8 Inch Galvanized SSAW Steel Pipe for Water Pipeline Construction
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8 Inch Galvanized SSAW Steel Pipe for Water Pipeline Construction Description
The 8-inch galvanized spiral welded steel pipe is designed for reliable water transmission applications where strength, corrosion resistance, and long-term service performance are required. Manufactured using the Spiral Submerged Arc Welding (SSAW) process, this pipe provides consistent dimensions, reliable weld integrity, and dependable mechanical performance for municipal water networks, industrial fluid systems, and infrastructure projects.
Produced by experienced steel pipe specialists, each pipe undergoes strict quality control procedures, including chemical composition testing, weld inspection, dimensional verification, and coating evaluation. The galvanized protective coating provides enhanced resistance against rust and environmental corrosion, supporting both outdoor installations and underground applications when specified according to project conditions.
Available in customized specifications, including wall thickness, length, and coating options, the pipe can be manufactured to meet applicable ASTM, API, EN, or AWWA standards based on project requirements.
With proven performance in water supply systems, industrial pipelines, and civil infrastructure projects, JGT Group’s 8-inch galvanized SSAW steel pipe delivers a practical combination of durability, reliability, and installation efficiency for contractors, distributors, and engineering partners worldwide.
Product Parameters
| Item | Specification |
|---|---|
| Nominal Size | 8 inch (DN200) |
| Outside Diameter | 219.1 mm (8.625 inch) |
| Manufacturing Process | SSAW — Spiral Submerged Arc Welded (double-sided) |
| Wall Thickness | 6.0 / 6.35 / 7.0 / 8.0 / 8.18 / 9.5 / 10.0 / 12.7 mm |
| Material Grade | API 5L Gr. B / ASTM A252 Gr. 2 / EN 10224 L235 / GB/T 9711 L245 |
| External Coating | Hot-dip galvanized (ISO 1461) or 3LPE (DIN 30670) |
| Internal Lining | Bare / epoxy (AWWA C210) / cement mortar (AWWA C205) |
| Length | 6 m / 12 m standard; longer lengths up to 18 m on request |
| Certification | ISO 9001:2015, MTR EN 10204 3.1, hydrostatic tested, RT/UT weld |
Technical Specifications
Complete dimensional, mechanical, and hydraulic data for the 8 inch galvanized SSAW steel pipe for water pipeline construction.
Dimensional & Hydraulic Data — 219.1 mm OD
| Wall (mm) | Wall (inch) | ID (mm) | Weight (kg/m) | Weight (lb/ft) | MAOP (bar) | Flow Area (m²) | Flow @ 1.5 m/s (m³/h) |
|---|---|---|---|---|---|---|---|
| 6 | 0.236 | 207.1 | 31.5 | 21.2 | 43 | 0.0337 | 182 |
| 6.35 | 0.250 | 206.4 | 33.3 | 22.4 | 46 | 0.0335 | 181 |
| 7 | 0.276 | 205.1 | 36.6 | 24.6 | 51 | 0.0330 | 178 |
| 8 | 0.315 | 203.1 | 41.6 | 28.0 | 58 | 0.0324 | 175 |
| 8.18 | 0.322 | 202.7 | 42.5 | 28.6 | 60 | 0.0323 | 174 |
| 9.5 | 0.374 | 200.1 | 49.1 | 33.0 | 69 | 0.0315 | 170 |
| 10 | 0.394 | 199.1 | 51.6 | 34.7 | 73 | 0.0311 | 168 |
| 12.7 | 0.500 | 193.7 | 64.6 | 43.4 | 93 | 0.0295 | 159 |
Mechanical Properties by Standard:
| Property | API 5L Gr. B PSL 1 | ASTM A252 Gr. 2 | EN 10224 L235 | GB/T 9711 L245 |
|---|---|---|---|---|
| Tensile Strength (MPa) | ≥ 415 | ≥ 415 | 360–500 | ≥ 415 |
| Yield Strength (MPa) | ≥ 245 | ≥ 240 | ≥ 235 | ≥ 245 |
| Elongation (50 mm, %) | ≥ 23 | ≥ 22 | ≥ 24 | ≥ 21 |
| Charpy Impact | Optional | Not required | ≥ 27 J @ 0°C | Optional |
| Hydrostatic Test | ≥ 60% SMYS | ≥ 60% SMYS | ≥ 50 bar | ≥ 60% SMYS |
| Weld NDT | 100 percent UT or RT | 100 percent UT or RT | 100 percent UT or RT | 100 percent UT or RT |
Coating & Lining Options
| Hot-Dip Galvanized | 3LPE (3-Layer Polyethylene) | FBE (Fusion Bonded Epoxy) | |
|---|---|---|---|
| Standard | ISO 1461 | DIN 30670 / CSA Z245.21 | AWWA C213 / CSA Z245.20 |
| Coating Thickness | 85–140 μm (min 610 g/m²) | 1.8–3.7 mm (total system) | 350–500 μm |
| Temperature Range | -40°C to +200°C | -40°C to +80°C | -40°C to +100°C |
| Soil Condition | Low–moderate corrosivity | Aggressive, high chloride | Moderate–high corrosivity |
| Best For | Above-ground, mild buried | Buried transmission mains | Buried distribution mains |
| Joint Coating | Zinc-rich paint | Heat-shrink sleeve | Liquid epoxy |
Key Features of JGT Group 8 Inch Galvanized SSAW Steel Pipe
For water transmission, irrigation, and infrastructure applications, JGT Group’s 8-inch galvanized Spiral Submerged Arc Welded (SSAW) steel pipe provides a reliable combination of structural strength, corrosion protection, and long-term service performance.
