2 Inch Galvanized Steel Pipe

2 Inch Galvanized Steel Pipe
Details:
Product Name: 2 Inch Galvanized Steel Pipe
Nominal Size: 2" NPS / DN50
Outside Diameter: 60.3 mm / 2.375 in
Common Wall Thickness: SCH 20, SCH 40, custom thickness
Material Grades: Q195, Q235, Q345, ASTM A53 Gr.B, ASTM A500 Gr.B
Surface: Hot-dip galvanized / pre-galvanized / zinc coated
Pipe Ends: Plain end, threaded end, grooved end, beveled end
Length: 5.8 m, 6 m, 12 m, 20 ft, 21 ft, custom cut
Applications: Construction, fencing, scaffolding, plumbing, irrigation, solar mounting, industrial structures
Supply Type: Manufacturer, exporter, OEM cutting & fabrication
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Description
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Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 2 inch galvanized steel pipe in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.

 

2 Inch Galvanized Steel Pipe Supplier | ASTM A53 Schedule 40 Hot Dip Galvanized Pipe Manufacturer

2 inch galvanized steel pipe is a zinc-coated carbon steel pipe designed for projects requiring corrosion resistance, mechanical strength and long outdoor service life. With a nominal pipe size of 2 inches and a standard outside diameter of 60.3 mm / 2.375 inches, it is widely used in construction structures, fencing systems, water pipelines, irrigation networks, solar mounting frames and industrial support systems.

Compared with black steel pipe, galvanized pipe provides better protection against rust because the zinc layer acts as a sacrificial coating. For B2B buyers, the key purchase factors are usually standard compliance, zinc coating thickness, wall thickness, end treatment, length tolerance, inspection documents and export packaging.

Xi'an Dongmeng Group Co., Ltd supplies 2 inch galvanized steel pipes according to ASTM A53, ASTM A500, BS1387, EN10219, EN10255 and customer project specifications.

Products Size Chart

 

Main Products

Size

Wall Thickness

ERW steel pipe

1/2" -- 8"

1.5mm--10.0mm

Hot-dipped galvanized steel pipe

1/2" -- 8"

1.5mm--10.0mm

Square

Rectangular steel pipe

20x20--400x400mm,

20x40--400x600mm

1.3mm--20mm

Hot-dip galvanized

square / rectangular steel pipe

20x20--200x200mm,

20x40--250x150mm

1.5mm--7.5mm

Oil casing pipe, SSAW steel pipe

219mm-2020mm

5.0mm--28mm

Steel-plastic complex

steel pipe

1/2"--12"

1.5mm--10.0mm

Products Specification

 

Item Specification
Nominal Size 2 inch / DN50
Outside Diameter 60.3 mm / 2.375 in
Schedule Options SCH 10, SCH 20, SCH 40, SCH 80
Common SCH 40 Wall 3.91 mm / 0.154 in
Length 5.8 m, 6 m, 12 m, 20 ft, 21 ft, custom
Zinc Coating 40–120 μm or customized
Surface Hot dip galvanized, pre-galvanized
Ends Plain, threaded, grooved, beveled
Thread NPT, BSPT, BSP, custom
MOQ Usually 2 tons per size or project-based
Documents MTC, invoice, packing list, CO, third-party inspection if required

Chemical Composition

Grade C Mn P S Application
Q235 ≤0.22 ≤1.40 ≤0.045 ≤0.050 General structure, fencing, construction
Q345 / Q355 ≤0.20 ≤1.70 ≤0.035 ≤0.035 Higher-strength structural use
ASTM A53 Gr.B ≤0.30 ≤1.20 ≤0.05 ≤0.045 Pressure pipe, mechanical pipe, galvanized pipe
ASTM A500 Gr.B ≤0.26 ≤1.35 ≤0.035 ≤0.035 Structural tube and frame applications

