Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 88.9×5.49 x56m psl2 in China. Welcome to buy discount api spec 5l 88.9×5.49 x56m psl2 made in China here from our factory. Quality products and low price are available.
Product introduction
API Spec 5L 88.9×5.49 X56M PSL2 Line Pipe
Product Description
API Spec 5L 88.9×5.49 X56M PSL2 line pipe is a high-grade thermo-mechanical controlled rolled pipeline steel pipe, manufactured in accordance with API Spec 5L latest edition and ISO 3183 international standards. With outer diameter 88.9 mm, wall thickness 5.49 mm, steel grade X56M and high standard PSL2 level, this product adopts TMCP thermo-mechanical rolling technology. It features fine grain structure, high strength, excellent low temperature toughness, stricter chemical control and perfect weldability. Suitable for medium and high pressure oil and gas transmission, cold region projects and critical pipeline systems, it is the preferred high-performance pipeline solution for global high-standard engineering.
Basic Product Specifications
Product Name: API 5L High Strength Line Pipe
Executive Standard: API Spec 5L / ISO 3183
Steel Grade: X56M(L390M)
Specification Level: PSL2
Outer Diameter (OD): 88.9 mm
Wall Thickness (WT): 5.49 mm
Inner Diameter (ID): 77.92 mm
Manufacturing Process: ERW / LSAW / Seamless, TMCP Thermo-Mechanical Controlled Rolling
Delivery Condition: Thermo-mechanically rolled
Standard Length: 6m / 12m, custom fixed length available
Surface Finish: Black bare steel, temporary anti-rust oil coating
Pipe End: Plain end / Beveled end for field welding
Grade Marking Explanation
X56: Minimum yield strength 56 ksi, equivalent to 390 MPa
M: Thermo-mechanical controlled rolling (TMCP), improve toughness and weldability
PSL2: Enhanced quality level, strict chemical composition, mandatory impact test, full NDT inspection, for harsh and critical working conditions
Dimensional Tolerance (API Spec 5L PSL2)
| Item | Nominal Size | Standard Tolerance |
|---|---|---|
| Outer Diameter | 88.9 mm | ±0.75% |
| Wall Thickness | 5.49 mm | -12.5% ~ +15% |
| Out-of-Roundness | - | ≤1.5% of outer diameter |
| Straightness | - | ≤3.2 mm per meter |
| Total Length | 6m / 12m | +500mm / -0mm |
Mechanical Properties (PSL2)
| Performance Item | Standard Value |
|---|---|
| Minimum Yield Strength | 390 MPa ~ 545 MPa |
| Tensile Strength | 490 MPa ~ 760 MPa |
| Yield to Tensile Ratio | ≤0.93 |
| Elongation | ≥21.5% |
| Charpy Impact Energy | ≥27 J at 0℃ |
| Hardness Requirement | Controlled within standard range |
| Hydrostatic Test | 100% pressure test, no leakage |
Chemical Composition (Max. %, PSL2)
| Element | C | Mn | P | S | Si | Nb+V+Ti |
|---|---|---|---|---|---|---|
| Content | ≤0.22 | ≤1.60 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.15 |
Low phosphorus and low sulfur design, effectively reduce cold cracking and corrosion risk, more suitable for long-term complex service environment.
Manufacturing Process
Select low-carbon micro-alloyed raw materials meeting API 5L PSL2 requirements. Through precision cold forming, high-frequency welding or seamless piercing, combined with TMCP thermo-mechanical controlled rolling process, to realize fine grain strengthening. After welding seam heat treatment, sizing, straightening, 100% ultrasonic nondestructive testing, hydrostatic pressure test and strict dimensional inspection, the product has stable structure and excellent comprehensive performance.
Product Advantages
Meet API 5L PSL2 high standard, widely recognized by international oil and gas owners
X56M TMCP process, higher toughness, better low temperature resistance and weldability
Strict PSL2 chemical and mechanical control, high safety and long service life
Uniform wall thickness, high dimensional accuracy, convenient for on-site construction and docking
Strong pressure bearing capacity, suitable for medium and high pressure transmission conditions
Complete test reports, heat number traceability and official MTR provided
Main Applications
Onshore and offshore medium-high pressure natural gas and crude oil transmission trunk lines
Cold region, high altitude and low temperature environment pipeline projects
Oil & gas gathering stations, petrochemical industrial pipeline networks
Slightly corrosive medium and complex working condition conveying system
Key municipal energy pipelines and national key engineering supporting pipelines
Quality Inspection & Certification
Full-process quality control including dimensional inspection, tensile test, Charpy impact test, chemical spectral analysis, weld ultrasonic NDT and hydraulic test. All products comply with API 5L PSL2 technical requirements, and complete mill test certificates and inspection documents are provided to support project acceptance and customs clearance.
Packaging & Delivery
Adopt high-strength steel strip bundling, matched with waterproof and moisture-proof woven cloth packaging. Each steel pipe is permanently marked with standard, grade, specification, heat number and batch number. Support FOB,CIF,CFR,DAP and other international trade terms. Goods are delivered from Tianjin, Qingdao and other core ports, with sufficient inventory and stable delivery cycle.
Contact Us
For detailed quotation, stock inquiry, delivery cycle and customized anti-corrosion treatment of API Spec 5L 88.9×5.49 X56M PSL2 line pipe, please contact our sales team. We provide high-standard API series pipeline products and professional overall pipeline solutions for global customers.
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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