High Standard Cold drawn seamless aisi 4130 steel pipe

Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.

Hydraulic cylinder tube is a kind of after cold rolled processing of a kind of high precision steel tube. Precision seamless steel tube wall inside and outside are without oxidation layers, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc. It is mainly used to produce pneumatic or hydraulic components products.

The difference between precision steel pipe and Mild seamless pipe:

1. The seamless steel tube with obvious difference is that dimensional accuracy can be up to 0.1mm.

2. High precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.

3. The smaller outer diameter.

4. High precision to do small batch production surface quality

5. ISO9001:2015 verified supplier, quality is better.

YANTAI XINPENG STEEL PIPE offers an extensive range of seamless precision steel tubes. The seamless precision steel tubes can be used for a wide range of precision mechanical spare for car and cylinder accord to standard DIN2391/ EN10305-1/ GB/T3639-2009.

Processed: Cold drawn or cold rolled (Burnish or other requirements can be agreed)

Length: ≤10m  

Straightness:0.3~0.8mm/m

Wall Thickness tolerance: ±10% Inner

Roughness: 0.8~1.6μm

Dimensional Accuracy:

1. Tolerance on Inner Diameter: H8 H9 H10

2. Tolerance on Wall Thickness: (also can do customized)

Diameter: >40 +/-0.2mm

Diameter: 40 <100 +/-0.3mm

Diameter >100 +/-0.5mm

3. Surface Roughness: a=0.3~0.4micron

Length: Random length4.5-6m or as per order confirmation

Mill Test Certification: En10204/3.1B

4. Delivery condition: BKS BK NBK GBK

MECHANICAL PROPERTIES (we do much better than this)

Our Team

Our Certificate

1. How many employees in your company?   More than50 people..

2 Could you produce the cylinder according to our request?

Yes, we could design the cylinder according to your request or your drawing.

3 What's your main export market?

Middle East, Africa, Southeast Asia, European and South America

4. What’s your leading time?

 About 10days to 25days after payment

5. What is your MOQ?  

3-5tons start on each specification.

6. Can you sent samples?

Yes we can, the freight need to stand by customer.

Any need or request, please feel free to contact us!

1. 24hours service via phone ,wechat alibaba trademanager. 

2. Good package and best container method.

3. Professional explanation with professional online service

4. Factory manufacturer can assure the best quality. 

5. Good delivery time as 30-45 days , if stock items, less than 30days.

6. 1 year product assurance after usuage.

7. Good quality process in our own factory, each lot tube have their own 5 years'life card.

we always do our best to make deal with any clients, 

welcome to inquiry at any time.