Principaux fabricants de tubes en acier au carbone En Chine depuis 1998
TUSPIPE is a China Carbon steel pipe manufacturer with a 500,000 MT annual production capacity.
TUSPIPE-Carbon STEEL PIPE MANUFACTURER
Tianjin United Steel Piping Co., Ltd. (TUSPIPE) is a trusted Chinese supplier of carbon steel pipes, established in 1998. We have three advanced production lines with an annual capacity of 500,000 tons, providing high-quality product solutions to global customers. Our main products include: Oil and gas casing and tubing, Line pipes and pipeline pipes, Fire protection pipes, Structural pipes and pile pipes, Heat exchanger tubes, slotted pipes, drive shaft tubes, axle tubes, compressor tubes, idler tubes, and solar tracker torque tubes.
All our carbon steel pipes strictly comply with international standards, including API SPEC 5CT, API SPEC 5L, ASTM A53, EN10217, EN10219, EN10255, JIS G 3444, JIS G 3452, AS/NZS 1163, AS/NZS 1074, GOST 10704/10705/20295, and more. We provide durable, standards-compliant carbon steel pipe solutions. Contact us today for premium carbon steel pipes tailored to your needs.
Grand inventaire
TUSPIPE holds around 20,000 MT of black steel pipe and raw materials in stock, so we can deliver quickly when you have an urgent request.
Expertise professionnelle
A team of 12 professional, experienced engineers at TUSPIPE makes the production process more efficient and functional.
Une expérience riche
Notre usine a été créée en 1998 et nous avons accumulé une riche expérience dans la production de tubes d'acier et les projets d'ingénierie.
Facile à communiquer
Vous vous adressez directement à l'usine, ce qui permet de répondre rapidement à votre question avec une approche plus professionnelle. Des services multilingues sont également disponibles.
SCÉNARIOS D'UTILISATION
Our carbon steel pipes are used in a wide range of industries, as you can see, whether it’s construction, oil and gas transport, or power and piling jobs. We only make quality carbon steel pipe to help you run your business better.
LIGNE DE PRODUCTION ET ÉQUIPEMENT
Déroulement
Accumuler
Formation
Soudage à haute fréquence
Double traitement thermique
Refroidissement de l'air et de l'eau
Taille
Fin du traitement
Usinage de tuyaux
Vernissage / Enduction
Emballage
Rembourrage des conteneurs
LE CONTRÔLE DE LA QUALITÉ
Gestion des fournisseurs
Tianjin United Steel Piping Co., Ltd (TUSPIPE) conducts strict audits of suppliers, verifying their production qualifications and capacity to ensure that the raw material quality control procedures meet requirements. In addition, the company evaluates suppliers annually and assesses past performance in quality control, document control, delivery times, and other factors to ensure suppliers meet our product quality requirements.
Avant la production
After getting the hot-rolled coil, the quality assurance team sends an inspector. They check for cracks, pits, and other surface defects. These issues could impact later production. Inspection staff not only conduct visual checks but also take samples from the coil plate. They do this for chemical composition analysis and mechanical testing, following standard requirements. Then they compare the results with the material quality certificate issued by the coil plate supplier. If the analysis results do not meet the standard requirements, the raw material will be returned to the supplier for replacement.
Pendant la production
To ensure our carbon steel pipes meet the required standards, quality engineers, on-site inspection personnel, and front-line production workers need to make great efforts. In the production process, we will carry out the following inspections and tests on the steel pipe according to the standard requirements:
Essai de traction
That measures the force required to pull on a pipe. By analyzing these results, engineers can determine whether a material is suitable for its intended application.
Essai métallographique
Metallographic tests are an important means of experimental research on metal materials.
Essai d'impact Charpy
It is generally a test method used to determine the safety, reliability, and effectiveness of a product when subjected to external impacts or actions.
Analyse des composants chimiques
Pour l'analyse spectrale, on peut utiliser le spectre d'émission ou le spectre d'absorption. Cette méthode a l'avantage d'être très sensible et rapide.
Test de résistance à la chute et au déchirement
This experiment uses a drop hammer at a specified height to break the sample in the supported beam state and evaluate the relevant performance results.
Test d'aplatissement
The flattening test is a method used to assess the deformation performance of a metal tube flattened to a specified size and to detect defects.
Revêtement, marquage et emballage
After the welded steel pipe is produced, Tianjin United Steel Piping Co., Ltd (TUSPIPE) applies a surface coating to the carbon steel pipe, according to the customer’s requirements, to prevent corrosion. Standard coated with black paint, varnish, and anti-rust oil, these materials can provide temporary anti-rust protection during transportation. If FBE, PE, or PP coatings are needed, the pipes will be transported and finished in a coating mill.
We apply a bar code to the inner wall of each steel pipe, and each bar code is unique to each pipe end. The bar code is equivalent to the ID card for each unit of steel pipe, recording the heat number, tube number, steel grade, and production information for each pipe. After completing the coating process, production workers scan the bar code to retrieve the corresponding product information and mark the pipes in accordance with standard and contract requirements to ensure product traceability. Generally speaking, product packaging plays a crucial role in protecting products during transportation, so the company is also very concerned about this process. Based on the size, coating, and other processing information of the steel pipe, the company usually uses end caps, PVC wrap, nylon slings, galvanized strips, fumigated wood, and other materials to protect the steel pipe. At the same time, the engineers can generate a customized packing scheme for customers who need more robust, stable, and easy-to-unload packaging solutions.
Avant l'expédition
Before delivery to customers, the inspector rechecks the appearance, packaging, markings, labels, tags, and other specifications of the black steel pipe to ensure customers do not receive any defective products. After passing inspection, the quality assurance department of Tianjin United Steel Piping Co., Ltd (TUSPIPE) issues a mill test certificate for each batch of shipped products.
OUR CERTIFICATIONS
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