Yuhong Holding Group Co.,Ltd
Zhejiang Yuhongwell Steel Co.,Ltd
Zhejiang Zhongwu Tube Manufacturing Co.,Ltd
Yuhong Holding Group Co.,Ltd
Zhejiang Yuhongwell Steel Co.,Ltd
Zhejiang Zhongwu Tube Manufacturing Co.,Ltd
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| Place of Origin: | China |
| Brand Name: | YUHONG |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Model Number: | ASTM A335 GR.P9 Studded Finned Tube |
| Minimum Order Quantity: | 10PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Requirements/ Ply-wooden Case/ Iron Case/ Bundle with plastic Cap |
| Delivery Time: | Depends on quantity |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 1000 tons per month |
| Tube Material: | GR.P9 | Fin Type: | Studded Finned Tube |
|---|---|---|---|
| Fin Material: | SS410 | Bare Length: | 50mm/50mm |
| Total Length: | 8991.5mm | Fin Quantity: | 22 Studs Of Plane, 19.2 Plane/feet |
| High Light: | P9 Alloy Steel Studded Finned Tube,Seamless Beveled End Studded Finned Tube,ASTM A335 Finned Tube |
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Manufacturer ASTM A335 GR.P9 Alloy Steel Seamless Studded FinTube
What is studded finned tube?
Studed fin tube is made by electrical resistance welding specially formed studs(round pins ) in rows around the tube. The Studs can be supplied in a variety of sizes and shapes. Stud tube has a very high heat transfer efficiency. The heat exchange efficiency is equivalent to 2-3 times that of the bare pipe.
A335 is often called chrome moly pipe because of the chemical makeup of Mo and Cr. Mo increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting.
A335/SA335 P9 is a seamless ferritic alloy-steel pipe used for high-temperature applications. These pipes are versatile and can be used to transmit water, oil and natural gas. Key to the composition of chrome moly alloy P9 is the addition of chromium and molybdenum.
Features of a Studded Finned Tube:
-It occupies less space and is, therefore, compact
-Highly durable
-Preferred over Finned tubes as they act as heat transfer systems
-Enhanced performance
Package:
Size Reference for Different Types of Finned Tubes
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tueb | 16-63 | 2.1-5 | <17 | ~0.4 |
| Extruded | Single metal combined metal | 8-51 | 1.6-10 | <17 | 0.2-0.4 |
| Low fin tube t-type fin tube | 10-38 | 0.6-2 | <1.6 | ~0.3 | |
| Bamboo tube corrugated tube | 16-51 | 8-30 | <2.5 | / | |
| Wound | l/kl/ll type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3-25 | 5-30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8-30 | <200 | 1.5-3.5 | |
| Studed fin tube | 25-219 | 8-30 | 5-35 | φ5-20 | |
Chemical Composition Of GR.P9
| Cr, % | C, % | P, % | S, % | Mo, % | Mn, % | Si, % |
| 4.00-6.00 | 0.15 max | 0.025 max | 0.025 max | 0.45-0.65 | 0.30-0.60 | 0.50 max |
ASTM A335 P9 Pipe Mechanical And Physical Properties
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
Equivalent Material of Alloy Steel P9
| ASTM | JIS G 3458 | UNS | BS | ISO |
|---|---|---|---|---|
| P9 | STPA 26 | S50400 | 3604 P1 629-470 | 2604 II TS38 |
Applications:
-Power Plants
-Chemical Industry
-Heat Recovery Plants
-Heat Industry
-Steam Boiler
-Oil Refining
Contact Person: Carol
Tel: 0086-15757871772
Fax: 0086-574-88017980
