Product Overview
Our 2 inch square pipe (nominal size: 2" x 2", equivalent to 50.8mm x 50.8mm) is a versatile, high-strength structural component designed for durability and performance across diverse applications.
Crafted with precision and strict quality control, this square pipe balances robustness, corrosion resistance, and ease of installation, making it an ideal choice for both commercial, industrial, and residential projects.
Whether used for load-bearing structures, framing, or decorative purposes, our 2 inch square pipe delivers consistent reliability and meets international industry standards, ensuring long-term service life even in harsh environments.
| Grade | Q195 Q215 Q235 Q345 Q355 etc. | |||
| Standard | ASTM, GB, BS, EN, DIN | |||
| Tolerance | ±5% | |||
| Surface Treatment | balck or galvanized | |||
| Size | 30*30mm-200*200mm, can be customized | |||
| Length | 1-12m, can be customized | |||
| Thickness | 1.5mm-12mm, can be customized | |||
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling | |||
| Application | Indoor Structural/Architectural Applications,etc | |||
Material Composition
We offer 2 inch square pipes in multiple material options to suit different application requirements, with detailed compositions as follows:
Carbon Steel (Most Common)
| Material |
Carbon (C) |
Manganese (Mn) |
Phosphorus (P) |
Sulfur (S) |
Iron (Fe) |
|
Carbon Steel |
0.17% - 0.23% |
0.35% - 0.65% |
≤ 0.040% |
≤ 0.040% |
Balance |
Galvanized Carbon Steel
Base Material: Same as carbon steel above
Zinc Coating: Hot-dip galvanized (Zn coating thickness: 80-120μm) or electro-galvanized (Zn coating thickness: 10-30μm)
Note: Enhanced corrosion resistance, ideal for outdoor and humid environments.
Manufacturing Process
Our 2 inch square pipes adopt advanced manufacturing processes to ensure quality. Core steps (200 words approx.):
1. Raw Material & Prep
Select high-quality steel coils/sheets, test their chemical and mechanical properties. Uncoil and level to ensure flatness for subsequent processing.
2. Forming & Welding
Form 2"x2" square shape via cold/roll forming. Welded pipes use HFW/TIG/MIG; seamless ones adopt hot rolling/cold drawing for better pressure
resistance.
3. Finishing & Inspection
Cut to standard/custom lengths, ensure precise dimensions. Surface treatments include galvanizing, painting, or polishing. Final inspection covers dimensions, surface, welds and mechanical properties to meet international standards.
Mechanical Properties
The mechanical properties of our 2 inch square pipe vary slightly by material, but all meet or exceed industry standards (ASTM A500, EN 10219, GB/T 3091, etc.). Below are the typical mechanical properties for common materials:
|
Material Type |
Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation (%) |
Hardness (HB) |
|---|---|---|---|---|
|
Carbon Steel (A500 Grade B) |
≥ 290 |
415 - 585 |
≥ 23 |
120 - 150 |
|
Hot-Dip Galvanized Carbon Steel |
≥ 290 |
415 - 585 |
≥ 22 |
120 - 155 |
Application Fields
Our 2 inch square pipe is widely used in various industries due to its versatility, strength, and adaptability. Key application fields include:
Construction & Building
Building frames, columns, handrails, scaffolding and decorative trim for commercial/residential projects.
Industrial & Manufacturing
Conveyor systems, machine frames, pipeline supports, storage racks and auto/aerospace components.
Infrastructure & Municipal Engineering
Street lamp poles, fencing, drainage and irrigation systems for municipal infrastructure.
Agriculture & Rural Applications
Greenhouse frames, farm sheds, irrigation supports and agricultural machinery frames.
Why you choose us
We supply 2-inch square pipes with full certifications ASTM A500, EN 10219, GB/T 3091, etc.
and large production capacity to fulfill bulk and urgent orders.
01/
Precise & Easy To Install
Standard 2"×2" dimensions for fast, stable assembly.
02/
High Structural Strength
Ideal for load-bearing and structural applications.
03/
Superior Corrosion Resistance
Multiple surface treatments for long service life.
04/
Easy To Fabricate
Simple to weld, cut and bend for flexible usage.
05/
Factory Direct & Cost-Effective
Competitive pricing with consistent, reliable quality.
06/
Stable Bulk Supply
Large production capacity ensures on-time delivery.
Customization Services
Custom Length: Cut to any length (standard lengths: 6m, 12m; custom lengths available).
Thickness Customization: Different wall thicknesses (1.5mm - 10mm) to match different load requirements.
Surface Treatment: Custom coatings (color, type) and polishing degrees.
Material Customization: Special materials according to your application scenario.
Outdoor furniture, garden structures and indoor/outdoor decorative artworks.
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