1-Inch (DN25) Galvanized Mild Steel Pipe for Industrial & Plumbing Applications
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1-Inch (DN25) Galvanized Mild Steel Pipe for Industrial & Plumbing Applications Description
Engineered for plumbing and water distribution applications, our 1-inch (DN25) galvanized steel pipe is manufactured from high-quality mild steel with a protective zinc coating. This combination provides enhanced protection against rust and environmental corrosion, making it suitable for demanding construction and infrastructure projects.
Produced through a rigorous hot-dip galvanizing process, the pipe features a uniform zinc coating designed to extend service life in both indoor and outdoor environments. Accurate dimensional control ensures reliable installation performance and compatibility with threaded connections in various piping systems.
As a direct manufacturer, we maintain strict quality control throughout every production stage, including raw material inspection, weld integrity testing, coating thickness measurement, and dimensional verification. Each batch is carefully inspected to deliver consistent quality and reliability for distributors, contractors, and engineering projects.
Available in various wall thicknesses, lengths, and surface finishes, these pipes can be customized to meet specific project requirements. They provide an excellent balance of strength, durability, and cost-effectiveness, making them a reliable solution for professional plumbing and industrial piping systems.
Product Parameters
| Item | Specification |
|---|---|
| Nominal Size | 1 inch (DN25) |
| Outside Diameter | 33.4 mm (1.315 inch) |
| Standard & Material | ASTM A53 Grade B / BS 1387 / EN 10255 S195T / GB/T 3091 Q235B |
| Wall Thickness | SCH 40 (3.38 mm) / SCH 80 (4.55 mm) / BS 1387 Medium & Heavy |
| Coating | Hot-dip galvanized, zinc coating ≥ 300 g/m² per ASTM A153 / EN 10240 |
| End Type | Threaded & Coupled (NPT/BSPT), Plain Ends, or Grooved Ends Available |
| Certification & Testing | ISO 9001:2015, EN 10204 3.1 Mill Test Certificate (MTC), Hydrostatic Testing |
| Length | 6 m / 12 m / Custom cut-to-length |
Dimensional Data
| Schedule / Grade | OD (mm) | OD (inch) | Wall (mm) | Wall (inch) | ID (mm) | Weight (kg/m) | Weight (lb/ft) | Test Pressure (psi) |
|---|---|---|---|---|---|---|---|---|
| SCH 40 (Standard) | 33.4 | 1.315 | 3.38 | 0.133 | 26.6 | 2.5 | 1.68 | 2,500 |
| SCH 80 (Extra Strong) | 33.4 | 1.315 | 4.55 | 0.179 | 24.3 | 3.24 | 2.17 | 3,500 |
| BS 1387 Medium | 33.7 | 1.327 | 3.25 | 0.128 | 27.2 | 2.44 | 1.64 | 2,300 |
| BS 1387 Heavy | 33.7 | 1.327 | 4.05 | 0.159 | 25.6 | 2.97 | 2 | 2,900 |
Mechanical Properties by Standard
| Property | ASTM A53 Gr. B | BS 1387 | EN 10255 S195T | GB/T 3091 Q235B |
|---|---|---|---|---|
| Tensile Strength (MPa) | ≥ 415 | 320–460 | 320–520 | 370–500 |
| Yield Strength (MPa) | ≥ 240 | ≥ 195 | ≥ 195 | ≥ 235 |
| Elongation (%) | ≥ 22 (50 mm) | ≥ 20 | ≥ 20 | ≥ 23 |
| Hydrostatic Test | ≥ 2,500 psi | 50 bar (725 psi) | 50 bar (725 psi) | Per GB/T 241 |
| Zinc Coating (g/m²) | ≥ 300 (ASTM A153) | ≥ 300 | ≥ 300 (EN 10240) | ≥ 300 |
Key Features of JGT Group 1-Inch (DN25) Galvanized Mild Steel Pipe
Long-Lasting Corrosion Resistance Through Hot-Dip Galvanizing
Unlike conventional surface coatings, our hot-dip galvanizing process creates a metallurgically bonded zinc coating on the mild steel substrate. This durable protective layer provides excellent corrosion resistance and helps extend service life in humid, outdoor, and demanding plumbing environments.
