進捗
製品概要
Our Carbon Steel Seamless Tube (also known as seamless steel pipe) is manufactured from high-quality carbon steel billets through hot rolling or cold drawing processes. With no welded seam, seamless tubes offer superior strength, pressure resistance, and reliability for high-pressure and high-temperature applications. We supply a comprehensive range of carbon steel seamless tubes in various grades, sizes, and specifications to meet your project requirements.
仕様
Steel Grades: ASTM A106 Gr.B, A53 Gr.B, API 5L Gr.B, 20#, 45#, Q345B, 16ん, ST37, ST52, 1020, 1045
標準: ASTM A106, ASTM A53, API 5L, ギガバイト/トン 8163, ギガバイト/トン 3087, から 1626, で 10210, JIS G3454
Outer Diameter (の): 10.2 んん – 720 んん (1/2″ – 28″)
肉厚 (WT): 1.5 んん – 60 んん (SCH 10 – SCH 160, XXS)
長さ: 5.8メートル, 6メートル, 11.8メートル, 12メートル, or as per customer request (SRL, DRL)
Surface Treatment: 黒 (varnished/oiled), 亜鉛メッキ, 3PE/3PP Coated, FBE Coated, Painting
End Finish: プレーンエンド, ベベルエンド, Threaded End (with coupling)
許容範囲: の: ±1%, WT: ±10%, 長さ: ±50mm
プロセス: 熱間圧延 (HR), Cold Drawn (CD), 冷間圧延 (CR)
主な特長 & 利点
- Superior pressure resistance – no welded seam eliminates weak points
- Excellent mechanical properties – high tensile strength and toughness
- Wide size range – from small diameter precision tubes to large diameter pipes
- Customizable specifications – grades, sizes, lengths, and coatings tailored to your needs
- Rigorous quality control – full traceability from raw material to finished product
- Cost-effective – competitive pricing with bulk order discounts
- Fast delivery – large inventory for standard sizes, custom orders in 15-30 日々
- Certified quality – ISO 9001, API Q1, CE, and third-party inspection available
アプリケーション
- Oil and gas transmission pipelines
- Petroleum refining and petrochemical plants
- Power plants – boiler tubes, superheater tubes
- Hydraulic and pneumatic systems
- Construction and structural applications
- Mechanical engineering and machinery manufacturing
- Automotive and transportation components
- Water supply and sewage systems
- 熱交換器と凝縮器
- Mining and mineral processing equipment
品質管理 & テスト
Every batch of our carbon steel seamless tubes undergoes strict quality control procedures:
Raw Material Inspection: Chemical composition analysis (spectrometer), dimensional verification
Process Control: In-line monitoring of rolling temperature, 壁の厚さ, and surface quality
Finished Product Testing: Hydrostatic pressure test, ultrasonic flaw detection (UT), eddy current testing (ET), tensile test, impact test, 硬さ試験, flattening test, flaring test
表面検査: Visual inspection for cracks, folds, scars, and other defects
ドキュメンテーション: ミルテスト証明書 (MTC) per EN 10204 3.1, material traceability records
包装 & 運送
包装: 標準的な輸出梱包 – bundles tied with steel strips, hexagonal bundles, 木製パレットまたは木箱, end caps for protection, waterproof wrapping
マーキング: Steel grade, サイズ, 熱数, 標準, メーカーロゴ (painted or stenciled)
貿易条件: FOB, CIF, CFR, EXW, DDP
支払い: T/T (30% デポジット, 70% 出荷前に), 一目でわかるL/C, ウエスタンユニオン, ペイパル (サンプル注文)
リードタイム: 標準サイズの在庫あり – 3-7 日々; カスタムサイズ – 15-30 日々
MOQ: 1 ton for standard sizes; カスタムオーダー交渉可能
積み込み口: 青島, 上海, 天津, またはリクエストに応じて
私たちを選ぶ理由
以上で 15 years of experience in steel manufacturing and export, we are a trusted supplier of carbon steel seamless tubes to customers in more than 50 国. Our factory is equipped with advanced production lines and testing equipment, ensuring consistent quality and on-time delivery. We offer one-stop service from material selection to after-sales support, and our experienced engineering team can provide technical consultation and customized solutions for your specific applications. 競争力のある見積もりについては今すぐお問い合わせください!
