SS S34700 Welded Coiled Tubing is a stabilized austenitic stainless steel similar to type 304 with an addition of Columbium and Tantalum. The columbium serves to produce a stabilized type of stainless steel which is immune to chromium carbide precipitation. Also referred as UNS 1.4550 Erw Coil Tube, we also offer these Austentic SS 347/347H Coil Tubes at customized sizes and shapes too our esteemed clients according to their requirements. Also known as, these stainless steel erw coil tubes are available at market leading prices. Our Alloy 347H Erw Coiled Tubes can be used for various applications such as in Chemical Processing; Food Processing—equipment and storage; Petroleum Refining—fluid catalytic cracking units, polyphonic acid service; Waste Heat Recovery — recuperates, and more.
Thickness: - 0.3mm - 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Equivalent grade of SS 347/347L Coiled Tube: | Standard | SS 347 | SS 347H |
| UNS | S34700 | S34709 |
| WERKSTOFF NR. | 1.4550 | 1.4961 |
Chemical Composition of SS 347/347L Coiled Tube: | Grade | C | Mn | Si | P | S | Cr | Ni | Ti |
| 347 | 0.08 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-13.0 | 10 x C min. |
|
| (1.00 max.) |
| 347H | 0.04 – 0.10 | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-13.0 | 8 x C min. |
|
| (1.00 max.) |
Mechanical properties of SS 347/347L Coiled Tube: | Grade | 347 / 347H |
| Density | 7.96 |
| Melting Range,??? | 1450 ??? |
| Elongation % | 40 |
| Tensile Strength (Mpa) | 515 |
| Yield Strength (Mpa) | 205 |
| Hardness (Brinell) | |