Jiaxing MT stainless steel co.,ltd.
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ASTM A269 / ASME SA269 1.4404 Stainless Steel U Bend Heat Exchanger Tubing For Oil And Gas
Product Description
| Outer Diameter | 3.18-101.6mm |
| Wall Thickness | 0.5-20mm |
| NPS | 1/8"-24" |
| Schedule | 5/5S,10/10S,20/20S,40/40S,80/80S,120/120S,160/160S |
| Material Grade | 304/304L/316/316L/321/309S/310S, etc |
| Standard | ASTM A269, ASTM A312, etc |
| Application | used in Fluid and Gas Transport, Structure and Machining,etc |
| Certificates | ISO9001:2008, PED, BV |
| Process Method | Cold Drawn/ Cold Rolled |
| Surface Finish | Annealed/ Polished |
| Package | Woven bag for each piece, then packed in seaworthy wooden cases |
| Delivery Time | 20-60 Days after receiving the deposit (Normally according to the order quantity) |
| Price Item | FOB, CIF or as negotiation |
| Payment | T/T(30% in advance, 70% against the BL Copy) or as negotiation |
| Quality Requirement | Mill Test Certificate will be supplied with shipment, Third Part Inspection is acceptable |
| Main Market | Europe, Middle East, Southeast Asia, South America, etc |
ASTM A269 Chemical Composition :
| Elements | 304L(wt%) S30403 | 304(wt%) S30400 | 316L (wt%) S31603 | 316 (wt%) S31600 |
| (C) Carbon, max | 0.035 | 0.08 | 0.035 | 0.08 |
| (Mn) Manganese, max | 2 | 2 | 2 | 2 |
| (P) Phosphorus, max | 0.045 | 0.045 | 0.045 | 0.045 |
| (S) Sulfur, max | 0.03 | 0.03 | 0.03 | 0.03 |
| (Si) Silicon, max | 1 | 1 | 1 | 1 |
| (Ni) Nickel | 8.0 - 12.0 | 8.0 - 11.0 | 10.0 - 14.0 | 10.0 - 14.0 |
| (Cr) Chromium | 18.0 - 20.0 | 18.0 - 20.0 | 16.0 - 18.0 | 16.0 - 18.0 |
| (Mo) Molybdenum | N/A | N/A | 2.0 - 3.0 | 2.0 - 3.0 |
| (Fe) Iron | Bal. | Bal. | Bal. | Bal. |
| (Cu) Copper | N/A | N/A | N/A | N/A |
| (N) Nitrogen | N/A | N/A | N/A | N/A |
Process :
1 . We use Cold Drawn techonology to produce U bend tube
2 . U bend tubes produce will accordance to customer's drawings
3 . To avoid oxidation , inert gas (Argon) is passed through tubes ID at the required flow rate
4 . The radius is checked for its OD and wall thinning with the recommended specification
5 . We'll choose three different position or as customer's require to make sure tubes quality . We'll do physical properties and micro-structure test
6 . Visual inspection for waviness and cracks is done with Dye Penetrant Test
7 . Each tube is then hydro tested at the recommended pressure to check for leakage
MTSCO is a leading manufacturer who is specialized in seamless tubes , bright annealed tubes , seamless coiled tubing etc . MTSCO has the most advanced producing and testing equipment . We can totally satisfy your requirement .
Our heat exchanger tube with pickling and annealing surface is very popular in boilers and heat exchangers industry , water heater industry , air-conditioning industry etc . This kind of seamless tubes are have a very important position in our all products .