Cangzhou Spiral Steel Pipes Group Co.ltd
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api 5l x60 pipe carbon steel spiral welded
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| Categories | API 5L Spiral Welded Line Pipe – SSAW for Oil & Gas Transmission |
| Brand | Cangzhou Spiral Steel Pipe Manufacturers |
| Model | api 5l x60 pipe-1 |
| TRADE TERM | FOB CFR CIF |
| Special Pipe | API Pipe |
| Section Shape | Round |
| Name | API 5L SSAW Line Pipe |
| Standard | API Spec 5L（PSL1 / PSL2） |
| Technique | SSAW |
| Product name | Spiral Steel Circular Hollow Section |
| Oiled or Non-oiled | Non-oiled |
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
| Length | 12M, 6m, 6.4M,Up to 30 meters in length |
| Certificate | API 5L, CE, JIS, ISO9001,BV,etc. |
| Ends | 1.Plain End2. Beveled3.Threaded.4 Screwed |
| Material | Carbon Steel Grade X60 |
| FOB port | Tianjin port |
| Terms of Payment | L/C, T/T |
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Detail Information
API 5L X60 PSL1/PSL2 Spiral Seam Double sided Submerged Arc Welded Steel Pipe (SSAW)
API 5L X60 (L415) spiral seam double-sided submerged arc welded steel pipe, designed specifically for long-distance oil and gas pipelines and high-pressure fluid transportation. X60 steel grade has a core index of yield strength of 415-565 MPa, while PSL2 grade has stricter requirements for chemical composition, impact toughness, and non-destructive testing, making it suitable for long-distance pipeline engineering with high pressure and high safety levels.
Execution Standards And Steel Grade Positioning
| Item | Content |
| Standard | API Spec 5L (46th edition) |
| Steel Grade | X60 / L415 |
| Product specification level | PSL1 (conventional transportation), PSL2 (high voltage/critical service, recommended) |
Tube type | Spiral seam double-sided submerged arc welded pipe (SSAW/HSAW) |
X60 belongs to medium to high strength pipeline steel in the API 5L steel grade sequence, between X52 and X65. In the scenario of high-pressure natural gas long-distance pipelines, PSL2 grade X60 is the industry's preferred choice because it achieves a good balance between strength, toughness, and weldability.
X60 Mechanical Properties
| Performance Metrics | Numerical Value | Standard Basis |
| Yield strength (YS) | 415–565 MPa | API 5L PSL2 |
| Tensile strength (TS) | 520–760 MPa | API 5L PSL2 |
| Yield ratio (YS/TS) | ≤ 0.93 | PSL2 mandatory requirement |
Elongation | Determine by pipe diameter and wall thickness | API 5L formula calculation |
Explanation: SSAB data shows that the minimum yield strength of X60 is 60.2 ksi (approximately 415 MPa). Some supplier pages indicate that the lower yield limit of X60 is 414 MPa, which is consistent with 415 MPa.
X60 Chemical Composition (Psl2/X60m Thermal Analysis, Maximum Value Wt%)
| Element | Upper Limit |
| C | 0.12% |
| Mn | 1.60% |
| P | 0.025% |
S | 0.015% |
Si | 0.45% |
Cu | 0.50% |
Ni | 0.30% |
Mo | 0.15% |
CE(IIW) | ≤ 0.43% |
Pcm | ≤ 0.25% |
Data source: SSAB API 5L Grade X60 technical data.
PSL2 has mandatory requirements for carbon equivalent (CE), which is a key indicator to ensure welding performance and on-site welding quality. For acidic service (SSC/HIC) scenarios, it is necessary to separately confirm the sulfur content and inclusion control level.
Size Specification Range
| Parameter | Standard Range | Cangzhou Spiral Steel Pipe Group's Capability |
| Outer Diameter | 219.1-2032 mm (common in the industry) | Φ219 – Φ3620 mm |
| Wall Thickness | 6.0-25.4 mm (common) | 6-25.4 mm (expandable) |
| Single Tube Length | 6-18 meters (common in the industry) | Max 30 meters (leading in Asia) |
Pipe End | Flat end/groove | On demand processing |
In the common X60 SSAW specifications in the industry, the upper limit of the outer diameter is mostly concentrated around 2032mm, and the length of the single tube is generally 12-18m. Cangzhou Spiral Steel Pipe Group's 3620mm caliber and 30m ultra long pipe manufacturing capabilities have formed significant differentiation advantages in large-diameter long-distance pipeline projects - ultra long pipes can greatly reduce the number of on-site circumferential welds, reduce leakage risks, and accelerate construction progress.
