We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 various branches. For much more particulars: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
1. Descriptions
| Identify | 304 high top quality stainless metal seamless pipes for automotive sector |
| Specification | ASTM A213, ASTM A269, ASTM A312, EN15716-5, GB/T14976-2012 |
| Steel Grade | SS304/SS304L, SS316/SS316L |
| Dimensions | OD:3-fifty.8mm, wall thickness: .5-4mm |
| Duration | 4m,6m or customized |
| Supply Circumstances | BA( EPT Annealed), Mechanical Polished, Electro-polished( EP) |
| Features | EPT Annealed for completed tube, large cleanness and high precision of within and outside surface, great mechanical qualities, superb chilly bending capability, large temperature resistant and anti-oxidation. We also provide sharpening and pipe chopping service |
| Applications | Utilized in automobile Mobile: +86~13 0571 88828,precision devices,hydraulic method, machinery,petroleum,chemical and fuel area. |
| Packing | Plastic film & Knitting Bundled, Plywood Scenario or as request |
| Shipping and delivery Time | thirty-60days after purchase confirmed |
two. Chemical Composition:
| Quality | C | Si | Mn | P | S | Cr | Ni |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤18.-twenty. | ≤8.-ten.5 |
| 304L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤18.-twenty. | ≤8.-ten.five |
| Grade | C | Si | Mn | P | S | Cr | Ni | other folks |
| SUS316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.~eighteen. | ten.~fourteen. | Mo:2~three |
| SUS316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | sixteen.~eighteen. | 12.~fifteen. | Mo:2~3 |
three. Mechanical Qualities&Hardness:
| Grade | YS(Mpa) | TS(Mpa) | EL(%) | Hv |
| 304 | ≥205 | ≥520 | ≥40 | ≤200 |
| 304L | ≥175 | ≥480 | ≥40 | ≤200 |
| Quality | YS(Mpa) | TS(Mpa) | EL(%) | Hv |
| SUS316 | ≥205 | ≥520 | ≥40 | ≤200 |
| SUS316L | ≥175 | ≥480 | ≥40 | ≤200 |
4. Production Movement Chart:
Important Processes Descriptions:
Chilly Rolling
Tube rolling employs compression to minimize the measurement of seamless tubes. It utilizes a single or two sets of rol EPT with
consistent cross-area grooves on the circumference of the tube. The rol EPT are driven by rack and pinion gears
of different radii alongside profiled cams, completing numerous 360º rotations around the tube
Tube rolling is a very exact approach of reducing quite thin walled and/or scaled-down diameter tubes, and is often
utilised as the closing cold working step. By rolling, we’re able to achieve outstanding handle more than dimensional tolerances
and surface end while also reducing substance reduction and bettering the metal’s microstructure.
Cold Drawing
Cold drawing reduces the diameter by pulling the tube by way of a die that is smaller sized than the tube. In order to fit
the tube into the die, one particular conclude is swaged thereby lowering the diameter of the foremost stop before drawing.
Subsequent, the narrowed finish is handed through the die and clamped to a drawing trolley which pul EPT the tube via the die.
Annealing
Annealing is used to soften the metallic ahead of more chilly functioning or fabrication processes, and increases the
overall metallurgical microstructure of the tube. In the course of tube reduction or cold drawing, it can grow to be difficult and
considerably brittle. To be able to draw the tube yet again, stresses fashioned for the duration of cold doing work need to have to be taken out to
return the materials to its regular state.
During annealing the tube is heated to a managed temperature and soak time. Through this method the tube
remains in shape, but the grains in the structure of the tube reform into a normal unstressed sample. The resulting
annealed tube is softer and ideal for redrawing
Straightening
Drawing and annealing generally results in some degree of bowing, making a slight bend in the tubing. In buy to
make the tubes straight, we use a number of roll mechanical straighteners to implement this procedure, Straightening can
introduce slight modifications to the dimension and mechanical homes of the tubing, so these facets are extremely meticulously controlled
in the course of the process.
five. Inspection and Checks
We inspect all lots of tubing before shipment to ensure that each and every element of the customer’s get has been met.
Our in-residence inspection and tests capabilities contain:
- Chemical Composition Test
- Visual inspection
- Dimensional inspection
- Floor roughness tests
- Eddy Recent screening
- Hydrostatic pressure testing
- Harmful mechanical screening:
– Yield Energy
– Tensile Toughness
– Elongation
– Hardness screening
– bending, flattening, and flaring
All shipments consist of a entire Te EPT Certificate exhibiting all necessary te EPT outcomes and verifying compliance with the order needs.
six.Packing & Shipments
7.Merchandise Measurement Selection:
| OD | Tolerance(mm) | Interior Surface Roughness | |||||
| Inch | mm | OD | WT | BA Tube | EPT Tube | ||
| 1 | ±0.05 | ±0.05 | ≤0.8μ | ||||
| 1 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |||
| three/eight | 1 | one.24 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| one/two | 1 | one.24 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| five/8 | one.24 | 1.sixty five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| three/4 | one.24 | one.sixty five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 1 | 1.24 | one.sixty five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 3 | .5 | ±0.05 | ±0.05 | ≤0.8μ | |||
| 4 | .seventy one | one | ±0.05 | ±0.05 | ≤0.8μ | ||
| five | 1 | ±0.05 | ±0.05 | ≤0.8μ | |||
| 6 | one | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| eight | one | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 10 | 1 | 1.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 12 | 1 | 1.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| fourteen | one | 1.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| fifteen | 1 | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| sixteen | one | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 18 | one | one.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| twenty | 1 | one.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
If you have special requirement about the tolerance of OD and WT, please verify with us.
8. Programs:
We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 various branches. For far more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of authentic products manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating merchandise use and compatibility. Our firm and the listed substitute parts contained herein are not sponsored, authorized, or created by the OEM.
