Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of precision-cut 1 inch steel tube (dn25) | astm certified | free samples + fast shipping in China. Welcome to consult the quotation and import cheap precision-cut 1 inch steel tube (dn25) | astm certified | free samples + fast shipping made in China here from our factory.
►How many millimeters is the diameter of one inch pipe?
The 1 inch tube corresponds to DN25, and the standard outer diameter is 33.4mm. But 32mm is also OK in usually application.
The nominal diameter(also known as nominal diameter and nominal diameter) is used in order to make the pipe and pipe fittings unify.
For example, the thickness of welded pipe can be divided into thin wall steel tube, ordinary steel pipe and thickened steel tube. Its nominal diameter is not an outer diameter or an inner diameter, but a nominal size approximating the inner diameter of a common steel tube.
The diameter of each nominal diameter corresponds to a diameter, and its inner diameter varies with the thickness. The nominal diameter can be expressed in the metric "mm (millimiter)" and can be expressed by the British "in (inch)" .
----------"Definition and selection of pipe element DN (nominal size)" (GB/T 1047-2005)
►1 inch steel tubes can be used widly in our daily life
(1)construction engineering
Water supply/drainage systems: Galvanized layer prevents corrosion in water pipelines.
Structural supports: Stair handrails, scaffolding cross-members for outdoor durability.
(2)Energy and Power
Cable protection conduits: Resists moisture and chemical corrosion in buried lines.
LPG pipeline brackets: Meets anti-corrosion and explosion-proof requirements.
(3)Agricultural Water Engineering
Farm irrigation systems: 1-inch diameter compatible with sprinklers, resists fertilizer corrosion.
Livestock fencing: Smooth surface for easy cleaning.
(4)Special Industrial Scenarios
Auxiliary pipes for chemical equipment: For non-corrosive media like cooling water.
►Advantages Of TYT STEEL PIPES
1.Factory and experimental test center to achieve cost and quality control.
2.Processing lines, can satisfy various requests of customers. Producing and processing one-top service.
3.Is the top five in Tianjin.
4.We have been cooperate with Alibaba for 18 years, we are gold supplier and assessed supplier, we are one of the first batch of companies do exporter in this industry.
Tianjin TianYingTai(TYT) Steel Pipe Co., Ltd is located in Jinghai, Tianjin, which is professionally engaged in steel production sales, steel processing, greenhouse engineering with accessories and export business. It has been experienced for 20 years so far. We have 13 production lines for various kinds of steel pipe, 10 processing production lines and 2 environmental production hot-dipped galvanizing lines. We not only can produce 450,000 tons of various sizes of ERW steel pipe, but also can produce deep processing pipe with 100,000 tons. Our annual production capacity of hot dipped galvanized steel pipe is 200,000 tons, capacity of greenhouse engineering material is 250,000 tons and highway column and guardrail is 200,000 tons.
►PACKAGING & SHIPPING
1. Modern Warehousing Capabilities
A fully enclosed, clean, and well-organized modern logistics warehouse spanning 20,000 square meters, offering integrated services including storage, packaging, documentation, and dispatch.
Daily throughput of 20–25 containers with 100% packing accuracy, ensuring efficient and precise operations.
2. Professional Transportation Support
A dedicated fleet of 10+ 13-meter semi-trailers, prioritizing transport efficiency and quality for customer convenience.
Optimized logistics networks to reduce costs and provide value-added services (e.g., customized transport solutions).
3. Standardized Steel Pipe Storage & Transport
Strict implementation of SOPs to prevent impact, scratching, denting, flattening, deformation, and rain exposure during handling.
End-to-end quality control guarantees zero damage from inbound storage to final delivery.
►OUR CUSTOMERS
So Many Partners Have Chosen TYTSTEEL with Satisfaction.
If you need steel pipes, please contact us immediately, and we'll give you a discounted quote.
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