Seamless Steel Pipe

Precision Steel Pipe

Precision steel pipe is a kind of common seamless steel pipe (or reduced diameter welded steel pipe) through fine drawing or cold rolling processing after a high precision steel pipe material.

Product: seamless precision pipe, precision steel pipe, seamless precision tube

Application: used for mechanical structures,hydraulic equipment,automative parts

Size: od: 6mm-114mm; wt: 0.5mm - 60mm; length: 5.8/6/11.8/12m

Pipe Standard: EN 10305, ASTM A106-2006, BS 1139, DIN 2391, DIN 2445




Specification

Precision steel pipe is a kind of common seamless steel pipe (or reduced diameter welded steel pipe) through fine drawing or cold rolling processing after a high precision steel pipe material. Because the inner and outer walls of the precision bright tube have no oxide layer, no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, flattening and no cracks, it is mainly used to produce pneumatic or hydraulic components, such as cylinders or cylinders, which can be seamless tubes or welded tubes.


The chemical composition of precision bright tube is carbon C, silicon Si, Manganese Mn, sulfur S, phosphorus P, chromium Cr. High quality carbon steel, finished rolling, no oxidation bright heat treatment (NBK state), non-destructive testing, the inner wall of the steel pipe is SCrubbed by special equipment and washed by high pressure, the antirust oil on the steel pipe is used for antirust treatment, and the two ends of the cover is used for dustproof treatment. The inner and outer wall of the steel tube is of high precision, high finish, no oxide layer of the steel tube after heat treatment, high cleanliness of the inner wall, the steel tube is under high pressure, no deformation in cold bending, no cracks in flaring and flattening.


Application:

Automobile, mechanical parts, such as steel pipe precision, finish has high requirements of machinery. Precision steel pipe users are not only the users with high requirements for precision and finish, because the precision bright pipe is high, the tolerance can be maintained at 2-8 wire, so many mechanical processing users in order to save the loss of labor, material and time, the seamless steel pipe or round steel is slowly transformed into precision bright pipe.


Characteristics:

1. The outer diameter is smaller.

2. High precision can be used for small batch production.

3. Cold-drawn products have high precision and good surface quality.

4. The transverse area of steel tube is more complex.

5. Steel pipe has better performance and denser metal.

6. Cold-drawn products have high precision and good surface quality.

7. The transverse area of steel tube is more complex.

8. Steel pipe has better performance and denser metal.


Thickness

0.5mm - 60mm

Alloy Or Not

Non-Alloy

Section Shape

Round 10.3mm - 610mm

Tolerance

±5%

Place of Origin

China

Payment terms

L/C T/T (30%DEPOSIT)

Application

Used for Mechanical Structures,Hydraulic Equipment,Automative Parts,structure/fluid/boiler/water and gas etc

Packing

STANDARD PACKING

Technique

Cold Drawn

Inspection

Party Inspection

Surface Treatment

oiled/black painting,NBK(+N)   GBK(+A)   BK(+C)   BKW(+LC)   BKS(+SR)

Price term

CIF CFR FOB EX-WORK

Standard

EN 10305,,DIN 2391,DIN 2445  ASTM A106-2006, ASTM A53-2007, ANSI A210-1996, ASTM A179-1990, BS 1139, BS 6323, DIN 1626, DIN 1629/4, DIN 2391, DIN 17175, DIN2448 ,GB/T8162, Gb/t8163, JIS G3459-2004, JIS G3456-2004

Grade

STKM11A,STKM12B,STKM13A,10#, 20#, 45#, A53(A,B), A106(B,C), A179-C, ANSI4130 ,15Mo3, Q345, Q195, ST52, ST45, St37-2, ST35.4, ST35.8, ST54, 15crmo, 12Cr1MoV, API L80

Special Pipe

API Pipe

Type

Seamless Steel Pipe

Processing Service

Bending, Welding, Decoiling, Punching, Cutting

Product name

DIN2391 ST35 ST45 ST52 Cold Drawn High Precision Tube

Material

DIN2391 ST35 ST45 ST52

Keyword

DIN2391 ST35 ST45 ST52 Cold Drawn High Precision Tube

Surface

Cold finished


Outside Diameter (mm) /

Wall Thickness (mm)

SCH

10

SCH

20

SCH

30

STD

SCH

40

SCH

60

XS

SCH

80

SCH

100

SCH

120

SCH

140

SCH

160

457

6.35

7.92

11.13

9.53

14.27

19.05

12.70

23.88

29.36

34.93

39.67

45.24

508

6.35

9.53

12.70

9.53

15.09

20.62

12.70

26.19

32.54

38.10

44.45

50.01

559

6.35

9.53

12.70

9.53


22.23

12.70

28.58

34.93

41.28

47.63

53.98

610

6.35

9.53

14.27

9.53

17.48

24.61

12.70

30.96

38.39

46.02

52.37

59.54

660

7.92

12.70


9.53



12.70






711

7.92

12.70

15.88

9.53



12.70






762

7.92

12.70

15.88

9.53



12.70






Remark: The above standard and specification are just for reference, we can also produce customized product according to customer's request.

Process

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

  • OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

    OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

  • OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

    OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from,This behavior is in compliance with the user consent policy.