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  • Heat Exchanger Tube From China - China

    price: contact company for price

    Anhui Tiankang Shares Co. , Ltd. ( AHTKS)

    Standards and steel grades,

    Tube sizes acc. to DIN 28180,

    Tube sizes acc. to ASTM A179,

    Tube sizes acc. to BS, NF A, UNI, STN, ? SN, GOST standards,

    Tube sizes acc. to EN 10216,

    Tube sizes acc. to JIS.

    Heat exchanger tubes are made using the cold rolling process and the semi- finished product for these are used rolled steel tubes. Heat exchanger tubes are used in energy and chemical industry for heating the buildings, water etc. The heat exchanger tubes make it possible to transfer thermal energy from one media to another. The heat transfer may be linked with phase transformation of the media. Overview of the dimensional standards and the technical- delivery conditions according to which these tubes are manufactured and supplied is shown in a separate overview.

    Dimensions of the heat exchanger tube

    The outside diameter of the heat exchanger tubes ranges from 16 mm to 51 mm according to DIN 28180 and from ? inch ( 12.7 mm) to 3 inches ( 76.2 mm) according to ASTM A179 The tubes for the heat exchangers may be supplied also in compliance with other standards starting with 4 mm. Detailed overview is shown in tables and according to BS, NF A, UNI, STN, ? SN, GOST standards, according to EN 10216 and according to JIS standards.

    Types of steel for heat exchanger tubes

    Tubes for the heat exchangers are made of the following steels according to EN 10216- 2: P235GH, according to DIN 1629: St 37.0, DIN 17175: St35.8, 15Mo3, DIN 17173: TTSt35N and according to ASTM A179. Additional types of steel according to BS 3606, NF A 49- 215, UNI 5462, GOST 550, GOST 1060, JIS 3461, JIS 3462, STN 42 0251 and ? SN 42 0251 together with its chemical composition and mechanical properties are shown in a separate overview. Steel is manufactured in electric arc furnace and it is killed. Other types of steel are possible to deliver upon request.

    Delivery condition and tubes surface of the heat exchanger tube

    Tubes are supplied according to agreed standards. The cold drawn tubes after the final forming go through thermal processing in shielding gas –normalizing.

    Tubes length destined of the heat exchanger tube

    Upon request the heat exchanger tubes may be supplied in length up to 18.3 meters.

    Straightness of heat exchanger tube

    Straightness deviation for the whole length of a tube L can not exceed value of 0.0015 x L. In conversion to the 1 meter length it can not exceed 3 mm.

    Ends of the heat exchanger tube

    The ends of the tubes are vertical to the longitudinal axis and are without burrs.

    Marking of the tubes and tube bundles

    Tubes are marked by spraying the agreed upon data. Tube bundles are marked with labels with the agreed upon data.

    Surface protection of the heat exchanger tube

    The inner and outer surface is protected by a light oil application. Upon request it may be protected with and easy removable oil application on the outer side. The tube ends may be enclosed by a plastic plug.

    Packaging of the heat exchanger tubes

    The tubes are usually packaged into bundles of a hexagonal cross- section and are bound with a steel band that has a paper underneath. The package is wrapped with a plastic sheet. Upon request the tubes may be supplied in wooden crates.

    Testing of the heat exchanger tube

    Besides the prescribed mechanical tests, each tube is tested with leak tightness test by eddy current. Based on an agreement it is possible to do the hydrostatic testing or ultrasound testing.

    Company Contact:

    • Phone: 865507983638

    • Address: No.20,South Renhe Road, Tianchang City, Anhui Prov, TIanchang City , China

    • Email: Email

    Published date: June 20, 2014 -

    • Business Description: Our company products of pressure gauge, Cables, Fiber Optical Cables,

      New Energy Products, Medicines, Steel Pipes and other products , are

      widely used in electric power, petroleum, chemicals, telecommunications

      and other industries.

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