En10305-1 E355 E420 stress relieve precision honed pipe china

Specifications

1 ID30-250mm W.T.2-30mm
2.Straightness: 0.5 /1000
3.Tolerance:ISO H9 H8
En10305-1 E355 E420 stress relieve precision honed

Product name : En10305-1 E355 E420  stress relieve precision honed pipe china

1.Straightness: 0.5 /1000
2.Tolerance INT: ISO H9 H8 H7

Specification of cold tube:

Inside diameter	40-250mm
Max length	14m
Straightness	0.5 /1000
Tolerance INT	ISO H9 H8 H7
Type	cold drawing
Tubes are provided according to the norm EN10305-1

 CHEMICAL COMPOSITION (%)

Si(Max)	Mn(Max)	C(Max)	P (Max.)	S(Max)
0.50	1.6	0.22	0.025	0.025

 

MECHANICAL PROPERTIES

Tensile strength Min	Yield Point Min	Elongation % Min
580N/mm2	420N/mm2	15

 

EXCENTRICITY

Outer Diameter	Excentricity
< =125 mm	5 %
> 125 mm	7 %

measured according to the formula:

E = (max Wt – min Wt)/( max Wt + min Wt) x 100 %

 

BORE OVALITY

The bore ovality is comprised in the 50 % of the inside diameter tolerances. ready to honed tube

Marking: , ID, OD

Length: unfixed length or fixed length

Package: banding with steel strips, braiding parcel at outside

Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.

Impact test: -20°C, 27 J (only for special requirement)

 Process

• Pretreatment :  Acid cleaning- Parkerizing

 

• Cold drawn/cold rolled

• Annealing furnace—— stress-relieving (+SR)

 

• Straightener—— Straightening/ Leveling

•  Straightness inspecting

• Dimension inspecting

  

• Sawing off not good parts

 

• Lathe

• Surface Polishing

 Finished honed tube

 

Application: Hydraulic cylinder tube

 

Any need, please feel free to contact us!

ISO 9001 2008 Verified High standard

 

Company Information:

 

Yantai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China. Since 2002 Cold drawn machine set importing, Xinpeng become a big precision steel pipe manufacture with 500Mt month productivity in the next 12 years.

 

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

 

1. Hydraulic Cylinder Tube------Main products of Xinpeng,

 

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

 

1. SRB tube ----- used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
2. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.

 

Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.

 

Product Introduction: 

 

hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precision steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe 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, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C, Si, Mn, S, P, Cr.

 

The difference between precision steel pipe and 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.

 

Features:

 

hydraulic cylinder tube st52 din2391  inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing

 

1. The smaller outer diameter

 

2. High precision to do small batch production

 

3. Cold drawn finished products of high precision, good surface quality

 

4. The steel pipe transverse area is more complex

 

5. Steel pipe is superior performance, dense metal