ASTM/GB/API/DIN/JIS Austenitic Duplex Stainless Steel U Tube for Heat Exchanger Boiler
zheheng steel specializes in producing stainelss steel seamless pipe. We always put the quality as the first consideration. If you're interested in cooperating with our company, welcome to contact me. We will be happy to give you a quotation upon receipt of your detailed requirements.
Products Description
| Type | Seamless/Welded |
| Size | Outside diameter: 10mm--630mm(seamless); 10mm-2500mm(welded) |
| Wall thickness | 0.5mm--50mm |
| Standard | ASTM A312,ASTM A269, ASTM213,EN10216-5 ASTM A789 (ASME SA789), ASTM A790 (ASME SA790) etc. |
| Grade | TP304, 304L, 304H, TP316, 316L, 316H, TP321/321H, TP347/347H, S31803, S32205, S31500, S32304, S32750, S32760 etc. |
| Surface | Pickling,solid solution, polished or as customer's requirement |
| Packing | Bundle, plastic bag, woven bag, wooden case |
| Delivery | stock, 5-30days to port |
Stainless steel tube for heat exchanger
Specifications:
1) Diameters: 4 - 76.2mm
2) W. T.: 0.4 - 2.5mm
3) Grades: 316L/304/304L/310S, etc.
4)standard: GB/ISO/EN/ASTM/JIS, etc.
5)application range: Widely use in the foodstuff, medical equipment, power, boiler, cooler, auto, condenser etc.
6)packing: Inner packing: 1 PC/plastic bag; Outer packing: Bundles in weaving bags or in plywooden case.
The thick the deviation of admission( do not include the weld sew) in wall of the weld tube is for ruling the wall thick 10% of ±, but minimum admission deviation is the 0.02 mms of ±.
The weld takes care of of settle Chinese foot length as 3 ms~9 ms, general settle the Chinese foot with the 6 ms.
The weld takes care of of settle the Chinese foot length in usually length, its the deviation of admission is the 5 mms of ±.
Adopt partial the degree of flinch in a the tube of weldfor keeping the Chinese foot measurement should not very in 2.0 mms.
The machine function sees the table 5
table 5
| Steel number | Card number | The heat handles Make degree |
The anti- pulls the strength MPa |
Accept defeat the strength MPa |
Extension rate% | Degree of hardnessHRB |
| 0Cr19N19 | 304 | ≥1010°C Nasty and cold |
≥520 | ≥205 | 40 | ≤90 |
| 00Cr19Ni11 | 304L | " " | ≥480 | ≥175 | 40 | ≤90 |
| 0Cr17Ni12M02 | 316 | " " | ≥520 | ≥205 | 40 | ≤90 |
| 0Cr17Ni14M02 | 316L | " " | ≥480 | ≥175 | 40 | ≤90 |
| 0Cr18Ni11Ti | 321 | ≥920°C Nasty and cold |
≥520 | ≥205 | 40 | ≤90 |
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 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: 100% T/T advance. ( For small order.)
B: 30% T/T and balance against copy of documents.
C: 30% T/T advance, balance L/C at sight
D: 30% T/T , balance L/C usance
E: 100% L/C usance.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.