St52 S355jr Forging Steel Hollow Round Bar

St52 S355jr Forging Steel Hollow Round Bar

​Hollow round bars are known as chrome plate tubes, they are made of cold drawn seamless tubes or hollowed bars, by grinding and precision polishing on the outside diameter and then chrome plated to a certain thickness on the OD. So they also called chrome plated OD tube.

Product Introduction

We have a highly professional technical team and after-sales service team, which can provide customers with more complete and complete Solid Hard Chrome Plated Rod, Cold Drawn Seamless Cylinder Tubes, Hard Chrome Plated Rods solutions. As we bear in our mind that innovation is essential to our growth, new product development is constantly. Based on the principle of establishing long-term cooperation with customers, we firmly believe that quality and service are the life of an enterprise. To get the stage of realizing dreams of our employees!

Hollow round bars are known as chrome plate tubes, they are made of cold drawn seamless tubes or hollowed bars, by grinding and precision polishing on the outside diameter and then chrome plated to a certain thickness on the OD. So they also called chrome plated OD tube.


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ExternalDiameter Tolerance:Our chrome plated bars are supplied with tolerancef7, f8, f9on customers’ request.
Hard Chrome Plated Thickness:Min. 20Microns (0.0008″), other chrome plated thickness of hydraulic cylinder rod is on customers’ requests. The chrome plated round bar should pass the salt spray tested at least 48 hours.
Supply Length:Our factory produce chrome plated rod with random length or fixed length up to 16 meters.


Production process

1. Inspection of raw material

2. Acid pickling and cold drawing of tubes

3. Rough and fine turning of outer diameter

4. Grinding

5. Polishing

6. Chrome plating

7. Polishing

8. Inspection and packaging


Our Advantages

a. Extensive production experience: We are specialized in cylinder, piston rod and cylinder tubes with an experience of more than 15 years.

b. Complete production facilities: We have precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.

c. High quality raw material: We mainly choose raw material from big steel factory, such as TPCO, BAO STEEL, YE STEEL and those which are best and largest raw material manufacturer in China.

d. Strict Physical/Chemical testing procedures: Meeting the requirements of the product design and process, providing reliable testing data.

e. Short Delivery time: 50 days for one container, if our stock can meet your requirements, we can deliver within ten days.

f. Safe packing: Anti-rusty oil is painted on the surface of tubes before packing, plastic caps on two ends to protect inside surface. Finally be packed with seaworthy package or in wooden case.

g. Quick reply: We will give you response within 12 hours.


FAQ

1. Q: Are you a manufacturer, trading company or a third party?

A: We are a manufacturer, and we have builded up our company since 2006.

2. Q: How can I get to your factory?

A: Our factory is not far away from Shanghai Airport, we can pick you up in the airport if you need.

3. Q: What payment terms do youaccept?

A: T/Tin advance.

4. Q: What is the delivery time?

A: In general, we delivery about 40 days for one container. If our stock meets your requirements, we can delivery within ten days. However, the lead time will vary based on different requirements and materials.

5. Q: Can your products be customized?

A: Yes, if you require special sizes or requirements we don’t have, we can find raw material for you, but the lead time will be longer.

6. Q: How long is the production cycle?

A: Usually 30-50 days.


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Our customers have a wider range of processing choices for transportation mode.


By Express (FedEx,UPS,DHL,TNT,EMS,etc...)

---Advantage:Fast (takesabout7-10 day sin the delivery),door to door.

---Disadvantage:Alittleexpensive.


By Air Transportation

---Advantage:Fast (takes about 8-12 days),a little cheaper than Express.

---Disadvantage:You need to take the goods from the airport by yourself.


By Sea (Ocean) Transportation

---Advantage:Much cheaper than Expressor Air transportation.

--- Disadvantage:Slow and you need to take the goods from your destination port by yourself.

We thinks what customers think, the urgency of urgency to act during the interests of a purchaser position of theory, allowing for much better good quality, lower processing costs, prices are extra reasonable, won the new and old buyers the support and affirmation for St52 S355jr Forging Steel Hollow Round Bar. Through the implementation of a quality management system and lean production management, we continuously improve production efficiency while ensuring product quality. We are here expecting friends all over the world!

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