Premium Quality ASTM A106 A500 St37-2 Hollow Section Square Rectangular Pipe Shs Rhs Gi Black Carbon Square Steel Tube

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Product Description

📋 Overview - Basic Info.
Type
Welded
Technique
Hot Rolled
Material
Carbon Steel
Surface Treatment
Black
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration
Section Shape
Square
Product Name
Square/Rectangular Pipe
Technology
Hot Rolled/Cold Rolled/ERW
Grade
Q195/Q215/Q235/Q345/#20/#45
Alloy or Not
Non-Alloy
Surface
Black Painted
Thickness
0.5-20mm
Size
10*10-600*600mm
Length
3-12m
Sample
Free
Delivery Time
5-15 Days
Application
Construction Structure
Production Capacity
30000tons Per Month
⚙️ Product Specification
Specification Image
Material Grade Q195, Q215 A/B, Q235 A/B/C/D, Q275, Q345, Q390, SS400, A36, GR.36, 50(245), S235JR, S355JO, 10#, 20#
Standard GB, JIS, ASTM, BS, DIN
Wall Thickness 0.13-60mm or as required
Outer Diameter Round: 10-406.4mm; Square: 10*10-500*500mm; Rectangular: 10*20-400*600mm
Length 5.8M; 6M; 6.4M; 12M
Surface Oiled, Polished, Brightness, Metallic color, Black paint, Galvanized
Trade Terms EXW, FOB, CIF, CFR
Customization Support: We support product customization. Please tell us your requirements for a prompt quotation.
Production Detail
🖼️ Product Display
🏗️ Product Application

Q195: Small load parts, iron wires, rings, pull rods, stampings, and weldments.

Q215A: Pull rods, rings, gaskets, and carburized parts.

Q235: Metal structural parts, connecting rods, hooks, bolts, nuts, and important welded members.

Q275: High-strength parts such as shafts, sprockets, gears, and hooks.

Application Scenarios
📦 Packaging & Shipping
Packaging
Seaworthy Package: Water-proof Paper + Edge protection + Wooden Pallets.
20ft Container: Max 25 Ton, Max length 5.8m.
40ft Container: Max 25 Ton, Max length 11.8m.
📜 Certifications
Certification
FAQ
Can you send samples?
Of course, we can provide customers with free samples and express shipping service to all over of the world.
What product information do I need to provide?
Please kindly provide the grade, width, thickness, surface treatment requirement, and quantities you need to purchase.
How long does your delivery time take?
In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
How many countries have you already exported to?
We have exported to America, Canada, Brazil, Russia, Thailand, India, and various African countries. Our export experience is rich and we are familiar with different market demands.
Does the product have quality inspection before loading?
All our products are strictly tested for quality before packaging. Customers can also appoint third parties to inspect the products before loading.
Can I visit your factory?
Of course, we welcome customers from all over the world to visit our manufacturing facilities.
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