Integral Flange
Integral Flange
Integral Flange
Integral Flange
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  • Integral Flange
  • Integral Flange
  • Integral Flange
  • Integral Flange

Integral Flange

Application Scenarios:
● Long-distance oil & gas transmission pipelines, wellhead supporting equipment, core process pipelines of refineries;
● High-temperature and high-pressure steam pipelines for power stations, main delivery pipelines of boilers;
● Coal chemical industry, hydrogenation units, high-pressure reaction pipelines for large-scale chemical plants;
● Offshore oil and gas platforms, LNG cryogenic transmission pipelines, connecting nozzles of high-pressure pressure vessels.

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Product Model


Description


  • 产品描述
  • Product Overview

    Full pressure rating coverage: American standard Class150~2500, Chinese national standard PN16~PN160. IF flanges are standard fittings for high-pressure wellhead equipment complying with API6A specification.

    The flange is integrally formed with a tapered long neck. The pipe and flange neck are joined by full penetration groove butt welding.

    Core Technical Parameter Table

    Parameter ItemParameter Value
    AbbreviationIF
    Full Product NameIntegral Flange
    GB Standard MaterialsCarbon Steel:20#
    Alloy Steel:16Mn、20MnMo、15CrMo、12Cr1MoV、14Cr1Mo、12Cr2Mo1、12Cr2Mo1V、12Cr5Mo、10Cr9Mo1VNbN、30CrMo、35CrMo
    Low Temperature Steel:16MnD、20MnMoD、09MnNiD
    Austenitic Stainless Steel:S30408 (304)、S30403 (304L)、S30409 (304H)、S32168 (321)、S32169 (321H) 、S34778 (347)、S34779 (347H) 、S31608 (316) 、S31603 (316L) 、S31609 (316H)
    Duplex Stainless Steel:S22053 (2205)
    ASTM & ASME MaterialsCarbon Steel:A105
    Low Temperature Carbon Steel (A350):LF2、LF3、LF6
    Line Pipe Steel (A694):F52、F60、F65、 F70
    Low Alloy Steel (A182):F5、F5a、F9、F91、F92、F11 (Cl.1/2/3)、F22 (Cl.1/3)
    Austenitic Stainless Steel (A182):F304、F304L、F304H、F316、F316L、F316H、F321、F321H、F347、F347H
    Duplex Stainless Steel (A182):F51 (2205)、F60 (S32205)
    Sealing Face Type

    welded seal

    PN Pressure Rating (GB Standard)PN2.5 PN06、PN10、PN16、PN25、PN40、PN63、PN100、PN160 PN250 PN320 PN400
    Class Pressure Rating (ASME Standard)Class 150、300、600、900、1500、2500
    CertificationsAPI/ISO/CE
    Payment TermsL/C, D/P, T/T
    Delivery Lead Time10-30 day
    Production Capacity5000TONS/MONTH
    Applicable StandardThe company manufactures flange products complying with international and domestic standards including ANSI B16.5, ASME B16.47/16.48, DIN EN 1092-1/2, JIS B2220, GOST 12821-80, GB/T 9124.1, SH/T 3406, SH/T 3426, SH/T 3425, HG/T 20615 and HG/T 20592.

    Production Process

FAQs


Basic info about your pipe fitting factory, establishment year and location?

Cangzhou Dongjun Pipe was founded in 2000, located in Buzhai Industrial Zone, Mengcun — China’s well-known capital of elbows and pipe fittings. We enjoy convenient transport near Huanghua Port, Beijing and Tianjin. Our annual production capacity reaches 20,000 tons, with 230 employees including 45 professional technical engineers. Factory visits are welcome.

What main pipe fitting products can you provide?

We manufacture high, medium and low pressure steel pipeline components. Main products include flanges, elbows, tees, reducers, socket weld inserts, nozzles and pipe supports. We have more than 1000 specifications covering mainstream pipeline accessories to realize one-stop procurement.

What metal materials are available for your pipe fittings?

We supply carbon steel, alloy steel, stainless steel, duplex steel and nickel-based alloy to fit different temperature, pressure and corrosion environments. If you need special custom metal materials for special working conditions, our technical team can also meet your requirements.

Which international standards do your products comply with?

Our products support GB, ASME, DIN and JIS standards. Every batch of goods can be matched with EN10204:2004 official test reports, which are widely recognized by engineering supervisors in global projects.

How do you control product quality before delivery?

We own over 200 sets of professional production and testing equipment, including full NDT devices, spectrometers and mechanical testing machines. Raw material inspection, semi-finished product testing and finished product full inspection will be completed strictly before shipment to avoid defective goods.

What certifications does your factory hold for project bidding?

We have ISO9001/14001/45001 system certificates, API Spec Q1 10th Edition certificate and China Special Equipment Manufacturing License for pressure pipeline components. All valid certificates can be provided for your tender review at any time.

 

Qualification


Integral Flange

Application Scenarios:
● Long-distance oil & gas transmission pipelines, wellhead supporting equipment, core process pipelines of refineries;
● High-temperature and high-pressure steam pipelines for power stations, main delivery pipelines of boilers;
● Coal chemical industry, hydrogenation units, high-pressure reaction pipelines for large-scale chemical plants;
● Offshore oil and gas platforms, LNG cryogenic transmission pipelines, connecting nozzles of high-pressure pressure vessels.

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OUR SERVICE

We offers a wealth of product support resources, including a range of technical and downloadable product manuals to product certifications.

Our Service Product Catalog

COMPANY STRENGTHS

Experience

26 years of professional pipe fittings production and customization experience, with 45 senior technical engineers to support project development.

OEM/ODM

Full support OEM & ODM customization. We produce carbon/alloy/stainless steel fittings with 1000+ specs complying with GB, ASME, DIN, JIS standards.

Reliable Quality

Strict raw material selection & full-process inspection. Our lab equips complete devices for chemical analysis, mechanical test and NDT.

Certification

Possess full authoritative qualifications: ISO triple system, API Spec Q1, national pressure pipeline manufacturing license, EN10204 test certificates available.

Export

Located in Mengcun pipe fittings hub adjacent to Huanghua Port. Products cover all China provinces and export to Southeast Asia, Middle East, South America and more.

Advanced Equipment & Tech

200+ sets of advanced forging, CNC machining and full inspection equipment, annual output reaches 20,000 tons of high-pressure pipe fittings.

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