Cold-Rolled Black Annealed Square And Rectangular Steel Tube
Name：Black Iron Cold Rolled Annealed Steel Tube
Surface：Black
Section shape：Square
OD：12*12-400*400mm
WT：0.8-12mm
Length：1-12m or as customer require
Material：Q195 Q215 Q235
Description
Product Specification
|
Place of Origin |
China |
|
Brand |
Yuantai Derun Steel Pipe Manufacturing Group |
|
Model |
Cold Rolled Hollow Section |
|
Thickness |
0.5 - 3 mm |
|
OD(outer diameter) |
12*12-400*400mm |
|
Supply capacity |
Annual output of 5 million tons |
|
Certification |
CE,LEED,BV,PHD&EPD,BC1,EN10210,EN10219,ISO9000,AST |
|
Surface Treatment |
black |
|
Tolerance |
as required |
|
Brand |
YUANTAI DERUN |
|
Length |
3-12M according to client requirement |
|
Standards |
Hollow section: ASTM A500/A501,EN10219,EN10210, JI |
|
Materials |
Gr.A,Gr.B,Gr.C,S275J0H,S355JR,S355J0H,S355J2H,A36, |
|
Delivery Time |
7-30 Days |
|
Port |
Tianjin port |
Strict Product Inspection
Introduction
1. High Dimensional Accuracy and Precise Shape
Our cold-rolled black annealed square and rectangular steel pipes boast excellent dimensional accuracy and a precise shape. This makes them ideal for applications where tight tolerances are essential, ensuring a perfect fit and seamless performance.
2. Improved Mechanical Properties through Annealing
The annealing process significantly enhances the mechanical properties of these pipes. It increases the strength and ductility of the steel, enabling them to withstand heavy loads and demanding conditions with ease.
3. Smooth Surface Finish
These pipes offer a smooth surface finish, which not only adds to their aesthetic appeal but also reduces the likelihood of surface defects. This ensures a superior quality product that meets the highest standards.
4. Good Weldability and Anti-Corrosion Feature
They have excellent weldability, facilitating fabrication and assembly processes. Moreover, the black finish provides a certain degree of protection against corrosion and oxidation, prolonging their service life and reliability.
In conclusion, our cold-rolled black annealed square and rectangular steel pipes are a top choice for various industries, offering a combination of quality, performance, and durability.
FAQ
Q1: What are the main advantages of Cold Rolled Black Annealed Hollow Sections?
A: They offer high dimensional accuracy (12X12 to 400X400 mm), improved ductility through annealing, a smooth surface finish, and excellent weldability for precise structural engineering.
Q2: What steel standards and material grades do these hollow sections support?
A: Our cold-rolled sections comply with EN 10219, EN 10210, and ASTM A500/A501. Available material grades include ASTM Gr.A/B/C, A36, and European grades S275J0H, S355JR, S355J0H, and S355J2H.
Q3: What are the size specifications, length, and delivery options?
A: We produce outer dimensions from 12X12 mm up to 400X40 mm with wall thickness of 0.5–3 mm. Custom lengths of 3–12M can be ordered, with delivery within 7–30 days from Tianjin Port.
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