Bright and polished without scratches and burrs
The stainless steel decorative tube is characterized by a tendency to cause intergranular corrosion when it is heated for a long period of time in the temperature range of 500 to 850 °C. Therefore, pay attention to the following points in the process of stainless steel decorative pipe bending process:
1. The stainless steel pipe should be cold-bent or placed on the intermediate frequency induction electric heat bender at 1100-1200 °C for bending;
2. The cold bend can be bent or bent with a mandrel bender.
3. The mandrel is made of plastic products, and the phenolic plastic ferrule is mounted on the metal rod for bending. The use of such a phenolic plastic mandrel to bend a stainless steel tube maintains the quality of the inner wall of the tube without scratches, scratches and other defects.
Stainless steel decorative tube
4. Bend the thick-walled tube without using the mandrel. However, in order to prevent bending and ellipticity, the pipe should be filled with fine sand. After the pipe is bent, the fine sand in the pipe should be cleaned.
5. Bend the pipe to wash the inner wall of the pipe with hot water to remove the grease on the wall, and then air dry or dry.
6, stainless steel pipe can also be used in the intermediate frequency electric heat pipe bending machine; but when bending the pipe should pay special attention to check the heating temperature, so that the temperature is not lower than 900 ° C (detected with optical pyrometer). In order to make the heating surface uniform when the tube is heated and to avoid burning the tube, a special protection device can be used to form a heated protection zone by using an inert gas such as nitrogen or helium to prevent oxidation.
7. After the high-pressure pipe is pressed, non-destructive testing shall be carried out. If there is any defect, it shall be ground away; however, the wall thickness after grinding shall not be less than 90% of the nominal wall thickness of the pipe. And take the same batch of pipe test pieces for the intergranular corrosion tendency test. If there is any unqualified, all heat treatment should be done, but the heat treatment time should not exceed 3 times, otherwise the pipe should be scrapped.
8. When the high-pressure austenitic stainless steel tube is hot-bent, the hot bending temperature is preferably 900-1000 ° C, the heating temperature is not more than 1100 ° C, and the final bending temperature is not lower than 850 ° C. After hot bending, it must be solid solution quenched (1015-1100 °C water quenching).
Product Description
Detailed Images
Brief Introduction of Decorative 201 202 310s 304 316 grade 6 inch welded polished stainless steel pipe suppliers
Stainless steel pipes are used in a wide range of industries/markets, due to their overall corrosion resistance and good machinability. Pipes are generally considered passageways for liquids, and measured by inside diameter or ID. Some industry examples include marine, chemical & petrochemical, oil & gas, and renewable energy.
All 202 grade stainless steel pipe is supplied as dual certified (material can be used for both straight-grade and low-carbon requirements)
We can customize the 202 grade stainless steel pipe for you based on your sizes and quantity if special requirements.
Detailed images of Decorative 201 202 310s 304 316 grade 6 inch welded polished stainless steel pipe suppliers
Good surface and finish
Precise measurements
advanced facility to make the 202 grade stainless steel pipe measurements precisely
Anti-rusted and acid resistance
With Nickel and Chrome makes the 202 grade stainless steel pipe good durability
Wide applications
the 202 grade stainless steel pipe can be used in many applications areas such as boiler, floating, decoration, gas, oil etc.
stainless steel square/rectangular pipe
stainless steel oval pipe
stainless steel hexagonal pipe
Our Service
Prime quality products
The products are through ISO certificate and can be inspected by other third party inspection agents such as SGS,BV etc.
Large quatity stock inventory
The annual volume inventory is 200,000-300,000 tons for standard dimensions.
Our Company
TIANJIN ZHANZHI STEEL CO., LTD.
Founded in 2008, It is a branch of Shanghai Zhanzhi Industry Group Co.,Ltd.
Founded in 2008, It is a branch of Shanghai Zhanzhi Industry Group Co.,Ltd.
OUR HISTORY
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.
CSPG has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.
Packing & Delivery
Certifications
FAQ
Q: WHY SHOULD I CHOOSE YOU?
A: Choose happens because of quality,then price, we can give you both. Additionally, we can also offer professional products inquiry, products knowledge train( for agents), smooth goods delivery, excellent customer solution proposals.
Our service formula:good quality + good price + good service = Customer's trust
Q: HOW LONG IS YOUR DELIVERY TIME?
A: Generally it is 10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.
Q: DO YOU PROVIDE SAMPLES ? IS IT FREE OR EXTRA ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: WHAT IS YOUR TERMS OF PAYMENT ?
A: We accept LC and TT both.
A: Choose happens because of quality,then price, we can give you both. Additionally, we can also offer professional products inquiry, products knowledge train( for agents), smooth goods delivery, excellent customer solution proposals.
Our service formula:good quality + good price + good service = Customer's trust
Q: HOW LONG IS YOUR DELIVERY TIME?
A: Generally it is 10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.
Q: DO YOU PROVIDE SAMPLES ? IS IT FREE OR EXTRA ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: WHAT IS YOUR TERMS OF PAYMENT ?
A: We accept LC and TT both.