ASTM A249 TP347 Welded Tube For Boiler
Specification:ASTM A249 / ASME SA249
Manufacturing Type:ERW / Welded
Delivery Condition:Annealed and Pickled (AP), Polished
Surface Finish:BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/ Hairline, 400G, 500G, 600G or 800G
Outside Diameter (OD):6 to 304.8 mm
Wall Thickness Range:0.5 to 6 mm
Standard:SUS, JIS, AISI, ASTM, GB, DIN, EN
ASTM A249 TP347 welded tube for boiler introduction
ASTM A249 TP347 stainless steel boiler tube is an austenitic stainless acid-resistant steel containing chromium, nickel and niobium. It has high temperature resistance and intergranular corrosion resistance. It has a melting point of 1398-1427℃, a density of 7.9g/cm³, a specific heat capacity of 500J/(kg・K), and an elastic modulus of 196GPa at 20℃ (167GPa at 600℃). It is widely used in aviation, petrochemical, food, papermaking and other industries. The working temperature does not exceed 850℃. During manufacturing, it needs to be solution treated at 980-1150℃ and quickly cooled to improve mechanical and corrosion resistance.
ASME SA249 TP347 Welded Steel Tubing
What is the difference between TP347 and TP321 (containing titanium) pipe?
TP347 stainless steel pipe has better resistance to intergranular corrosion at high temperatures due to its stronger carbide-forming ability of niobium, and is suitable for oxidation and corrosion resistance environments at higher temperatures (such as above 850°C). TP321 relies on the combination of titanium and carbon and performs well at moderately high temperatures.
Why choose GNEE?
GNEE is a professional steel pipe exporter with 12 production lines and an annual output of 50,000 tons. It has obtained the ISO9001 international quality management system certificate.
In addition, we can also provide a full range of processing services: cutting, chamfering, punching, welding, bending, notching, pickling.
Our experienced staff is always available to discuss your requirements and ensure full customer satisfaction. Your inquiries are always welcome!
ASTM A249 TP347 Stainless Steel Tube Specification
Chemical Composition (Weight %)
| Element | C | Si | Mn | P | S | Cr | Ni | Nb |
|---|---|---|---|---|---|---|---|---|
| Min. | - | - | - | - | - | 17.0 | 9.0 | 10×C |
| Max. | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 19.0 | 13.0 | 1.00 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥515 |
| Yield Strength (0.2% Offset, MPa) | ≥205 |
| Elongation (%) | ≥30 (in 50mm gauge length) |
| Hardness (HB) | ≤217 |
Supplier of Stainless Steel Welded Tubing
Customer visit
GNEE Stainless Steel Tube Packaging
Hot Tags: astm a249 tp347 welded tube for boiler, China astm a249 tp347 welded tube for boiler manufacturers, suppliers, factory, welded stainless steel pipe standard, welded stainless steel tubing production, stainless steel welded tubing manufacturing process, stainless steel welded pipe production, stainless steel welded tubing installation, stainless steel welded pipe installation
You Might Also Like
Send Inquiry