• Model NO.：U Bend Tube
• Usage：Boiler Pipe
• Section Shape：Round
• Transport Package：Wooden Cases
• Specification：8-133mm
• Trademark：haopipe
• Origin：China
• HS Code：73044100
• Production Capacity：1000000PCS,Year

 Company Introduction
HAOHUA INDUSTRY offers the widest variety of sizes available in the industry. All of our products are domestically sourced, developed, and produced, which means our customers have immediate access to exactly the products they need for their particular application. And you are assured of the highest quality and manufacturing standards and a local, concerned, customer service presence.

Product Description
SA-789 S31803 Stainless Steel Seamless U Bend Tube For Heat Exchanger
U bending is done by cold working process.
U bending is done to the required radous ae per customer drawings.
The bend portion and six inch leg is stress relieved by resistance heating.
Inert gas (Argon) is passed through it at the required flow rate to avoid oxidation in ID.
The radius is checked for its OD and wall thinning with the recommended specification.
The physical properties and micro-structure is checked at three different position.
Visual inspection for waviness and cracks is done with Dye Penetrant Test.
Each tube is then hydro tested at the recommended pressure to check for leakage.
Cotton ball test is done to check the ID cleanliness of the tube.
Thereafter pickled,dired,marked and packed.S30403,S30453,S30400,S30409,S32100,S32109,S31603,S31600 etc
 FAQQ1: What's the advantage of your company?
A: Our company specializes in trading for more than 13 years. We know how to solve any kinds of emergency accident during trading to give you a high quality and safety services . Choose the most suitable manufacture to satisfy your requirements is our goal. 

Q2: I do not have experience to purchase from China before. How to start my first order?
A:  It is easy and simple. Please feel free to contact with us. Experienced team is ready to help you step by step.

Q3: Can I get some samples?
A: Yes, we are honored to offer you samples for quality check.

Q4:How to confirm the quality ?
A: Third party inspection is warmly welcome before shipment. We have cooperated with SGS, CCIC,TECHNICO,BV,FIDES,etc.If you require the previous release notice issued by them,we would like to send you before order. 

Q5: Is it possible to know how is my product going on without visiting your company?
   A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress.

Q6: What is the production cycle?
A: It varies a lot depending on product dimension,technical,requirements and quantity. We always try to meet customers' requirement by adjusting workshop schedule.

Q7: What is your payment?A: Normally, by T/T 30% down payment, 70% balance before shipment. 100% L/C at sight is also accepted by us.