SA213 T11 / T22 Alloy Steel Tubes with H Fins, Welded Tubes for waste heat recovery unit
ASTM A213 / ASTM A269, TP304/ TP304L , TP316 / TP316L , Bright Annealed Stainless Steel Tube
Introduction:
Square or Rectangular H Fins are welded on a steel base tube. We call it H Fin Type Tubing. About this fin we provide additional services like Tube swaging, elbows, bends (90° / 180° or as per client's design). It has various uses in Economizers ,Heat exchangers, Marine boilers
Quality Tests
The Square or Rectangualr H Finned Tube quality is assured by hydrostatic or pneumatic tests, eddy current tests and tensile tests in order to verify the mechanical bonding between inner tubes and outer fins.
Acceptance Criteria
Approved drawing and the delivery conditions (TDC) of clients.
Surface Coating
Outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.
Specifications:
| Items | General Materials | Popular ASTM /ASME Materials |
| Core Tube Material | Carbon Steel Alloy Steel Heat Resistant Steel, Stainless Steel |
1. Carbon Steel: A106 / A179 /A192 / A210 etc... 2. Stainless Steel: TP304/304L,TP316/TP316L, TP347 etc... 3. Alloy Steel: P5,T5,P9,T9,T11,T22 |
| Studs Material |
Carbon Steel Stainless Steel |
1. Carbon Steel |
| Product Details | |
| Tube details: | Tube OD: 73 mm max. |
| Tube Length: 18 meters max. | |
| Fin Thickness: 1.5mm ~3.5mm | |
| Fin Pitch: 10mm Min. | |
| Production Capacity: | Daily capacity up to 20 tons; |
Competitive Advantage:
| Our Service | |
| 1 | Inquiry-Professional quotation, or send inquiry item more details, we start contact more details |
| 2 | Confirm the price, lead time, payment term etc |
| 3 | Our sales send the Proforma Invoice with our seal, or you order online to us |
| 4 | Customer make the payment for deposit and send us Bank receipt |
| 5 | Intial Production Stage-Inform the clients that we habe got the payment, and will make the samples according to your request, send you photos or samples to get your approval. After approval, we inform that we will arrange the production & inform the estimated time |
| 6 | Middle Production-send photos to show the production line which you can see you products. Confirm the estimated delivery time again. |
| 7 | End Production-Mass production products photos and samples will send to you for approval. You can also arrange the third party inspection |
| 8 | Clients make payment for balance and ship goods, inform the tracking number and check the status for clients |
| 9 | Order can be say "finish" when you receive the goods and satify with them |
| 10 | Feedback to our about Quality, Service, Market Feedback & Suggestion. And we can do better |