Mechanical Properties

Standard / Grade Yield Strength Tensile Strength Elongation
Q235 ≥235 MPa 370–500 MPa ≥20%
Q345 / Q355 ≥345 MPa 470–630 MPa ≥20%
ASTM A53 Gr.B ≥240 MPa ≥415 MPa ≥20%
ASTM A500 Gr.B ≥315 MPa ≥400 MPa According to standard

Physical Properties

Property Typical Value
Density 7.85 g/cm³
Melting Point Approx. 1450°C
Zinc Coating Type Hot dip galvanized / pre-galvanized
Coating Function Sacrificial corrosion protection
Magnetic Property Magnetic
Surface Appearance Silver zinc coating, bright or regular spangle

Processing Performance Analysis

2 inch galvanized steel pipe offers good cutting, drilling, threading and grooving performance. It can be supplied in fixed lengths or cut-to-size for distributors, contractors and OEM projects. For threaded pipe, both ends can be protected with plastic caps to reduce thread damage during transportation.

Welding Performance Analysis

Galvanized steel pipe can be welded, but zinc fumes must be controlled during welding. For structural welding projects, proper ventilation, local zinc removal near the weld zone and post-weld zinc-rich paint repair are recommended. For projects requiring heavy welding, black pipe plus post-galvanizing may be a better option.

Corrosion Resistance Analysis

The zinc coating protects the steel substrate through barrier protection and sacrificial protection. Hot-dip galvanized pipe is preferred for outdoor, humid, agricultural, coastal and industrial environments. For highly corrosive areas, buyers may request thicker zinc coating, inner coating, epoxy sealing or additional anti-corrosion treatment.

Executive Standards

 

Standard Description
ASTM A53 Welded and seamless steel pipe, black and hot-dipped galvanized
ASTM A500 Cold-formed welded and seamless carbon steel structural tubing
BS1387 Steel tubes for water, gas and general engineering
EN10219 Cold formed welded structural hollow sections
EN10255 Non-alloy steel tubes suitable for welding and threading
JIS G3444 / G3466 Japanese structural steel pipe standards
GB/T 3091 Welded steel pipe for low pressure fluid service

Our Factory

2 Inch Galvanized Steel Pipe

 

2 Inch Galvanized Steel Pipe

 

2 Inch Galvanized Steel Pipe

 

2 Inch Galvanized Steel Pipe
 
2 Inch Galvanized Steel Pipe
 
2 Inch Galvanized Steel Pipe
 

Product Packaging

2 Inch Galvanized Steel Pipe
 
2 Inch Galvanized Steel Pipe
 

 

Technical Advantages Driving Market Preference

Enhanced Corrosion Protection
The hot-dip galvanization process creates a zinc-iron alloy layer (85-100 µm) that outperforms epoxy coatings in salt-spray tests (ASTM B117), particularly crucial for coastal projects using 2 in. galvanized steel pipe.

Dimensional Flexibility
From 1 2 in x 10 ft galvanized steel pipe for precision equipment to 2 in x 20 ft galvanized steel pipe for warehouse structural frames, standardized lengths reduce on-site fabrication costs by 18-22% (ASCE 2023 report).

Load-Bearing Superiority
The Schedule 40 1-1/2 in. galvanized steel pipe demonstrates 35% higher crush resistance than Schedule 10 equivalents, making it indispensable for underground installations.


Emerging Market Opportunities

Green Construction Boom
LEED-certified projects increasingly specify 2 inch Schedule 40 galvanized steel pipe for recyclable rainwater harvesting systems.

Agricultural Modernization
The 2 in. x 12 ft. galvanized steel pipe sees 40% YOY demand growth in automated irrigation projects across Southeast Asia.

Industrial Automation
Robotic assembly lines require durable frames built with 1-1/2 in. x 10 ft. galvanized steel pipe for EMI shielding and vibration resistance.


