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Boiler tubes

Heat exchanger tubes

Welded pipes

L, LL, KLM finned tubes (fin tubes)

high frequency welded (serrated) finned tubes (fin tubes)

(serrated) extruded finned tubes

hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes

condenser fin flat tubes

H / double H finned tubes (fin tubes)

Studded Pipes

Laser welded finned tubes (fin tubes)

G embedded finned tubes (fin tubes)

inner finned tubes (fin tubes)

longitudinal finned tubes (fin tubes)

seamless finned tubes with two longitudinal opposite fins

casting alloy tubes

Tube finning machine

Aluminum plates, strips,foils

Aluminum welding wire rod

Aluminum tubes, profile

Economizer for Boiler

air-cooled heat exchanger (air cooler)


standard & specification

steel tubes (pipes) acc. to ASTM A209, ASTM A209M

ASTM A209 / A209M -03 Standard Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and super heater Tubes
Main Applications: Boiler and Heat Exchanger, Automobile and Bearing Industry, Mechanical and Structral Purpose, Hydraulic and Petrochemical Purpose, etc.

Size: 6.35 - 168mm (OD) x 0.89 - 50mm (WT);
Tight tolerance, Smooth surface, Uniform mechanical property or on customer's option;
a. Heat treatment: BK, BKS, GBK, NBK,Stress Relief, Normalizing, Spheroidize Anneal, Annealing, Bright Annealing, Normalized or on customer's option;b. Quenchedand Tempered, Solution Annealing or on customer's option;
c. Rust prevention treatment and light oiled or on customer's option
d. Plastic plugs or caps on both ends or on customer's option
e. Type: Round , Square, Rectangle, Hexagon. Streamline, etc.
f. Packaging: Hexagonal bundles of max. 1,500kg with several steel strips, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips or packed in heavy tri-wall boxes, wooden boxes, wooden slats or on customer's option.

downloadASTM 209 Standard specification download

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