Reliable Mechanical Strength for Demanding Applications
Manufactured from high-quality mild steel, our 1-inch (DN25) galvanized steel pipes offer excellent structural strength and pressure resistance. Each pipe is produced under strict quality control to ensure reliable performance during transportation, installation, and long-term operation.
Consistent Zinc Coating Thickness & Quality Control
As a direct manufacturer, we maintain strict control over every production stage. Each batch is inspected using professional coating thickness measurement methods to ensure uniform zinc coverage, consistent quality, and improved corrosion protection throughout the product lifecycle.
Accurate Dimensions for Efficient Installation
With advanced manufacturing equipment and strict process control, we maintain precise control over pipe diameter, wall thickness, and threading accuracy. This ensures compatibility with standard fittings, valves, and connection systems, helping contractors achieve faster and more efficient installation.
Wide Range of Industrial & Commercial Applications
Our galvanized steel pipes are widely used in various infrastructure and building projects, including municipal water supply, commercial plumbing systems, fire protection pipelines, HVAC systems, and general industrial applications.
Custom Specifications & Comprehensive Factory Inspection
To meet different project requirements, we provide flexible customization options, including pipe lengths, wall thicknesses, threading specifications, and export packaging solutions. Before shipment, every order undergoes strict factory inspection to ensure reliable quality and delivery consistency.
Cost-Effective Solution for Long-Term Infrastructure Projects
Combining the strength of mild steel with the corrosion protection of hot-dip galvanizing, our galvanized pipes provide an excellent balance of durability, performance, and cost efficiency. They are a practical choice for contractors and distributors seeking reliable piping solutions with reduced maintenance requirements.
Applications of JGT Group 1-Inch (DN25) Galvanized Mild Steel Pipe
The galvanized steel pipe for plumbing system is widely used in residential, commercial, and industrial projects where durability and corrosion resistance are important. The 1 inch size is commonly selected for water supply pipelines, building plumbing networks, and utility connections due to its balanced flow capacity and easy installation.
In residential construction, this galvanized mild steel pipe is often used for cold water supply lines, household plumbing connections, and outdoor water distribution systems. Its strong zinc coating helps protect the pipe from moisture and extends service life.
For commercial buildings, hotels, factories, and warehouses, galvanized steel pipes are used in plumbing infrastructure, fire sprinkler systems, HVAC support piping, and equipment connections. Their mechanical strength allows them to perform reliably in demanding environments.
The pipe is also suitable for agricultural irrigation systems, greenhouse structures, and general engineering applications where steel durability is required. Contractors and project engineers choose galvanized pipes because they provide dependable performance, compatibility with standard fittings, and reduced maintenance costs.
With professional manufacturing experience and strict quality inspection, our 1 inch galvanized steel pipe delivers consistent performance for various plumbing and construction requirements worldwide.
FAQ：
What is a 1 inch galvanized steel pipe used for?
A 1 inch galvanized steel pipe is mainly used for plumbing systems, water supply lines, fire protection systems, HVAC applications, and general construction projects. Its corrosion-resistant zinc coating makes it suitable for environments exposed to moisture.
What is the difference between galvanized steel pipe and mild steel pipe?
Mild steel pipe is made from low-carbon steel and provides good strength and weldability. Galvanized steel pipe is mild steel pipe with a zinc coating added to improve corrosion resistance and extend service life.
Is galvanized mild steel pipe suitable for water supply systems?
Yes, galvanized mild steel pipe is commonly used in water supply applications, especially in building plumbing systems and industrial water networks. The zinc coating helps protect the steel from corrosion and provides long-term durability.
How long does a galvanized steel pipe last?
The service life depends on installation conditions, water quality, coating thickness, and environmental exposure. Under normal conditions, high-quality galvanized steel pipes can provide decades of reliable performance.
Can the 1 inch galvanized steel pipe be customized?
Yes. Manufacturers can customize pipe length, wall thickness, threading type, surface treatment, packaging, and other specifications according to project requirements.
How do you ensure the quality of galvanized steel pipes?
Professional manufacturers conduct multiple quality inspections, including raw material testing, dimensional measurement, zinc coating inspection, welding quality checks, and final product verification. These procedures help ensure consistent performance and reliability.
Application Field
Bridge
Oil pipeline
Chemical industry
Steel structure
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