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HY-CDS
DOOHARVEST
730431
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High Quality Seamless Steel Pipe Seamless Tube Supplier
1) Production description:
Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes.
Seamless steel pipes are widely used.
General-purpose seamless steel pipes are rolled by ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.
2) Production Details
There are two main production processes for seamless steel pipes (cold rolling and hot rolling):
①Main production process of hot-rolled seamless steel pipe (△main inspection process):
Tube billet preparation and inspection△→tube billet heating→perforation→tube rolling→pipe reheating→fixed (reduced) diameter→heat treatment△→finished tube straightening→finishing→inspection△(non-destructive, physical and chemical, bench inspection)→in storage
②Main production process of cold-rolled seamless steel pipe:
Blank preparation → pickling and lubrication → cold rolling (drawing) → heat treatment → straightening → finishing → inspection → storage
Article Name | Cylinder ID mm | Length m | Straightness mm/m | Tolerance on ID | Tolerance on WT | Roughness |
Cold Drawn tube | 40-320 | ≤12m | 0.2-0.5 | / | ±5% | 0.8-1.6 |
Cold rolling tube | 30-100 | ≥12m |
| / | ±5% | 0.8-1.2 |
Cold drawn-honed tube | 40-500 | 8m | 0.2-0.3 | H8-H9 | ±5% | 0.2-0.8 |
Cold drawn-roll tube | 40-400 | 7m | 0.2-0.3 | H8-H9 | ±5% | ≤0.4m |
Deep-hole tube | 320-400 | 8m | 0.2-0.3 | H7-H9 | ±8% | ≤0.8 |
3) Our company and Advantages .
As the biggest seamless tube suppliers, we were established under modern management system and technologies in 2003. It covers an area of 40,000 sq. meters, plant cover 25,000 sq. meters and building area of 30,000 sq. meters. All processing control include cold-drawn, heat treatment, honing, peeling, grinding, polishing. There are 60sets of advanced equipment and 70+ skilled technical workers, annual output over 20,000tons.
4) Packing and Delivery
Why Choice Us
1.Professional, rich experience, reliable in seamless steel pipe, seamless ss, cds steel tube, also have finished honed tube and chrome rod, hydrulic pipe.
2.One-stop collection for honed tube, chrome rod, casting cylinder components.
3.Full range of size and material, ready stock goods with fast delivery
4.Customizable, non-standard sizes available seamless steel pipe.
5.Small quantity seamless tube supplier acceptable.
6.Refund or replace if any quality issue.
6) Contact us
Ms Carter
Whats app: +86 157 6249 1265
Email: carter@dhonedtube.com
High Quality Seamless Steel Pipe Seamless Tube Supplier
1) Production description:
Seamless steel pipes are perforated from whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes.
Seamless steel pipes are widely used.
General-purpose seamless steel pipes are rolled by ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.
2) Production Details
There are two main production processes for seamless steel pipes (cold rolling and hot rolling):
①Main production process of hot-rolled seamless steel pipe (△main inspection process):
Tube billet preparation and inspection△→tube billet heating→perforation→tube rolling→pipe reheating→fixed (reduced) diameter→heat treatment△→finished tube straightening→finishing→inspection△(non-destructive, physical and chemical, bench inspection)→in storage
②Main production process of cold-rolled seamless steel pipe:
Blank preparation → pickling and lubrication → cold rolling (drawing) → heat treatment → straightening → finishing → inspection → storage
Article Name | Cylinder ID mm | Length m | Straightness mm/m | Tolerance on ID | Tolerance on WT | Roughness |
Cold Drawn tube | 40-320 | ≤12m | 0.2-0.5 | / | ±5% | 0.8-1.6 |
Cold rolling tube | 30-100 | ≥12m |
| / | ±5% | 0.8-1.2 |
Cold drawn-honed tube | 40-500 | 8m | 0.2-0.3 | H8-H9 | ±5% | 0.2-0.8 |
Cold drawn-roll tube | 40-400 | 7m | 0.2-0.3 | H8-H9 | ±5% | ≤0.4m |
Deep-hole tube | 320-400 | 8m | 0.2-0.3 | H7-H9 | ±8% | ≤0.8 |
3) Our company and Advantages .
As the biggest seamless tube suppliers, we were established under modern management system and technologies in 2003. It covers an area of 40,000 sq. meters, plant cover 25,000 sq. meters and building area of 30,000 sq. meters. All processing control include cold-drawn, heat treatment, honing, peeling, grinding, polishing. There are 60sets of advanced equipment and 70+ skilled technical workers, annual output over 20,000tons.
4) Packing and Delivery
Why Choice Us
1.Professional, rich experience, reliable in seamless steel pipe, seamless ss, cds steel tube, also have finished honed tube and chrome rod, hydrulic pipe.
2.One-stop collection for honed tube, chrome rod, casting cylinder components.
3.Full range of size and material, ready stock goods with fast delivery
4.Customizable, non-standard sizes available seamless steel pipe.
5.Small quantity seamless tube supplier acceptable.
6.Refund or replace if any quality issue.
6) Contact us
Ms Carter
Whats app: +86 157 6249 1265
Email: carter@dhonedtube.com
