ASTM A213 T9 Alloy Steel Seamless Stud Fin Tube Customized Size
Brand Name:YUHONG
Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:ASTM A213 T9 Studded Finned Tube
Minimum Order Quantity:10PCS
Delivery Time:Depends on quantity
Payment Terms:T/T, L/C
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Ningbo Zhejiang China
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20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
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ASTM A213 T9 Alloy Steel Seamless Stud Fin Tube Customized Size
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.
Features of a Studded Fin Tube:
-It occupies less space and is, therefore, compact
-Highly durable
-Preferred over Finned tubes as they act as heat transfer systems
-Enhanced performance
Size Reference for Different Types of Fin 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 T9
| 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 |
Mechanical Properties of A213 T9 Alloy Steel Seamless Tubes
| Properties | Data |
| Tensile strength, min, (MPa) | 415 Mpa |
| Yield strength, min, (MPa) | 205 Mpa |
| Elongation, min, (%), L/T | 30/20 |
Equivalent Material of Alloy Steel T9
| ASTM | JIS G 3458 | UNS | BS | ISO |
|---|---|---|---|---|
| T9 | STPA 26 | S50400 | 3604 P1 629-470 | 2604 II TS38 |
Applications:
-Power Plants
-Chemical Industry
-Heat Recovery Plants
-Heat Industry
-Steam Boiler
-Oil Refining
ASTM A213 T9 Alloy Steel Seamless Stud Fin Tube Customized Size
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