Corrosion Protection: A durable zinc coating helps protect the carbon steel substrate against moisture, atmospheric exposure, and corrosive environments, reducing surface corrosion and supporting extended service life compared with unprotected steel.
Spiral Weld Performance: Manufactured using the SSAW process, the helical weld design provides reliable structural performance, consistent weld quality, and efficient production flexibility for customized pipe requirements.
Load Resistance: Manufactured from quality carbon steel, these pipes provide dependable strength and impact resistance for buried pipeline systems and demanding operating conditions.
Quality Assurance: Production is controlled through strict inspection procedures, including raw material verification, weld seam testing, coating thickness measurement, and dimensional inspection to ensure compliance with project specifications.
Customized Solutions: JGT Group offers flexible configurations, including customized wall thicknesses, pipe lengths, zinc coating specifications, and end preparations such as beveled or plain ends.
Long-Term Cost Efficiency: The galvanized protective layer helps reduce maintenance requirements and supports reliable pipeline operation, providing a practical solution for contractors, distributors, and infrastructure developers.
Application:
Municipal Water Supply Systems
Used in water distribution networks and infrastructure projects where reliable flow performance and corrosion resistance are required. The galvanized coating provides effective protection against external corrosion caused by moisture and environmental exposure, helping maintain pipeline durability during long-term operation.
Industrial Fluid Distribution
Suitable for factories, processing facilities, and industrial water systems requiring dependable pipeline strength and consistent performance. The carbon steel construction provides excellent mechanical properties to withstand operational loads and site conditions.
Agricultural Irrigation Infrastructure
Applied in irrigation pipelines and water conveyance systems where durability, installation flexibility, and resistance to external conditions are important factors. The pipe design supports stable operation under varying field environments.
FAQ:
What is an 8 inch galvanized steel pipe used for?
The 8 inch galvanized steel pipe is mainly used for water transportation systems, including municipal water supply, industrial water pipelines, irrigation networks, and fire protection systems. Its galvanized coating provides additional corrosion resistance, making it suitable for outdoor and underground installations.
What is a galvanized SSAW steel pipe?
A galvanized SSAW steel pipe is manufactured using the Spiral Submerged Arc Welding process and then coated with zinc for corrosion protection. The SSAW production method creates a spiral welded structure that provides good strength, flexibility, and cost efficiency for large diameter pipeline applications.
Why choose galvanized steel pipe for water pipeline construction?
Galvanized steel pipe offers several advantages for water pipeline construction, including high mechanical strength, corrosion resistance, long service life, and reduced maintenance requirements. The zinc coating helps protect the steel surface from rust, especially in humid or outdoor environments.
What standards can the galvanized steel pipe meet?
The pipe can be manufactured according to different international and project standards, including ASTM, API, EN, and customer-specific specifications. Requirements such as diameter, wall thickness, zinc coating thickness, length, and testing procedures can be customized.
How is the quality of the pipe controlled?
Professional manufacturers use strict quality control systems during production. Inspection processes may include raw material testing, chemical analysis, welding inspection, ultrasonic testing, coating thickness measurement, hydrostatic testing, and final dimensional checks before shipment.
Can the 8 inch galvanized steel pipe be customized?
Yes. Customers can request customized specifications based on engineering needs, including wall thickness, pipe length, surface coating, end type, and packaging requirements. Technical support is usually available for project-based orders.
What is the service life of galvanized steel pipe?
The service life depends on factors such as environment, water conditions, coating thickness, and installation quality. Under proper conditions, galvanized steel pipe can provide reliable service for many years with minimal maintenance.
How can I order galvanized SSAW steel pipe?
Customers typically provide project specifications, required standards, quantities, and delivery requirements. The manufacturer can then confirm technical details, provide quotations, arrange production, and supply inspection documents before shipment.
Application Field
Bridge
Oil pipeline
Chemical industry
Steel structure
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