We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 diverse branches. For much more specifics: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
one.Descriptions
| Name | DIN EPT Collection Higher Precision and BA Seamless Steel Tube |
| Specification | DIN2391-94/C, EN10305-1, EN10305-4, SAE J524, GB/T3639-2009 |
| Steel Quality | St35, St37.4, St45, St52.4, E235, E255, E355 |
| Measurement | OD:3-76mm, wall thickness: .5-6mm |
| Size | 4m,6m or custom-made |
| Shipping and delivery Conditions | NBK(+N), BK(+C), GBK(+A), BKW(+LC), BKS(+SR) |
| Features | large cleanness within wall, No deformation following chilly bending, no crack soon after flaring and flattening, difficult geometrical forming and machining can be recognized |
| Applications | Utilised in hydraulic program, car Cell: +86~thirteen 0571 88828 and in the celebration where the substantial precision, brightness, cleanness and mechanical properties of the tube are essential |
| Packing | Plastic film & Knitting Bundled, Plywood Scenario or as ask for |
| Shipping Time | twenty-30days following buy confirmed |
2. Chemical Composition (ca EPT examination
| Steel Gr. | Steel No. | Chemical Compositions(%by mass) | |||||
| C(max) | Si(max) | Mn | P(max) | S(max) | Al(min)Complete | ||
| St35, St37.4(E235) | one.0305 | .17 | .35 | ≥0.forty | .571 | .571 | .015 |
| St45(E255) | 1.0408 | .21 | .35 | ≥0.forty | .571 | .571 | .015 |
| St52, St52.4(E355) | one.0508 | .22 | .55 | ≤1.sixty | .571 | .571 | .571 |
3. Mechanical Qualities (at place 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 | 6 | 420 | 10 | 420 | 315 | fourteen | 315 | 25 | 340-470 | 235 | twenty five |
| St45(E255) | one.0408 | 580 | five | 520 | eight | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| St52(E355) | one.0508 | 640 | 4 | 580 | seven | 580 | 420 | ten | 490 | 22 | 490-630 | 355 | 22 |
four. Manufacturing Movement Chart
Crucial Methods Descriptions:
Cold Rolling
Tube rolling employs compression to decrease the dimensions of seamless tubes. It makes use of one particular or two sets of rol EPT with continual
cross-segment grooves on the circumference of the tube. The rol EPT are pushed by rack and pinion gears of various
radii alongside profiled cams, finishing several 360º rotations around the tube
Tube rolling is a very specific approach of reducing quite slender walled and/or smaller sized diameter tubes, and is often utilised
as the closing chilly operating action. By rolling, we are able to attain extraordinary manage more than dimensional tolerances
and surface area end even though also reducing substance reduction and strengthening the metal’s microstructure.
Chilly Drawing
Chilly drawing minimizes the diameter by pulling the tube through a die that is more compact than the tube. In order to in shape the tube
into the die, a single stop is swaged therefore lowering the diameter of the leading finish ahead of drawing. Next, the narrowed
stop is passed by way of the die and clamped to a drawing trolley which pul EPT the tube by way of the die.
Annealing
Annealing is utilised to soften the metal prior to additional cold doing work or fabrication procedures, and enhances the overall
metallurgical microstructure of the tube. Throughout tube reduction or cold drawing, it can turn into challenging and relatively brittle.
To be in a position to draw the tube again, stresses fashioned throughout chilly working need to be removed to return the substance to its
typical state.
Throughout annealing the tube is heated to a controlled temperature and soak time. By means of this approach the tube continues to be in
shape, but the grains in the composition of the tube reform into a normal unstressed pattern. The ensuing annealed tube is
softer and suited for redrawing
Straightening
Drawing and annealing generally results in some diploma of bowing, producing a slight bend in the tubing. In order to
make the tubes straight, we use multiple roll mechanical straighteners to put into action this treatment, Straightening can
introduce slight alterations to the size and mechanical properties of the tubing, so these factors are quite very carefully
managed in the course of the procedure.
5. Inspection and Tests
We examine all tons of tubing before shipment to make sure that every single factor of the customer’s purchase has been satisfied.
Our in-property inspection and exams abilities consist of:
- Chemical Composition Test
- Visible inspection
- Dimensional inspection
- Surface area roughness screening
- Eddy Existing screening
- Hydrostatic strain testing
- Damaging mechanical testing:
– Yield Energy
– Tensile Power
– Elongation
– Hardness screening
– bending, flattening, and flaring
All shipments include a complete Te EPT Certification exhibiting all required te EPT benefits and verifying compliance with the get specifications.
6. Packing and Shipments
7. Applications
We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 distinct branches. For much more particulars: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of original gear manufacturer’s (OEM) part quantities or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed substitute elements contained herein are not sponsored, accredited, or created by the OEM.
