Name: China API Spec 5L 323.9×7.62 X42M PSL2 Manufacturers Suppliers Factory - Huayang Steel Pipe
Brand: Huayang
SKU: 299933913

Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api spec 5l 323.9×7.62 x42m psl2 in China. Welcome to buy discount api spec 5l 323.9×7.62 x42m psl2 made in China here from our factory. Quality products and low price are available.

Product introduction

API Spec 5L 323.9×7.62 X42M PSL2 Line Pipe Product Details

Product Overview

API Spec 5L 323.9×7.62 X42M PSL2 Line Pipe is a high-reliability, medium-strength line pipe manufactured in strict compliance with API Spec 5L (46th Edition) and ISO 3183 standards. With an outer diameter (OD) of 323.9mm (12.75-inch), wall thickness (WT) of 7.62mm, steel grade X42M (L290M), and product specification level PSL2, this pipe is engineered for medium-pressure oil and gas transmission. It features excellent weldability, superior low-temperature toughness, and strict quality control, making it a reliable choice for onshore and offshore gathering and transmission pipeline projects.

Basic Specifications

Item	Details
Standard	API Spec 5L (46th Edition), ISO 3183
Size	323.9 mm (OD) × 7.62 mm (WT)
Steel Grade	X42M (L290M, API 5L X42M)
Specification Level	PSL2 (Product Specification Level 2)
Manufacturing Process	Electric Resistance Welded (ERW) / Longitudinal Submerged Arc Welded (LSAW) / Seamless (SMLS) (optional)
Length	Single Random Length (SRL): 5.8m-7.2m; Double Random Length (DRL): 11.8m-12.2m; Custom Lengths (available on request)
End Finish	Beveled End (BE) for welding (standard); Plain End (PE) (optional)
Surface Treatment	Standard: Anti-rust oil, black varnish, or black paint; Optional: Fusion Bonded Epoxy (FBE) coating, 3-Layer Polyethylene (3PE) coating (for corrosion protection in harsh environments)
Delivery Condition	Thermo-Mechanical Controlled Process (TMCP) (ensures uniform structure and stable mechanical properties)

Chemical Composition (X42M PSL2, Heat Analysis, Max %)

Element	C	Mn	P	S	Si	Cu	Ni	Cr
Limit	≤0.20	≤1.30	≤0.025	≤0.015	≤0.45	≤0.30	≤0.30	≤0.30

• Carbon Equivalent (CEV) ≤ 0.40 (PSL2 mandatory requirement for improved weldability and low-temperature toughness)

• Strict control of residual elements to ensure stable performance in various service environments

Mechanical Properties (X42M PSL2)

Mechanical Property	Minimum/Range Value
Yield Strength (Rp0.2)	≥ 290 MPa (42,000 psi)
Tensile Strength (Rm)	414 – 586 MPa (60,000 – 85,000 psi)
Elongation (A5)	≥ 21%
Charpy V-Notch Impact Test (Mandatory for PSL2)	≥ 40 J at -20℃ (or as per customer requirements)
Hardness (HB)	≤ 248 HB

Dimensional Tolerances (Per API Spec 5L PSL2)

Outer Diameter (OD): 323.9mm ± 0.50mm (strict dimensional control for pipeline assembly and fitting)

Wall Thickness (WT): 7.62mm +12.5% / -10% (ensures consistent pressure-bearing capacity)

Straightness: ≤ 1.5mm per 1m length (reduces installation difficulty and ensures pipeline alignment)

Ovality: ≤ 0.8% of OD (meets PSL2 precision requirements for welding and structural stability)

Key Features & Advantages

Superior Reliability: PSL2 specification level ensures stricter inspection and testing than PSL1, guaranteeing consistent quality and performance.

Excellent Weldability: Optimized chemical composition and CEV control enable easy field and shop welding, reducing construction time and cost.

Good Low-Temperature Toughness: Mandatory Charpy impact test at -20℃ ensures the pipe can withstand extreme temperature changes without cracking.

Cost-Effective Performance: X42M grade provides ideal medium-strength performance for medium-pressure pipelines, balancing quality and cost.

Versatile Application: Suitable for various onshore and offshore oil, gas, and fluid transmission scenarios, with optional corrosion-resistant coatings.

Full Traceability: Each pipe is traceable from raw material to finished product, with complete test reports and certificates.

Typical Applications

Onshore and offshore oil & natural gas gathering pipelines

Medium-pressure oil and gas transmission pipelines

Industrial fluid transportation (e.g., slurry, chemicals)

Oilfield and gas field pipeline projects requiring PSL2 quality

Municipal and industrial medium-pressure water supply pipelines

Inspection & Testing (PSL2 Mandatory Requirements)

Chemical Analysis: Spectrometer test for heat analysis and product analysis to verify compliance with X42M composition requirements.

Mechanical Tests: Tensile test, flattening test, flaring test, and bending test to confirm mechanical properties meet API 5L standards.

Impact Test: Charpy V-notch impact test at -20℃ (mandatory for PSL2) to ensure low-temperature toughness.

Non-Destructive Testing (NDT):

Hydrostatic Pressure Test: 1.5 times the nominal pressure, held for a specified time to ensure leak-proof performance.

Ultrasonic Test (UT): For weld and seamless pipe inspection to detect internal defects.

Eddy Current Test (ET): For surface defect inspection of welded pipes.

Dimensional & Visual Inspection: Verification of OD, WT, length, end preparation, and surface quality to meet PSL2 tolerances.

Packaging & Marking

Packaging

• Steel frame bundling with anti-slip and anti-collision protection to prevent damage during transportation.

• Plastic caps or steel caps at both ends to prevent dust, moisture, and debris from entering the pipe.

• Seaworthy export packaging, suitable for long-distance ocean transportation and international shipping.

Marking (Per API 5L Requirements)

Each pipe is stenciled or stamped with legible, durable markings including:

Standard: API Spec 5L

Grade: X42M

Size: 323.9×7.62mm

PSL Level: PSL2

Heat Number & Batch Number

Length & Manufacturing Process

Manufacturer Name & Logo

MTC Reference Number

Quality Assurance

Manufactured under ISO 9001 Quality Management System to ensure consistent quality control.

Full Material Test Certificate (MTC) per EN 10204 3.1 or 3.2 provided for each batch of pipes.

Full compliance with API Spec 5L PSL2 requirements, with third-party inspection (e.g., SGS, BV, DNV) available upon request.

Strict quality control from raw material procurement, production process to finished product delivery.

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.