ERW炭素鋼溶接管 | 黒色鋼管 21.3–323.8mm ASTM A53/GB

製品概要

ERW carbon steel pipe, also known as straight seam welded pipe, is manufactured by cold-forming steel strip or steel plate into a cylindrical shape and then welding the seam. The weld seam runs parallel to the longitudinal direction of the pipe. This production process is simple, highly efficient, 費用対効果が高い, making ERW steel pipe one of the most widely used pipe products in the global market.

Our ERW carbon steel pipes are available in a wide range of sizes: outer diameter from 21.3mm to 323.8mm, wall thickness from 1mm to 22mm, and length from 1.0m to 12.0m or customized. The pipes are manufactured in compliance with international standards including ASTM A53, ASTM A500, API 5L, API 5CT, GB9711.1, and DIN/BS/JIS/AISI/EN.

With a hot-rolled surface finish, tight dimensional tolerance of ±1%, and non-oiled treatment, these pipes offer excellent weldability, structural strength, and corrosion resistance. They are widely used in fluid transportation, structural support, boiler pipes, drill pipes, hydraulic systems, gas pipelines, oil pipelines, and construction projects.

ERW炭素鋼溶接管

技術仕様

ERW炭素鋼溶接管

主な特長

• No Porosity, No Cracks – Strict quality control ensures defect-free pipe surface and internal structure.
• 耐食性 & Rust Prevention – Superior anti-corrosion properties extend service life in demanding environments.
• High Surface Gloss – Smooth, clean surface finish enhances both appearance and performance.
• International Standard Materials – Manufactured with certified materials meeting ASTM, API, GB, and other global standards.
• Wide Size Range – Outer diameter from 21.3mm to 323.8mm, wall thickness from 1mm to 22mm, covering diverse application needs.
• Strict Inspection – Comprehensive chemical composition analysis, mechanical property testing, dimensional and appearance inspection, plus non-destructive testing.

アプリケーション

ERW carbon steel pipes are widely used across multiple industries and sectors:

• Water Conservancy Engineering – Water conveyance pipelines, irrigation systems, and drainage networks
• Petrochemical Industry – Oil and gas transmission pipelines, refinery piping systems
• 化学工業 – Chemical fluid transportation, process piping
• Power Industry – Boiler pipes, steam pipelines, power plant piping systems
• Agricultural Irrigation – Farmland irrigation networks, 給水システム
• Urban Construction – Building structures, scaffolding, municipal pipelines, 防火システム
• Structural Applications – Steel structures, bridge supports, foundation piling
• 油圧システム – Hydraulic fluid transmission pipelines

ERW炭素鋼溶接管

Packaging & Shipping:

• Standard Packaging: For outer diameter up to 219mm, pipes are bundled in hexagonal marine-grade bundles, secured with steel strips, each bundle equipped with two nylon lifting slings.
• バルク供給: For outer diameter larger than 219mm, bulk supply is available or according to customer customization requirements.
• Stock Availability: Ample inventory with ready stock for immediate shipment.
• Pre-shipment Inspection: All carbon steel pipes are thoroughly inspected before shipment to ensure quality.
• Shipping Methods: Suitable for sea freight, land transportation, and container shipping.

支払い条件:

T/T, 一目でわかるL/C, ウエスタンユニオン, ペイパル, クレジットカード, 等.

会社概要

洛陽大唐能源科技有限公司, 株式会社. is a professional supplier of industrial valves and pipeline solutions. With years of experience in the energy and industrial sectors, we are committed to providing high-quality products and comprehensive services to customers worldwide. Our product range includes industrial valves, ERW steel pipes, and various pipeline components. We pride ourselves on strict quality control, 競争力のある価格設定, そして確実な配送. Our team of experienced engineers and sales professionals is dedicated to understanding your specific requirements and delivering tailored solutions that meet international standards. We look forward to being your trusted partner in pipeline and valve solutions.

ERW炭素鋼溶接管

よくある質問

Q1: What is the difference between ERW pipe and seamless pipe?

あ: エーカー (Electric Resistance Welded) pipe is manufactured by forming steel strip into a cylindrical shape and welding the longitudinal seam. It is more cost-effective, has consistent wall thickness, and is suitable for most general applications. Seamless pipe is manufactured without any weld seam, offering higher pressure resistance and better performance in high-temperature and high-pressure environments, but at a higher cost. For most fluid transmission, structural, and construction applications, ERW pipe provides an excellent balance of performance and economy.

第2四半期: What standards do your ERW carbon steel pipes comply with?

あ: Our ERW carbon steel pipes are manufactured in compliance with multiple international standards including ASTM A53, ASTM A500, API 5L, API 5CT, GB9711.1, から, BS, 彼, AISI, とEN. We can supply pipes according to the specific standard required for your project.

Q3: What sizes are available for ERW carbon steel pipes?

あ: We offer a comprehensive size range: outer diameter from 21.3mm to 323.8mm (1/2″ to 20″), wall thickness from 1mm to 22mm, and length from 1.0m to 12.0m. Custom sizes are also available upon request.

Q4: What is the delivery time for ERW steel pipes?

あ: For standard specifications with stock available, delivery can be completed within 7 日. For custom specifications or large orders, the delivery time is typically 15-21 日. Please contact us for specific delivery schedules based on your order quantity and specifications.

Q5: How are the pipes inspected before shipment?

あ: Each batch of pipes undergoes rigorous inspection including: chemical composition analysis, mechanical property testing, dimensional and appearance inspection, and non-destructive testing (NDT). All inspections are conducted in accordance with the applicable standard requirements to ensure product quality and reliability.

ERW炭素鋼溶接管