Section shape: Round
Thickness: 1.0mm-4.0mm
Outer diameter: 87mm-92mm
Length:1m-12m
BASIC INFO
Extra Process
Packaging Shipping FAQS
High-Strength 3″ Round Steel Tubing for Structural & Construction Projects
TXN Metals is a premier manufacturer specializing in wholesale 3″ round steel tubing. Engineered for exceptional structural durability, our 3-inch galvanized round steel pipes offer high load-bearing capacity and robust corrosion resistance, making them the preferred choice for industrial frameworks, scaffolding, agricultural infrastructure, and pipeline systems worldwide.
3-Inch Galvanized Tubing Technical Specification Sheet
As a direct factory supplier, we engineer our 3 inch round steel tubing in strict compliance with global industrial standards. Review our standard specifications below available for international bulk wholesale:
| Parameter | Standard Specifications |
|---|---|
| Product Name | 3″ Round Steel Tubing (3 Inch Galvanized Pipe) |
| Section Shape | Round |
| Wall Thickness | 1.2mm – 4.5mm (Customizable thickness based on project requirements) |
| Outer Diameter (OD) | 88.9mm (Standard 3-inch nominal size) |
| Length Range | 1m – 12m (Standard export lengths: 5.8m / 6m for container optimization) |
| Manufacturing Standards | ASTM A53, BS1387, GB/T3091, DIN 17175, BS EN1029, API 5L, etc. |
| Material Grades | Q195, Q235, Q345 (Gr.B), ST37, ST52, Grade B, 16Mn, etc. |
Key Advantages of Our 3″ Round Pipes
- Premium Corrosion Defense: Our uniform zinc coating layer (available in pre-galvanized or hot-dip galvanized) guarantees long-term rust protection, even when exposed to outdoor humidity or coastal elements.
- Superior Structural Rigidity: The 3-inch cross-section provides optimal torsional strength, preventing bending or warping under high physical stress.
- Smooth End Processing: We support professional custom end finishes including precise threading, custom beveling, and swaging to ensure quick and easy field installation.
Versatile Structural & Commercial Applications
Due to its versatile mid-to-large dimensions, our 3″ galvanized round steel pipe is highly demanded for:
- Heavy-duty agricultural greenhouse main frames and protective livestock corrals.
- Commercial industrial scaffolding systems, highway safety guardrails, and structural pillars.
- Low-pressure fluid pipelines, including HVAC venting, water distribution, and fire-sprinkler mainlines.
Direct Manufacturer Wholesale & Global Shipping
As an ISO-certified direct galvanized steel pipe manufacturer in Tianjin, China, TXN Metals utilizes 16 high-speed production lines to ensure steady lead times and competitive wholesale pricing. Every single batch is strictly tested and supplied with an authentic Mill Test Report (MTR).
Planning a large project? We provide free product samples so you can inspect our welding and zinc thickness firsthand. Contact our sales experts today to secure your factory-direct quote within 24 hours!
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Packing |
1. Marking: Size, standard,heat number as customer required |
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2. Surface: Oiled or Black painted to prevent rust |
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3. Inner Packing:Caps at both ends, steel strong trips on every bundle |
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4. Outer Packing:PE strip wrapping outside |
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5. We also can do as customers' requirements |
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Shipping |
1. Shipping by containers |
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2. Shipping by bulk ship |
| Q: Are you trading company or manufacturer ? |
| A: We are factory. |
| Q: How long is your delivery time? |
| A: Generally it is 7 days, it is according to quantity. |
| Q: Do you provide samples ? is it free or extra? |
| A: Yes, we could offer the sample for free charge but do not pay the cost of freight. |
| Q: What is your terms of payment? |
| A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment. |
| Q: Can we visit your factory? |
| A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case. |
| Q: Can provide OEM/ODM service? |
| A: Yes. Please feel free to contact us for more details discuss. |
If you have another question, pls feel free to contact us.
