Applications
Domestic and Industrial Natural Gas Installations, LPG Installations, Conduction of all kinds of Flammable and Explosive Gasses & Conduction of Petroleum and Petroleum Derivatives.
| Production Range | |
| External Diameter: | 21.3 mm - 323.9 mm |
| Wall Thickness: | 2 mm - 13 mm |
| Length: | 1/2" to 1 1/2" from 4 to 8.5 metres 2 " - 6" from 5 to 14 metres 6" - 12" from 5 to 14.6 metres |
| Production Standards | |
| API 5L PSL 1: : | A 25, Gr A, Gr B, X42, X46, X52, X56, X60, X65, X70 |
| API 5L PSL 2: | BM, X42M, X46M, X52M, X56M, X60M, X65M, X 70 M BN, X42N, X46N, X52N, X56N, X60N |
| API 5L PSL 2 (Sour Service): | BMS, X42MS, X46MS, X52MS, X56MS, X60MS, X65MS, X70MS, BNS, X42NS, X46NS, X52NS |
| API 5L PSL 2 (Offshore Service): | BMO, X42MO, X46MO, X52MO, X56MO, X60MO, X65MO, BNO, X42NO, X46NO, X52NO |
| EN 10208-1: | L 210 GA, L 235 GA, L 245 GA, L 290 GA, L 360 GA |
| EN 10208-2): | L210GA, L235GA, L245GA,L290GA, L360GA L245NB, L290NB, L360NB, L415NB L245MB, L290MB, L360MB, L415MB, L450MB |
High quality raw materials produced by continuous casting techniques are used. The Raw Material is homogeneous, compatible with the standard specifications and does not keep any lamination and inclusion. Corrosion resistance is high due to low phosphorus and sulphur concentration
Production Specification Level
PSL 1, PSL 2, PSL 2 (Sour Service), PSL 2 (Off Shore Service)
Finishing Operations
Square Cut and Bevelled End
Finishing with bevelled ends ensures the weld penetration and strength when joining the pipes. Special plugs are used to protect the bevelled pipe ends.
| Surface Protection | |
| Water Based Primer Coated: | (1/2'' - 12") (4 - 14.6m) |
| 3 Layer PE Coating | (1/2'' - 12") (6 - 14m) DIN 30670 |
| Epoxy Lining and Coating: | (2'' - 12’’) (4 – 14.6m) AWWA C210 |
| Epoxy internal Coating: |
(2"-12") (4m-14.6m) AWWA C222 |
Inside Bead (Tube)
Inside beads cause pressure losses within the tube during gas and liquid flow, beads are removed from our natural gas and line pipes using specialist equipment.
Weld Seam Heat Treatment
Weld Seam Annealing: 21.3 mm ≤ OD ≤ 339.7 mm
Stress relieving anneal is carried out on-line with high frequency induction system 538 - 950 °C. Hardness and crystal structure difference between main material and weld seam are removed by stress relieving anneal process during production. Mechanical strength values are improved and corrosion resistance is increased by weld seam annealing
Full Body Heat Treatment
Normalizing: 21.3 mm ≤ OD ≤ 323.9 mm
Stress Relieving Annealing: 21.3 mm ≤ OD ≤ 323.9 mm
Stress relieving and normalizing(bright annealing) are carried out offline with atmosphere controlled ''rolled hearth furnace'' between 550 - 700 °C (Stress relieving) and 880-950 °C (normalizing) on full pipe body. By means of full body annealing; micro structure and hardness differences between main material and weld seam are removed and products toughness, grain structure, bending and mechanical properties are improved. After the annealing, high surface quality and bright surface are obtained.
| Coating Quality Control | |
| Leak tightness Testing: | Hydrostatic Test |
| Non Destructive Testing: |
Eddy Current test |
| Destructive Testing: |
Flattening Test |
| Metallographic Examination: |
Macro Structure Examination |
| Chemical Analysis: | Spectral Analysis |
| Other: | HV and HRC Hardness Test |
| Other: | Hydrogen Inducted Cracking Test |
| Other: | Sulfide Stress Cracking Test |
| Other: | Visual and Dimensional Check |
Mill Test Certificates
According to EN 10204 2.1 , 2.2 , 3.1 , 3.2
Natural Gas and Line Pipes Range, Click Below