Home Companies Yuhong Group Co.,Ltd

ASTM A335 Grade P5 P9 P11 P22 P91 Alloy Steel Studded Finned Tube For Furnace

Contact Us

[China]

Trade Verify

Address: 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA

Contact name:Jikin Cai

Yuhong Group Co.,Ltd

Verified Suppliers

Trust
Seal
Verified
Supplier
Credit
Check
Capability
Assessment

ASTM A335 Grade P5 P9 P11 P22 P91 Alloy Steel Studded Finned Tube For Furnace

Country/Region	china
City & Province	ningbo zhejiang
Categories	Bearings

Product Details

ASTM A335 GRADE P5 P9 P11 P22 P91 CARBON STEEL FINNED TUBE FOR HEAT EXCHANGER

We are a Chinese wholesaler of studded finned tubes. Studded finned tubes are made by welding specially shaped studs (round pins) in rows around the tube. Riveted finned tubes are also known as pinned finned tubes. The heat transfer efficiency of Studded finned tube is very high. The heat exchange efficiency is equivalent to 2-3 times of bare tube.

Studded finned tube is generally used in furnaces and boilers where surfaces are exposed to corrosive environments. It also improves the efficiency of heat recovery processes and direct combustion in hazardous atmospheres. Studded fin tubes are ideal for process applications that use unclean fuels and harsh environments. They are easier to clean, especially with dirty fumes from burning heavy oil and diesel fuel.

PRODUCT DESCRIPTION

Base Tube Material:	stainless steel, carbon steel, alloy steel;
Material Grade:	A335 P1,P5,P9,P11;
	A213 T9,T11,T22,TP304,TP316/316L,TP321;
	A106 GrB;
	A210 Gr A1, A210 Gr C; A192;
	A213 TP304/304L, TP316/TP316L, TP321, TP310S, TP317;
Studs Material:	Carbon steel ASTM A510 grade 1005 to 1010;
	Stainless steel AISI 304, 316, 410, 347, 321;
	A193 Grade: B6, B6X, B8, B8a, B8M, B8C. Cr-Mo alloy etc..
	Base Tube O.D:31.75-165mm
Stud Height:10-60mm
Stud Pitch: As Customer's Request.
Ends: Plain Ends, Beveled Ends
Bare Tube Length On Both Side:As Customer's Request.

Finned tubes with studs are made by resistance welding studs to the bare tube.

The fins are made by welding fin material which is resistance welded to the tube with studs or rods at the bottom by a resistance welding process.

Current flows through the tube and the bottom of the stud. The shape of the stud is specifically designed to facilitate welding. During the fin "welding" process, the stud is also mechanically pressed against the tube at the weld point, creating a very good mechanical bond. This type of finned tube works well in high pressure and high temperature applications. This mechanical bond is so strong that it can be used where extreme mechanical loads and pressures are required during processes such as machining or cleaning.

These finned tubes are used in finned tubes, air coolers, heat exchangers, etc. and are favoured in the following industries

Petrochemical refineries, power plants, chemical industry, steel mills, etc,

Manufacturing process:	Fully automatic welding of studs to tubes by resistance welding.
Acceptance Criteria:	Customer approved drawings and delivery conditions.
Delivery conditions:	Tube ends square cut, burr free, internally dry and blown clean, extruded bimetallic finned tube ends externally varnished.
Surface protection:	Oil impregnated, black coated or varnished.
Type of studs:	Cylindrical or oval
Documentation:	Includes raw material mill certificates, inspection and test sample results, and manufacturer's warranty certificates.