ASTM A335 Gr P9 Alloy Steel Studded Finned Tube for Heating Furnace

Brand Name:YUHONG
Certification:ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008
Model Number:ASTM A335
Minimum Order Quantity:1ton
Delivery Time:30-60days
Payment Terms:T/T, L/C
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Location: Ningbo Zhejiang China
Address: 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
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Product Details

ASTM A335 Gr P9 Alloy Steel Studded Finned Tube for Heating Furnace


YUHONG Group can make kinds of industry projects and supply variety of extruded fin tubes in industries. All of our products are domestically sourced, developed, and produced, that means our customers have easy access to exactly the products they need for their particular application. Besides, we can make sure that you can get products with highest quality and manufacturing standards and a local, concerned, customer service presence!


Features Of Finned Tube


1. An energy-efficient heat exchange component, with high heat transfer efficiency and high bearing pressure, best adapted to high temperatura areas

2. using power frequency contact type resistance welding and upsetting force fusion welding

3.adopts dual-torch metal tumor-free welding. Welding precision is ensured

4.The studded tubes welder is a mechanical-electrical integrated welder.the operation is simple and reliable,with stable and convenient performance


Fin tubes can use at very high temperatures possible because the strong connection between fin and base tube prevents loosening of fin because of heat stress, oxidization, corrosion etc. Studded Tubes are applied to convection chamber of heating furnace in petrochemical industry for increasing the heat transfer coefficient at the fuming side. Studded Tubes are two or three times the square of light Tubes and because of the usage of studded Tubes, the hot strength can be got as the same as radiation in the reasonable design.


Specifications For Various Types Of Finned Tubes


TypeDescriptionBase tubeFin specification (mm)
O.D. (mm)Fin pitchFin heightFin thick
EmbeddedG-type fin tueb16-632.1~5<17~0.4
ExtrudedSingle metal combined metal8-511.6~10<170.2-0.4
Low fin tube t-type fin tube10-380.6~2<1.6~0.3
Bamboo tube corrugated tube16-518.0~30<2.5/
Woundl/kl/ll type fin tube16-632.1~5<17~0.4
StringString fin tube25-382.1-3.5<200.2-0.5
U-typeU-type tube16-38///
WeldingHF-welding fin tube16-2193~255~300.8-3
H/HH type fin tube25-638~30<2001.5-3.5
Studed fin tube25-2198~305~35φ5-20

Tube Material : Materials Carbon Steel ,Alloy Steel (P5,P9,P11, P22),Stainless Steel and Corrosion-resistance Steel and etc.


This page is about ASTM A335 Gr. P9 studed alloy steel fin tube, studed fin tubes with fin general material carbon / alloy / stainless steel , we sell these fin tubes more than 33 years and sell in over 70 countries.


General Specifications


Base Tube/Pipe Size: Min 2” Nb To Max 8” Nb Pipe

(A106GrB, A335 P11, P22, P5,P9,A312,TP304, TP310S, TP316H, TP321H, TP347H.)

Stud Height: Min 0.5” (12.7 Mm) To Max – 2.5” (63.5MM)

Stud Diameter: Standard Size Is Circular For Extended Portion 0.5” (12.7MM) (or Be Changed As Per Customer Requirement)

Stud Spacing : 0.625” (15.875 Mm) Or 63 Studs Per Plane Per Meter (or Be Changed As Per Customer Requirement)

Thickness:4-20mm or other


No fin area on both side: As Customer's request and drawing


Detailes Of ASTM A335 Tube P9 S50400


ASTM A335 This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.


Chemical Composition (%)--MAX


GradeCMnPSuSiCrMo
P90.150.3-0.60.0250.0250.25-18-100.9-1.1

Mechanical Properties


GradeTensile Strength,minYield Strength (0.2%Offset,min)Elongation-LongitudinalHardness max
P9MPa-585MPa-41530%25HRC

Inspections and Tests


Inspections and Tests - Bare Tube
1.Chemical Composition
2.Mechanical Properties
3.Flattening Test
4.Ultrasonic Test
5.Intergranular Corrosion Test
6.Hardness Test
7.Transverse Tensile Test (only for bimetallic tube),etc.

Related Industries Involved

1.Petroleum Industry​

2.Metallurgical industry

3.Power station boilers

4.Heat exchange systems

5.Pharmaceutical industry

6.Petrochemical industry

7.Waste heat recovery


China ASTM A335 Gr P9 Alloy Steel Studded Finned Tube for Heating Furnace supplier

ASTM A335 Gr P9 Alloy Steel Studded Finned Tube for Heating Furnace

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