Strategic Inventory Considerations for Distributors

Regional Demand Analysis:
Coastal markets prioritize 2 in. galvanized steel pipe with supplemental zinc spray coatings
Earthquake-prone areas stock Schedule 40 1 1 2 galvanized steel pipe for flexible seismic bracing

Logistics Optimization:
Bundle 2 in x 10 ft galvanized steel pipe with compatible fittings to increase average order value
Offer 2 in. x 20 ft. galvanized steel pipe pre-cut services to attract prefab construction firms

Product Testing

 

Super long anti-rust life

Using hot-dip galvanizing technology, the thickness of the zinc layer is strictly controlled at 80-120μm (far exceeding the national standard of 50μm). It passes the ASTM A123 3000-hour salt spray test and has a service life of more than 30 years in extremely humid, acidic and alkaline environments. Its corrosion resistance is 5-8 times higher than that of ordinary steel pipes.

High strength carbon steel substrate

Selected low-carbon steel with grade Q235B and above, with tensile strength ≥375MPa, matched with Sch40 standard wall thickness (such as 2-inch pipe wall thickness 3.0-4.5mm), the bursting pressure is as high as 6.5MPa, which can meet the needs of high-pressure scenarios such as fire fighting, oil and gas transportation, etc.

2 Inch Galvanized Steel Pipe
2 Inch Galvanized Steel Pipe

Precise size control

Fully automatic high-frequency welding process, the weld strength reaches more than 95% of the parent material, and the outer diameter tolerance is controlled within **±0.5%** (such as DN50 pipe is accurate to 60.3±0.3mm), ensuring seamless compatibility with flanges, elbows and other pipe fittings.

Triple quality verification, traceable

100% quality inspection before leaving the factory: zinc layer adhesion scratch test, water pressure test (2.5MPa pressure for 30 seconds), eddy current flaw detection

Dual certification guarantee: ISO9001 quality management system certification + China Metallurgical Industry Information Standards Institute supervision

Each batch can be traced: laser marking production batch number, support third-party re-inspection

 

 

 

Our customers

 

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01

Galvanized pipes shipped to UAE

A UAE customer purchased 200 tons of galvanized steel pipes for the Abu Dhabi AI Dhafra photovoltaic power station project. The product has a zinc layer of 100μm and adds plastic sheaths at the pipe ends, reducing the overall cost of the pipeline by 40%.

 

UAE core cooperation plan (200 tons of galvanized steel pipe order)

Specification selection:

60% 2 inch schedule 40 galvanized steel pipe (6 meters fixed length, zinc layer ≥ 85μm)

30% 1-1/2 inch schedule 40 (6 meters/random length, special anti-sand coating for desert projects)

10% 2.5 inch galvanized pipe (wall thickness 4.0mm, port machinery reinforcement scenario)

Certification adaptation:

Saudi Arabia SASO certification + UAE ESMA certification (including heavy metal migration test report)

Islamic halal production system declaration (non-pork grease lubricant certificate)

02

Azerbaijan 500 tons galvanized steel pipe project

The Caspian Sea oilfield associated water treatment system upgrade project led by the Azerbaijan State Oil Company (SOCAR) requires the purchase of 500 tons of galvanized steel pipes for the construction of corrosive wastewater transportation pipelines in oil and gas fields.

Base material API 5L Grade B seamless steel pipe Sulfide stress corrosion cracking (SSCC) resistance increased by 40%

Galvanizing process Hot-dip galvanizing + inner wall epoxy coating (double protection) Zinc layer thickness ≥ 85μm (GOST 9.307-89 certification)

Pipe end treatment 30° groove prefabrication + polyethylene sheath Adapt to field welding environment and reduce on-site processing time

Connection method API 5B standard thread (can be equipped with API 16C flange) 100% compatible with existing oilfield equipment

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03

Solution for Dutch Client's 200-ton Galvanized Steel Pipe Project

Project Background
The government-led North Sea Offshore Wind Farm Base supporting water supply pipeline network project requires urgent procurement of 200 tons of 2-inch Schedule 40 galvanized steel pipes (compliant with EN 10240 standard) to connect seawater desalination equipment with the land-based pipeline network.

