Heavy Wall L450/X65 L485/X70 LSAW & Seamless Steel Line Pipe High Pressure Resistance for Sour Service & Offshore Subsea Pipeline

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Product Description

📋Basic Info.
Model NO.
L245 / Gr. B, L290 / X42, L320 / X46, L360 / X52
Type
Seamless/Welded
Technique
Hot/Cold Rolled, Cold Draw, ERW, Saw, Efw, Extrude
Material
Carbon, Stainless, Alloy
Surface Treatment
Black/Varnishing/Polished/Oiled/Galvanized
Section Shape
Round
Payment
T/T L/C
Price Terms
EXW/Fob/CIF/CFR
Production Capacity
200, 000 Ton/Year
⚙️Product Description
Seamless Steel Line Pipe

We supply high-quality seamless steel tubes specifically engineered for oil and gas downhole applications, including casing and tubing. Our products are manufactured to meet stringent international standards, ensuring superior performance in demanding environments. Key grades include J55, K55, N80 (including N80Q), L80, C90, T95, P110, and Q125.

These tubes are available in various configurations such as EUE (External Upset End) and NUE (Non-Upset End) threading, including Buttress Thread profiles for enhanced connection integrity. Ideal for standard, high-pressure, deep well, and sour service conditions.

Standard: GB/T9711 - Conforming to the esteemed China National Standard.
Uses: Designed for the transportation of oxygen, water, and oil in the oil and gas industry.
Main Grades: L245 / Gr.B, L290 / X42, L320 / X46, L360 / X52, L390 / X56, L415 / X60, L450 / X65, and L485 / X70.
Pipe Types Outer Diameter (mm) Diameter Deviation Wall Thickness (mm) Thickness Deviation
Steel Pipes ≥60.3, S < 20 ±0.75% ≤73.0 +15%, -12.5%
Steel Pipes ≥60.3, S ≥ 20 ±1.00% >73.0, S < 20 +15%, -12.5%
🖼️Detailed Photos
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📜Certifications
Certifications
📦Packaging & Shipping

1. Secure Export Packaging: Sea-worthy methods combined with water-proof paper for maximum protection.

2. Professional Loading: Skilled teams handle safe loading and secure fixing to guarantee product integrity.

3. Delivery: Swift delivery within 7-10 working days after deposit or based on order quantity.

Packaging
🚀Our Advantages
Service: 12-hour prompt response to all inquiries.
Certified: ISO 9001, CE, and SGS compliant.
Capacity: 20,000 tons monthly output.
Direct: Factory-direct pricing with quality assurance.
Testing: Support for third-party testing (SGS, BV).
Advantage Overview
FAQ
What are your primary steel product offerings?
We specialize in Stainless and Carbon Steel sheets, plates, coils, and pipes (both seamless and welded), as well as various structural profiles like round, square, and H/I-beams.
How do you ensure product quality?
We provide Mill Test Certificates with all shipments, maintain ISO-certified processes, and support optional third-party inspections from organizations like SGS or BV.
What is the typical delivery timeline?
Stock items are ready within 3 business days. Made-to-order items typically require 7-15 working days following deposit confirmation.
Do you provide product samples?
Yes, we offer complimentary small samples from our existing inventory. Customers are only responsible for the associated shipping costs.
What are your standard payment terms?
Our standard terms are a 30% advance payment via T/T to initiate the order, with the remaining 70% balance due prior to shipment.
Can you handle customized fabrication requests?
Absolutely. We are dedicated to fulfilling unique specifications and offer tailored solutions to meet specific project requirements for all our steel products.

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