Precision Steel Pipe

Precision steel tube is a high-precision steel tube material processed by cold drawing or hot rolling. Because the inner and outer walls of precision steel pipes have no oxide layer, high pressure without leakage, high precision, high smoothness, cold bending without deformation, flaring, flattening without cracks, etc., they are mainly used to produce pneumatic or hydraulic components, such as cylinders or The oil cylinder can be a seamless tube or a welded tube.

Application

The internal and external diameter could control within +/- 0.01 mm. In the guarantee of anti-bending strength and torque strength same, the weight of precision pipe is lighter. It can be widely used in manufacturing precision machinery parts and engineering structure, and also commonly used to produce various kinds of conventional weapons, barrel, shells, bearing and so on.

Precision steel pipe size tolerances

For hot rolling precision steel pipe, tolerance of OD is +/- 0.1%.

For cold drawn precision pipe, tolerance allowed in below conditions:

Diameters 6mm to 10mm, normal tolerance condition +/- 0.2%, premium tolerance condition +/- 0.15%.

10mm to 30mm, normal tolerance condition +/- 0.4%, premium tolerance condition +/- 0.2%.

30mm to 50mm, normal tolerance condition +/- 0.45%, premium tolerance condition +/-0.3%.

For outer diameters above 50mm, normal tolerance condition +/- 0.1%, premium tolerance condition +/- 0.8%.

Specification& Standard

PRECISION CHREME-MOLYBDENUM STEEL TUBE

PRECISION ALLOY SEAMLESS STEEL TUBE

Process
Precision steel pipe manufacturing flow chart:

Raw Material Inspection - Remove Oxide Layer - Visual Inspection - Heating - Hot Rolling - Pickling and Passivation (Phosphating) - Grinding - Lubrication and Drying - Cold Rolling (Internal and external extraction) - Remove Oil - Ends Cutting - Inspection - Marking - Packing and Storage

As we know, most of precision steel pipe has cold drawn and hot rolled process. On the contrast, cold rolling will be more complicated. Not only the pipe need to be continuous rolled by three roller, but also the test have to be done after extrusion, so to guarantee the quality of the precision pipe materials.

Manufacturing methods of seamless precision pipe includes hot rolling and cold drawn. More over it could be manufactured in welding processes.

Precision steel pipe manufacturing flow chart:

Raw Material Inspection - Remove Oxide Layer - Visual Inspection - Heating - Hot Rolling - Pickling and Passivation (Phosphating) - Grinding - Lubrication and Drying - Cold Rolling (Internal and external extraction) - Remove Oil - Ends Cutting - Inspection - Marking - Packing and Storage

As we know, most of precision steel pipe has cold drawn and hot rolled process. On the contrast, cold rolling will be more complicated. Not only the pipe need to be continuous rolled by three roller, but also the test have to be done after extrusion, so to guarantee the quality of the precision pipe materials.

Manufacturing methods of seamless precision pipe includes hot rolling and cold drawn. More over it could be manufactured in welding processes.

Packing

Package of carbon steel seamless pipe

Plastic caps plugged at the two sides of pipe ends

Should be avoided by the steel strapping and transport damage

Bundled signs should be uniform and consistent

The same bundle(batch) of steel pipe should be came from the same furnace.

The steel pipe has the same furnace number, the same steel grade, the same specifications.

YIDA Steel Group

      Yida (Shandong) Iron and Steel Group Co., Ltd is a metal supplier with 3 warehouses covers more than 100,000 square meters factory in Shandong province China with over 25 years experience. specializing in steel manufacturing, processing, sales and tech-nical services. First-class steel production and processing equipment.Modern physical and chemical testing center and bending, cutting, surface treatment,stamping, punching, welding, and precision sheet metal processing platform.
      We are your one-stop shop for all steel needs.Our products are well- known with high-quality, competative prices and excellent after-sale services at, including stainless steel coil, sheet, plate, strip, pipe, bar/tube, beam, angle and carbon steel coil, sheet, plate, pipe, bar/tube, beam, angle and channel, copper coil/sheet/pipe. Hastelloy alloy, superalloy, nickel molybdenum alloy, inconel alloy, monel alloy, soft magnetic alloy and PPGI, PPGL and galvanized steel coil/sheet/plate/pipe and more. We have all the metal and steel you need, and we are steel experts.      
      Honesty,cooperation and win-win are important to us.We insisted on serve our customers with high quality products,sincere service and good reputation.We are appreciated for the long-term trust and favor from our customers.Hope we can cooperate sincerely and make progress together with our new and old customer.

Bundled package
On bundle of steel tube shall be the same in batch number, steel grade and specification.the rest of tubing less than one bundle should be tied into small bundles.
The weight of each bundle should be less than 50kg.The max weight cannot exceed 80kg of the bundle If there are special requirements.
When the length of the steel tube is greater than or equal to 6m, with at least 8 strapping bands for each bundle, divided into 3 groups and 3-2-3.
When the length of the steel tube is less than 6m, and each bundle is tied at least 5 knots and divided into 3 groups, which are 2-1-2.
When the length of the tube is greater than or equal to 3m, and each bundle is tied with at least 3 bands, divided into 3 groups, 1-1-1 showed below
 
Wooden box package
The wooden box is suitable for cold rolling or cold drawing seamless steel tube, polished hot rolled stainless steel tube.
When the outer diameter of steel pipe is greater than or equal 10mm, the maximum weight of the container should be 50kg.
When the outer diameter of steel pipe is less than or equal 10mm, the maximum weight of the container should be 30kg.

1.Q: What product you can provide?
A: We provide products such like stainless steel coil, sheet, plate,strip, pipe, bar/tube, beam, angle and Carbon Steel coil, sheet, plate, pipe, bar/tube, beam, angle and channel, copper Coil/sheet/pipe. Hastelloy alloy, superalloy, nickel molybdenum alloy, inconel alloy, monel alloy, soft magnetic alloy and PPGI, PPGL and galvanized steel coil/sheet/plate/pipe, etc.

2 .Q: How about the MOQ?
A: 50 pcs for steel sheet/plate and 2 tons for other steel products.

3.Q: What about the delivery time for bulk order?
A: Around 5 days for the regular products, customized need around 6 days. 7-15 days for special sizes and processing. Always based on the quantity.

4.Q: Do you supply free samples?
A: Yes, we would send small samples for free,

5.Q: What's your terms of payment ?
A: Payment less than 5000 USD, 100% in advance. Payment more than 5000 USD, 30% T/T in advance, balance before shippment.

6.Q: What about the quality control?
A:We are factory with 100% predelivery inspection which garantee the quality.

7.Q: How do you protect the steel sheet surface?
A: Each plate must have the second layer PVC laser film, one layer is 7cm thick, double lays are 14cm thick.

8.Q:Are you a trade company or manufacturer?
A:We are a company integrating industry and trade.

9. Q:How can I get a quotation from you ?
A:You can leave us message, and we will reply you at any time.