Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 88.9×5.49 x56 psl1 in China. Welcome to buy discount api spec 5l 88.9×5.49 x56 psl1 made in China here from our factory. Quality products and low price are available.
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Product introduction
API Spec 5L 88.9×5.49 X56 PSL1 Line Pipe
Product Description
API Spec 5L 88.9×5.49 X56 PSL1 line pipe is manufactured in full compliance with API Spec 5L international standard, designed for onshore oil, natural gas and industrial fluid transmission. Available in ERW welded and seamless types, this pipe features outer diameter 88.9mm, wall thickness 5.49mm and X56 PSL1 steel grade. With high yield strength, stable mechanical properties, excellent pressure resistance and good weldability, it is a cost-effective solution for conventional medium-pressure pipeline projects worldwide.
Basic Product Specifications
Product Name: API 5L Carbon Steel Line Pipe
Executive Standard: API Spec 5L
Steel Grade: X56
Quality Level: PSL1
Outer Diameter (OD): 88.9 mm
Wall Thickness (WT): 5.49 mm
Inner Diameter (ID): 77.92 mm
Production Process: High-frequency ERW / Seamless
Standard Length: 6m / 12m, custom cutting available
Surface Finish: Black steel surface with temporary anti-rust oil
Pipe End: Plain end, beveled end optional
Application: Oil, gas, water and industrial medium transportation
Grade & PSL Introduction
X56: Minimum yield strength 56 ksi (386MPa), higher structural strength and pressure bearing capacity than X52.
PSL1: Conventional product specification level, applicable to common onshore pipeline systems, with reasonable inspection standards and high cost performance.
Dimensional Tolerance
| Item | Nominal Size | Standard Tolerance |
|---|---|---|
| Outer Diameter | 88.9 mm | ±0.75% |
| Wall Thickness | 5.49 mm | -12.5% |
| Out-of-Roundness | - | ≤1.5% of OD |
| Straightness | - | ≤3.2 mm/m |
| Length | 6m / 12m | +500mm / -0mm |
Mechanical Properties
| Performance Index | Standard Requirement |
|---|---|
| Minimum Yield Strength | ≥386 MPa (56 ksi) |
| Tensile Strength | 485–690 MPa |
| Elongation | ≥21.5% |
| Flattening Test | No cracks and defects |
| Hydrostatic Test | No leakage, qualified |
Chemical Composition (Max. %)
| Element | C | Mn | P | S | Si |
|---|---|---|---|---|---|
| Content | ≤0.28 | ≤1.40 | ≤0.035 | ≤0.040 | ≤0.45 |
Manufacturing Process
Adopt high-quality carbon steel raw materials that meet API 5L standards. The production flow includes cold forming, high-frequency resistance welding, precision sizing, straightening and finishing. All welded seams are 100% ultrasonic non-destructive tested. Each pipe undergoes strict hydrostatic pressure test and dimensional inspection, ensuring stable structure, uniform wall thickness and no internal defects.
Product Advantages
Strictly comply with API Spec 5L standard, widely recognized in global energy industry
X56 high-strength grade, suitable for medium-pressure conveying conditions
Precise dimension control, easy cutting, welding and on-site installation
Excellent weldability and toughness, adapting to various construction environments
PSL1 cost-effective configuration, reducing overall project investment
Complete quality documents and heat number traceability
Main Applications
Onshore natural gas transmission and distribution pipeline
Crude oil and refined oil conveying pipeline system
Industrial circulating water and chemical medium delivery
Municipal energy pipeline and supporting facilities
Pipeline support and general mechanical structural engineering
Quality Inspection & Certification
Full inspection including dimension detection, tensile test, chemical composition analysis, weld NDT and hydrostatic test. Each batch is equipped with official Mill Test Certificate, realizing full quality traceability and meeting international project acceptance standards.
Packaging & Delivery
Bundled with steel strips and wrapped with waterproof cloth to prevent rust and damage. Each pipe is marked with standard, grade, size, heat number and batch number. Support FOB, CIF, CFR, DAP trade terms. Shipped from Tianjin, Qingdao, Shanghai and other major ports with stable supply and fast delivery.
Contact Us
Welcome to contact us for the quotation, stock and customized service of API Spec 5L 88.9×5.49 X56 PSL1 line pipe. We provide high-quality API pipeline products and professional one-stop 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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