As our flagship product, the double sides submerged arc spiral steel pipe can be crafted with numerous types of steel including Q235B, Q345, L245, 20#, L290(X42), L360(X52), etc. Maximized at X80, the steel grade may consist of carbon, low alloy, or other special varieties. It is available with an external diameter of 219 to 3620mm and a wall thickness of 4 to 31mm. This product is in full compliance with standards such as API 5L, GB/T9711.1, GB/T9711.2, and SY/T5037-2000. As a common structuring component of piers, roads, and bridges, our pipe has a broad range of applications in fields such as sewerage, transportation, water supply, coal gas, petroleum gas, and civil engineering. It is an excellent medium for the safe conveying of liquids or gases.
At our disposal are advanced manufacturing equipment and complete sets of testing instrument. To properly ensure the quality of our pipes, we implement precision devices such as the eddy current flaw detector, ultrasonic flaw detector, hydrostatic testing machine, WE-600 universal testing machine, WE-1000A hydraulic universal testing machine, and the complete metallographic test set.
Our production facilities are situated within the Yanshan County Industrial Park of Hebei Province, a region known for pipeline manufacturing. The Huanghua Port is to the east and the cities of Beijing/Tianjin are just to the north. We are only 200km from the Tianjin New Harbor, a bustling hub for import and export. The local logistic grid grants us convenient access to the Beijing-Shanghai Railway as well as both the 10 and 205 national highways.
TIANHUI has been authenticated by the ISO9001:2000 international quality control system. We have passed both API 5L American Petroleum Institution Certification and the Environment & Safety Certification. Additionally, we have obtained the Special Equipment Manufacturing License, issued by the People's Republic of China. All production procedures are in compliance with relevant international standards. The consistent quality of products and the sincerity of our services have garnered positive feedback from customer far and wide.
Contact us for business opportunities. Through cooperation and understanding, we will achieve mutually beneficial arrangements!
Inaugurated in 2000, TIANHUI has since experienced rapid periods of growth and expansion. We started with 100 acres and a registered capital of 50 million CNY. Now, we operate from a 150 acre production base and own 120 million CNY in fixed assets. IN 2010, a brand new factory was constructed and outfitted with state-of-the-art production and inspection equipment. In February of the following year, we passed the certifications for ISO14001, ISO9001:2000, and GB/T28001. On June 1, 2012, we passed the American Petroleum Institution Certification and obtained the Special Equipment Manufacturing License for pressure pipeline.