Typical Specifications And Theoretical Weight Reference
| NPS | Outer Diameter (Mm) | Common Wall Thickness Range (Mm) | Theoretical Weight Example (Kg/M) |
| 8" | 219.1 | 6.0 – 12.7 | 31.5 – 64.6 |
| 12" | 323.9 | 6.35 – 17.48 | 49.7 – 132.1 |
| 16" | 406.4 | 7.92 – 21.44 | 77.8 – 203.5 |
20" | 508.0 | 9.53 – 26.19 | 117.2 – 311.1 |
24" | 610.0 | 9.53 – 30.96 | 141.1 – 442.1 |
30" | 762.0 | 7.92 – 31.75 | 176.9 – 571.8 |
36" | 914.0 | 9.53 – 31.75 | 212.6 – 690.8 |
48" | 1219.0 | 12.7 – 31.75 | 377.8 – 929.5 |
Data source: GNEE steel pipe X60 PSL2 SSAW specification table.
Hydrostatic Pressure Test Requirements (Mandatory Api 5l)
API 5L stipulates that each steel pipe must undergo hydrostatic pressure testing one by one, and batch sampling is not allowed.
Calculation formula for test pressure:
P=2×S×t/D
Among them: S=60% × SMYS (the SMYS of X60 is 415 MPa, so S=249 MPa)
X60 Calculation Example (36 "OD x 12.7mm WT):
P=2 × 249 × 12.7/914=approximately 6.92 MPa
Pressure holding time requirement:
OD<508mm: ≥ 5 seconds
OD ≥ 508mm: ≥ 10 seconds
The accuracy requirement for pressure gauges is ± 0.5% FS, and test records must be kept for at least 7 years and traceable to the furnace batch number of each tube.
Manufacturing Process And Quality Control
| Link | Key Points |
| Forming | Multi roll spiral forming of steel strip, with weld seam gap control of 1-3mm |
| Welding | Double sided submerged arc welding (DSAW) inside and outside to ensure deep penetration |
| Pipe End | Flat end/groove, according to project requirements |
Detection | 100% hydrostatic pressure, non-destructive testing (UT/RT), mechanical properties, chemical composition |
Cangzhou Group Quality Assurance - CNAS accredited laboratory:
The factory has its own CNAS accredited laboratory with complete testing capabilities from raw materials to finished products. This means that the chemical composition analysis, tensile/impact testing, and carbon equivalent verification required for X60 PSL2 can all be completed in the factory, and the data has recognized qualifications, shortening the testing release cycle and meeting the requirements of international projects for third-party reports. 13 production lines ensure stable supply for major projects.
Application Areas
Typical applications of API 5L X60 spiral welded pipe:
| Field | Scene |
| Oil And Gas | High pressure long-distance pipelines, gathering pipelines, and non acidic service pipelines |
| Water Conservancy | Large caliber water pipelines and water diversion projects |
| Municipal | Heating pipeline network, gas pipeline network |
Structure | Pile foundation pipe, marine engineering support pipe |
Why choose Cangzhou Spiral Steel Pipe Group
Caliber coverage of 219-3620mm: covering all scenario requirements from small and medium-sized calibers to ultra large calibers, the 3620mm level is at the leading level in the industry
Single tube up to 30 meters long: Asia's leading ultra long tube manufacturing capability significantly reduces the number of on-site welding, lowers leakage risks, and improves construction efficiency
CNAS Laboratory: Factory accredited qualification testing, X60 PSL2 full testing completed locally, reliable data, fast delivery
Capacity guarantee: 13 spiral steel pipe production lines, qualified as a large-scale second tier enterprise, with the ability to continuously supply large projects
Anti corrosion integration: With its own anti-corrosion workshop, it can be equipped with 3PE/FBE coatings and other coatings, making the quality control of the interface between the pipe body and the coating more reliable
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