We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 distinct branches. For a lot more particulars: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
one. Descriptions
| Identify | ERW/Welded/seamless/chilly drawn Stainless Pipe Provider -HangZhou renaissance |
| Specification | ASTM A213, ASTM A269, ASTM A312, EN15716-5, GB/T14976-2012 |
| Steel Quality | SS304/SS304L, SS316/SS316L |
| Dimension | OD:3-50.8mm, wall thickness: .5-4mm |
| Length | 4m,6m or personalized |
| Shipping and delivery Circumstances | BA( EPT Annealed), Mechanical Polished, Electro-polished( EP) |
| Functions | EPT Annealed for concluded tube, high cleanness and high precision of inside of and outside the house floor, great mechanical homes, excellent cold bending capability, higher temperature resistant and anti-oxidation. We also provide polishing and pipe reducing service |
| Programs | Utilised in vehicle Cell: +86~thirteen 0571 88828,precision devices,hydraulic system, equipment,petroleum,chemical and gas subject. |
| Packing | Plastic movie & Knitting Bundled, Plywood Circumstance or as ask for |
| Shipping Time | thirty-60days after get verified |
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.-20. | ≤8.-ten.5 |
| Grade | C | Si | Mn | P | S | Cr | Ni | other folks |
| SUS316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | sixteen.~eighteen. | ten.~fourteen. | Mo:2~3 |
| SUS316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.~18. | 12.~fifteen. | Mo:2~3 |
3. Mechanical Properties&Hardness:
| Quality | 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 |
four. Production Flow Chart:
Key Methods Descriptions:
Cold Rolling
Tube rolling uses compression to reduce the size of seamless tubes. It makes use of 1 or two sets of rol EPT with
continual cross-section grooves on the circumference of the tube. The rol EPT are pushed by rack and pinion gears
of different radii along profiled cams, finishing multiple 360º rotations close to the tube
Tube rolling is a quite exact strategy of lowering very thin walled and/or smaller sized diameter tubes, and is frequently
utilised as the ultimate chilly working step. By rolling, we’re able to achieve outstanding handle in excess of dimensional tolerances
and surface end while also minimizing materials decline and enhancing the metal’s microstructure.
Chilly Drawing
Cold drawing minimizes the diameter by pulling the tube by way of a die that is more compact than the tube. In buy to match
the tube into the die, a single stop is swaged thereby decreasing the diameter of the foremost finish ahead of drawing.
Following, the narrowed end is passed through the die and clamped to a drawing trolley which pul EPT the tube by way of the die.
Annealing
Annealing is used to soften the metallic ahead of even more chilly operating or fabrication procedures, and enhances the
general metallurgical microstructure of the tube. During tube reduction or chilly drawing, it can turn out to be challenging and
considerably brittle. To be able to attract the tube yet again, stresses shaped for the duration of chilly functioning require to be taken out to
return the substance to its normal state.
In the course of annealing the tube is heated to a managed temperature and soak time. Through this process the tube
continues to be in condition, but the grains in the structure of the tube reform into a normal unstressed pattern. The resulting
annealed tube is softer and suited for redrawing
Straightening
Drawing and annealing generally benefits in some diploma of bowing, making a slight bend in the tubing. In purchase to
make the tubes straight, we use numerous roll mechanical straighteners to employ this treatment, Straightening can
introduce slight changes to the measurement and mechanical homes of the tubing, so these factors are really cautiously controlled
throughout the method.
5. Inspection and Tests
We inspect all tons of tubing before cargo to ensure that each aspect of the customer’s get has been fulfilled.
Our in-house inspection and exams abilities contain:
- Chemical Composition Take a look at
- Visual inspection
- Dimensional inspection
- Area roughness testing
- Eddy Existing tests
- Hydrostatic pressure screening
- Destructive mechanical tests:
– Yield Strength
– Tensile Strength
– Elongation
– Hardness testing
– bending, flattening, and flaring
All shipments incorporate a complete Te EPT Certification demonstrating all required te EPT results and verifying compliance with the buy demands.
six.Packing & Shipments
7.Merchandise Dimensions Range:
| OD | Tolerance(mm) | Internal Area Roughness | |||||
| Inch | mm | OD | WT | BA Tube | EPT Tube | ||
| one | ±0.05 | ±0.05 | ≤0.8μ | ||||
| 1 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |||
| 3/eight | one | one.24 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 1/2 | one | 1.24 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 5/8 | 1.24 | one.65 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 3/four | one.24 | 1.sixty five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 1 | one.24 | 1.sixty five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 3 | .five | ±0.05 | ±0.05 | ≤0.8μ | |||
| 4 | .seventy one | 1 | ±0.05 | ±0.05 | ≤0.8μ | ||
| 5 | one | ±0.05 | ±0.05 | ≤0.8μ | |||
| six | one | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| eight | one | one.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 10 | one | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 12 | 1 | 1.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 14 | 1 | 1.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| fifteen | 1 | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| sixteen | one | 1.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 18 | 1 | one.five | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
| 20 | 1 | one.5 | ±0.05 | ±0.05 | ≤0.8μ | ≤0.4μ | |
If you have unique prerequisite about the tolerance of OD and WT, you should examine with us.
8. Apps:
We – EPG Group 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 The use of original tools manufacturer’s (OEM) component quantities or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating solution use and compatibility. Our company and the detailed substitute elements contained herein are not sponsored, authorized, or created by the OEM.
