High-Quality ASTM A36 A500 Black Square Steel Tube for Construction and Structural

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Product Description

Overview & Basic Information
Model NO.
0.7-200mm
Technique
Hot Rolled
Material
Carbon Steel
Surface Treatment
Galvanized
Section Shape
Equilateral Angle Bar
Grade
Q195-Q420 Series
Length
6m-12m
Thickness
3mm~35mm
Certificate
ISO, SGS, CE, CQC
Production Capacity
50000 Ton/ Month
Product Description
High-Quality Black Square Steel Tube
Steel Tube Structural
Technical Specifications
Product NameGalvanized Steel Pipe
ShapeSquare, Rectangle
StandardASTM A53, EN 10255, BS 1387, GB/T 3091
GradeQ235, Q345B, Q345C, Q345D, Q355E
CategoryHot-dip galvanizing, electro-galvanizing
Zinc Layer20-275g/㎡
Tensile Strength400-550MPa
FeaturesStronger protection and corrosion resistance
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Specification Comparison: Detailed dimensions for square and rectangle steel tubes are provided below to meet various construction requirements.
Square Tube Rectangle Tube
Spec (mm)Thickness (mm) Spec (mm)Thickness (mm)
16×160.4-1.510×200.6-1.5
40×401.0-4.540×801.5-5.0
120×1204.0-8.0120×802.5-10.0
250×2506.0-14.0200×1504-12.0
800×80010.0-50.01000×80010-28.0
Product Display
Display 1
Display 2
Product Application
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Wide Usage: Ideal for curtain walls, construction projects, machinery manufacturing, shipbuilding, and steel structure engineering.
Application 1
Application 2
Packaging & Shipping
Packaging and Logistics
About Us
Factory Image

We are a large privately operated steel manufacture founded in 2021. Our facility is located in a major economic development zone, serving as a leading hub for black and white iron manufacture. With excellent transportation links near major railways and national highways, we are conveniently positioned within 200 km of major international ports and airports, ensuring efficient global logistics.

Frequently Asked Questions
Q1: What services can we provide?
A: We are an iron and steel enterprise integrating industry and trade. With over ten years of experience, we provide a wide variety of high-quality steel products to international clients.
Q2: What are your accepted payment terms?
A: Our usual payment methods include T/T, L/C, D/A, D/P, Western Union, and MoneyGram. Terms can be negotiated and customized based on customer requirements.
Q3: Is it possible to visit your factory?
A: You are warmly welcome to visit. Once you provide your schedule, we will arrange a professional sales team to host you and follow up on your project.
Q4: Do you provide samples?
A: Yes, we provide samples for regular sizes free of charge. However, the buyer is responsible for the freight costs.
Q5: How can I receive a formal quotation?
A: You can leave a message through our online platform or contact us via trade management tools. We respond to all inquiries promptly.
Q6: What certifications do your products hold?
A: Our products are certified by ISO, SGS, CE, and CQC, and we welcome third-party inspections to ensure quality compliance.

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