Product Specifications

Dimensions:

2-inch Schedule 40 Galvanized Steel Pipe

Outer Diameter: 60.3 mm

Wall Thickness: 3.2 mm

Corrosion Protection:

Zinc Coating Thickness: ≥90 μm (tested per ISO 1461 salt spray test)

Pipe Ends Pre-coated with Epoxy Sealant (to prevent salt fog corrosion during maritime transport)

04

Algeria 200 tons galvanized steel pipe solution

The Algerian National Energy Company (Sonatrach) led the Sahara oil and gas field water supply system renovation project, which required the purchase of 200 tons of galvanized steel pipes for underground water supply networks in high-temperature and high-salt-alkali environments

Base material S235JR carbon steel (EN 10025 standard) Yield strength ≥ 235MPa, adapted to underground settlement stress

Galvanizing process Hot-dip galvanizing + inner wall polyurethane coating (double anti-corrosion) Zinc layer thickness ≥ 75μm (NF A49 salt spray 2000 hours certification)

Pipe end treatment 45° groove prefabrication + polyethylene sheath Adapt to desert welding environment and reduce on-site processing time

Connection method EN 10255 standard thread (optional flange adapter) Compatible with European/North African general pipeline system

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05

Zimbabwe's various steel product solutions

Zimbabwe's infrastructure is very hot. The customer is a local steel dealer and an old customer of ours. The purchasing requirements are diverse, including round tubes, square tubes, hot dip, pre-coating, angle steel, channel steel, and H-shaped steel.

06

Turkish customer confirms 500 tons galvanized steel pipe

Turkish customer confirms 500 tons galvanized steel pipe order

The Turkish customer is a steel distributor with many customers in Europe. This time he came to China specifically to help the end customer check the product quality and spoke highly of our products.

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07

Burkina Faso


The customer is a large local steel distributor. They purchased steel pipes, steel bars and corrugated sheets from us. They sell these products very well locally and update their orders every three months on average.

08

Vietnamese customers visited the factory and confirmed an order of 500 tons

After visiting the factory, the Vietnamese customer confirmed the order of 500 tons. The Vietnamese customer is a very powerful supplier in Vietnam. The end customers are high-quality customers in North America such as the United States and Canada. They have high requirements for product quality and need to meet ASTM standards. We gave a very favorable price.

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How To Cooperate With Us?

Send us your size, wall thickness, standard, quantity and destination port to get a fast quotation.

Our address

Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province

Phone Number

+86 15769214734

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Inspection & Quality Assurance

Each order can be inspected according to project requirements:

Inspection Item Method
Outside Diameter & Wall Thickness Caliper / micrometer inspection
Zinc Coating Thickness Magnetic thickness gauge
Surface Quality Visual inspection
Weld Quality Eddy current / hydrostatic test if required
Thread Quality Thread gauge inspection
Mechanical Properties Tensile test
Chemical Composition Spectrometer analysis
Documents MTC / EN10204 3.1 / third-party inspection

FAQ

Q1: What is the outside diameter of 2 inch galvanized steel pipe?
A: The standard outside diameter is 60.3 mm / 2.375 inches.

Q2: What is the wall thickness of 2 inch Schedule 40 galvanized pipe?
A: The common SCH 40 wall thickness is about 3.91 mm / 0.154 inches.

Q3: Can you supply threaded 2 inch galvanized pipe?
A: Yes. NPT, BSPT, BSP and customized threads are available.

Q4: What standards can you supply?
A: ASTM A53, ASTM A500, BS1387, EN10219, EN10255, JIS and GB standards are available.

Q5: Can the pipe be cut to 6 meters or 20 ft?
A: Yes. Standard and custom lengths are available.

Q6: Is hot-dip galvanized pipe better than pre-galvanized pipe?
A: Hot-dip galvanized pipe usually provides thicker zinc coating and better outdoor corrosion resistance.

Q7: Can you provide MTC?
A: Yes. Material Test Certificate and third-party inspection can be provided.

Q8: What industries commonly buy 2 inch galvanized steel pipe?
A: Construction, fencing, plumbing, agriculture, solar mounting, infrastructure and industrial fabrication.

 

 

 

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