Manufacturer  Cost  made in China - replacement parts -  in Leipzig Germany  of Seamless Precision Tube St35 Nbk Black Phosphating Tube in China with top quality

We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 diverse branches. For much more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

1.Descriptions

Identify Producer of St35 NBK Black Phosphating Tube in China
Specification DIN2391-94/C, EN10305-1, EN10305-4, SAE J524, GB/T3639-2009
Metal Quality St35, St37.4, St45, St52.4, E235, E255, E355
Dimensions OD:3-76mm, wall thickness: .5-6mm
Size 4m,6m or tailored
Shipping Circumstances NBK(+N), BK(+C), GBK(+A), BKW(+LC), BKS(+SR)
Features substantial cleanness inside of wall, No deformation after chilly bending, no crack after flaring and flattening, challenging geometrical forming and machining can be recognized
Purposes Utilised in hydraulic system, vehicle Cellular: +86~thirteen 0571 88828 and in the occasion exactly where the substantial precision, brightness, cleanness and mechanical homes of the tube are necessary
Packing Plastic film & Knitting Bundled, Plywood Circumstance or as request
Shipping Time twenty-30days following purchase verified

2. Chemical Composition (ca EPT analysis

Steel Gr. Steel No. Chemical Compositions(%by mass)
C(max) Si(max) Mn P(max) S(max) Al(min)Overall
St35, St37.4(E235) one.0305 .17 .35 ≥0.40 .571 .571 .015
St45(E255) one.0408 .21 .35 ≥0.40 .571 .571 .015
St52, St52.4(E355) one.0508 .22 .fifty five ≤1.60 .571 .571 .571

three. Mechanical Homes (at room temperature)

Steel Gr. Steel
No.
BK BKW BKS GBK NBK
Rm
MPa
A
%
Rm
MPa
A
%
Rm
MPa
ReH
MPa
A
%
Rm
MPa
A
%
Rm
MPa
ReH
MPa
A
%
Min Min Min Min Min Min Min Min Min   Min Min
St35(E235) one.0305 480 six 420 10 420 315 fourteen 315 twenty five 340-470 235 25
St45(E255) one.0408 580 5 520 eight 520 375 twelve 390 21 440-570 255 21
St52(E355) one.0508 640 four 580 7 580 420 ten 490 22 490-630 355 22

4. Generation Stream Chart

Crucial Processes Descriptions:
Chilly Rolling
Tube rolling utilizes compression to decrease the measurement of seamless tubes. It makes use of one or two sets of rol EPT with consistent
cross-segment grooves on the circumference of the tube. The rol EPT are driven by rack and pinion gears of distinct
radii alongside profiled cams, completing a number of 360º rotations all around the tube
Tube rolling is a very precise approach of lowering really slim walled and/or scaled-down diameter tubes, and is usually employed
as the closing chilly operating action. By rolling, we’re capable to accomplish outstanding manage over dimensional tolerances
and area end while also minimizing materials decline and improving the metal’s microstructure.

Cold Drawing
Cold drawing lowers the diameter by pulling the tube by means of a die that is more compact than the tube. In order to suit the tube
into the die, a single end is swaged thereby minimizing the diameter of the major stop just before drawing. Next, the narrowed
stop is handed through the die and clamped to a drawing trolley which pul EPT the tube by way of the die.

Annealing
Annealing is employed to soften the metallic prior to further cold doing work or fabrication processes, and increases the general
metallurgical microstructure of the tube. In the course of tube reduction or chilly drawing, it can turn out to be tough and relatively brittle.
To be in a position to attract the tube once more, stresses shaped in the course of cold working want to be taken out to return the content to its
standard point out.
In the course of annealing the tube is heated to a managed temperature and soak time. Via this process the tube remains in
form, but the grains in the construction of the tube reform into a typical unstressed pattern. The resulting annealed tube is
softer and ideal for redrawing

Straightening
Drawing and annealing typically outcomes in some degree of bowing, generating a slight bend in the tubing. In purchase to
make the tubes straight, we use a number of roll mechanical straighteners to put into action this method, Straightening can
introduce slight adjustments to the dimension and mechanical homes of the tubing, so these facets are really meticulously
managed for the duration of the process.

five. Inspection and Checks
We inspect all lots of tubing just before shipment to make certain that every aspect of the customer’s get has been achieved.
Our in-house inspection and tests abilities incorporate:

  • Chemical Composition Examination
  • Visible inspection
  • Dimensional inspection
  • Surface area roughness screening
  • Eddy Current testing
  • Hydrostatic force screening
  • Destructive mechanical screening:

– Yield Strength
– Tensile Toughness
– Elongation
– Hardness screening
– bending, flattening, and flaring
All shipments include a full Te EPT Certification displaying all essential te EPT results and verifying compliance with the get needs.

six. Packing and Shipments

7. Programs

 

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 distinct branches. For far more particulars: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of authentic gear manufacturer’s (OEM) element numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating item use and compatibility. Our business and the shown replacement components contained herein are not sponsored, accepted, or produced by the OEM.

Manufacturer  Cost  made in China - replacement parts -  in Leipzig Germany  of Seamless Precision Tube St35 Nbk Black Phosphating Tube in China with top quality

Manufacturer  Cost  made in China - replacement parts -  in Leipzig Germany  of Seamless Precision Tube St35 Nbk Black Phosphating Tube in China with top quality

Manufacturer  Cost  made in China - replacement parts -  in Leipzig Germany  of Seamless Precision Tube St35 Nbk Black Phosphating Tube in China with top quality