Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 406.4×10.31 x52 psl1 in China. Welcome to buy discount api spec 5l 406.4×10.31 x52 psl1 made in China here from our factory. Quality products and low price are available.
Product introduction
API Spec 5L 406.4×10.31 X52 PSL1 Line Pipe
Product Overview
API Spec 5L 406.4×10.31 X52 PSL1 Line Pipe is a medium-strength steel line pipe produced in strict accordance with API Spec 5L standards. It features an outer diameter of 406.4mm, wall thickness of 10.31mm, grade X52 (L360), and specification level PSL1. This pipe offers stable mechanical properties, good weldability and cost efficiency, widely used in general oil, gas and fluid transmission pipelines.
Basic Specifications
| Item | Details |
|---|---|
| Standard | API Spec 5L (46th Edition), ISO 3183 |
| Size | 406.4 mm (OD) × 10.31 mm (WT) |
| Steel Grade | X52 (L360) |
| Specification Level | PSL1 |
| Production Process | ERW / LSAW / Seamless |
| Length | SRL 5.8–7.2m, DRL 11.8–12.2m |
| End Finish | Beveled End (BE), Plain End (PE) |
| Surface Treatment | Anti-rust oil, black paint; optional FBE/3PE coating |
Chemical Composition (PSL1, Max %)
C: ≤0.28
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Si: ≤0.45
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | ≥ 360 MPa |
| Tensile Strength | 450 – 585 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 241 HB |
| Delivery Condition | Hot rolled / Normalized / TMCP |
Dimensional Tolerances
Outer Diameter: ±0.75 mm
Wall Thickness: +12.5% / −10%
Straightness: ≤ 3 mm/m
Ovality in line with API 5L PSL1
Key Advantages
Reliable strength for medium-pressure pipeline systems
Good weldability for convenient on-site construction
PSL1 standard ensures stable quality with economic cost
Good ductility and pressure resistance
Full compliance with international pipeline standards
Applications
Onshore oil and natural gas gathering and transmission pipelines
Water supply and municipal fluid transportation
General industrial medium-pressure fluid pipelines
Utility and infrastructure pipeline projects
Inspection & Test
Chemical composition analysis
Tensile, flattening and flaring tests
Hydrostatic pressure test
Ultrasonic or eddy current non-destructive testing
Dimensional and visual inspection
Packaging & Marking
Bundled with steel strips, plastic end caps
Seaworthy export packing
Markings: standard, grade, size, PSL1, heat number, length, manufacturer logo
Quality Assurance
ISO 9001 quality management system
Complete Material Test Certificate (MTC) provided
Full compliance with API Spec 5L PSL1 requirements
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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