGCHENG Steel, BAO Steel and so on. Local billet availability provide the economic material cost and quick delivery.
Looking for ideal X52 Line Pipe Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the X52 Steel Pipe are quality guaranteed. We are China Origin Factory of API 5L X52 Pipe. If you have any question, please feel free to contact us.
Contact Now
