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| Brand Name: | Yuhong |
| Model Number: | ASTM A376 TP347H |
| MOQ: | 100kgs |
| Price: | Negotiable |
| Payment Terms: | L/C,T/T |
| Attribute | Value |
|---|---|
| Type | High Frequency Welding Fin Tubes |
| Stud Pitch | As Per Client Request |
| Fin Thick | 0.8mm-3mm |
| Bare Tube Diameter | 16mm-219mm |
| Production Process | Cold Drawn |
| Ndt | Hydrostatic Test, PT |
| Fpi | 9-13 |
| Welding Area | According to actual demand |
This finned tube is made from ASTM A376 TP347H, a high-temperature austenitic stainless steel pipe, combined with carbon steel solid fins welded onto the outer surface using high-frequency welding (HFW). It is widely used in high-temperature heat exchangers, furnaces, and power plant economizers, where enhanced heat transfer and structural durability are critical.
| Element | Content (%) |
|---|---|
| C | 0.04 - 0.10 |
| Mn | ≤ 2.00 |
| Si | ≤ 1.00 |
| P | ≤ 0.040 |
| S | ≤ 0.030 |
| Cr | 17.0 - 19.0 |
| Ni | 9.0 - 13.0 |
| Nb (Cb) | 8 × C to 1.10 |
| Fe | Balance |
| Element | Content (%) |
|---|---|
| C | ≤ 0.22 |
| Mn | 0.30 - 0.70 |
| Si | ≤ 0.35 |
| P | ≤ 0.045 |
| S | ≤ 0.050 |
| Fe | Balance |
| Property | TP347H BaseTube | Carbon Steel Fin |
|---|---|---|
| Tensile Strength | ≥ 515 MPa | 375-500 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 235 MPa |
| Elongation | ≥ 35% | ≥ 20% |
| Hardness | ≤ 95 HRB | ≤ 120 HB |
Used in high-temperature and high-pressure systems, such as:
