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Yuhong Group Co.,Ltd

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China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger
China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger

  1. China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger
  2. China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger
  3. China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger
  4. China JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger

JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger

  1. MOQ: 500 KGS
  2. Price: Negotiable
  3. Get Latest Price
NDT ET, UT, Hydrostatic Test
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Material STB340 Carbon Steel
WT Size OD Size Customized
OD Size Customized
Application Boiler, Heat Exchanger, Economizer
Standard JIS G3461
Delivery Time 5-80 Days
Supply Ability 15000tons/month
Tube Type Seamless Tube
Surface Mill Finished, Polished, Customized
Payment Terms L/C, D/A, D/P, T/T
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001, ISO 14001, ISO18001, ASME
Model Number JIS G3461 STB340 Seamless Tube
Place of Origin CHINA
Brand Name YUHONG

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  1. Product Details
  2. Company Details

Product Specification

NDT ET, UT, Hydrostatic Test Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Material STB340 Carbon Steel WT Size OD Size Customized
OD Size Customized Application Boiler, Heat Exchanger, Economizer
Standard JIS G3461 Delivery Time 5-80 Days
Supply Ability 15000tons/month Tube Type Seamless Tube
Surface Mill Finished, Polished, Customized Payment Terms L/C, D/A, D/P, T/T
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001, ISO 14001, ISO18001, ASME Model Number JIS G3461 STB340 Seamless Tube
Place of Origin CHINA Brand Name YUHONG
High Light JIS G3461 STB340S carbon steel tubeboiler heat exchanger steel tubeeconomizer tube carbon steel

JIS G3461 STB340 Seamless Carbon Steel Tube for Boiler and Heat Exchanger

Product Overview

JIS G3461 STB340 seamless carbon steel tube is designed for boiler and heat exchanger applications where heat transfer occurs between the inside and outside surfaces of the tube.

Manufactured according to JIS G3461 requirements, STB340 carbon steel tubes are commonly used in boiler water tubes, smoke tubes, superheater tubes, air preheater tubes, and heat exchanger equipment.

The STB340 grade is selected for general industrial thermal equipment requiring carbon steel tube solutions with controlled chemical composition, mechanical properties, and dimensional requirements.


Material and Standard

JIS G3461 STB340 Carbon Steel Tube

Standard: JIS G3461
Material Grade: STB340
Material Type: Carbon Steel
Tube Type: Seamless Tube
Application Standard: Boiler and Heat Exchanger Service

JIS G3461 specifies carbon steel tubes used for heat exchange applications, including boiler tubes, heat exchanger tubes, condenser tubes, and related thermal equipment.


Manufacturing Process

JIS G3461 STB340 seamless tubes are manufactured through controlled production processes:

Tube Forming

Steel billets are heated and processed through seamless tube forming methods.

Heat Treatment

Heat treatment is performed according to applicable requirements to achieve specified mechanical properties.

Finishing Process

Final processes may include:

  • Cold drawing
  • Straightening
  • Surface treatment
  • Dimensional inspection

The manufacturing process helps achieve required tube dimensions and surface conditions for boiler and heat exchanger fabrication.


Technical Features

Carbon Steel Material Structure

STB340 carbon steel provides a practical material solution for conventional boiler and heat exchanger tube applications.

Seamless Tube Construction

The seamless structure provides uniform tube geometry and is commonly applied in pressure and heat transfer equipment.

Suitable for Thermal Equipment

STB340 tubes are commonly used where controlled tube dimensions and material properties are required for heat exchange systems.


Product Specifications

Item Specification
Standard JIS G3461
Grade STB340
Material Carbon Steel
Tube Type Seamless Tube
Shape Round Tube
Application Boiler, Heat Exchanger, Economizer
Manufacturing Hot Finished / Cold Finished
Surface Mill Finished / Customized
Inspection ET, UT, Hydrostatic Test
 

Available Dimensions

Parameter Range
Outside Diameter Customized according to requirements
Wall Thickness Customized according to requirements
Length Fixed Length or Customized
Surface Condition Smooth Surface / Mill Finish
 
Applications

 

Boiler Equipment

STB340 seamless tubes are used in:

  • Boiler water tubes
  • Smoke tubes
  • Superheater tubes
  • Economizer tubes

Heat Exchanger Systems

Applications include:

  • Shell and tube heat exchangers
  • Condenser systems
  • Industrial heat transfer equipment

Industrial Facilities

Common industries include:

  • Power generation
  • Chemical processing
  • Petroleum equipment

 


Quality Control and Inspection

Inspection procedures can include:

Material Inspection

  • Chemical composition analysis
  • Mechanical property testing

Dimensional Inspection

  • Outer diameter measurement
  • Wall thickness measurement
  • Length inspection

Non-Destructive Testing

  • Eddy Current Testing (ET)
  • Ultrasonic Testing (UT)
  • Hydrostatic Testing

Testing requirements can be adjusted according to customer specifications and project requirements.


Packaging

JIS G3461 STB340 seamless tubes are supplied with suitable protection for transportation.

Packaging options include:

  • Steel bundle packaging
  • Protective wrapping
  • Tube marking according to requirements

Product identification may include:

  • Standard designation
  • Material grade
  • Size information
  • Heat number

 

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Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...   Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...

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  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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