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Seamless pipe manufacturing

Seamless Stainless Steel, Duplex & Nickel Alloy Pipe Manufacturer

Junda Pipe manufactures Jungang seamless stainless, duplex and nickel-alloy pipe to ASTM/ASME standards in Songyang, Zhejiang, with a Dubai trading office for UAE, Saudi Arabia, Qatar and GCC buyers.

Published standardsGBASTMASME

  • Manufacturing rangeODφ6–φ630 mmWT0.2–80 mm
  • Nondestructive testingUT / ET
Annual capacity
10,000+ t
Factory area
27,000 m²
Stock across two warehouses
≈6,000 t
Product groups
6

02Size & grade check

Check a pipe size before you request a quote

Choose a grade family and grade, enter outside diameter and wall thickness, then carry the values into the quote form.

Grade family

Published manufacturing range: OD 6–630 mm · WT 0.2–80 mm

Grade
316/316L
OD × WT
114.3 × 6.02 mm
Inside diameter
102.26 mm
Theoretical weight
16.38 kg/m

Theoretical mass from nominal density. Final dimensions, tolerances and weight follow the order specification and the mill test certificate.

04Production & testing

Manufacturing & inspection

See production & testing

05Verification

Quality & qualifications

Quality and Inspection Information

Published certificate

ISO 9001 quality management system

Certificate number
19821QA0205R1S
Standard
GB/T 19001-2016 / ISO 9001:2015
Issued by
Beijing Xinjiyuan Certification Co., Ltd. (CNAS accredited)
Valid until
2027-01-26

Published certificate

Special equipment manufacturing licence (A2B2)

Certificate number
TS2733N39-2027
Standard
Special Equipment Production Licence (China)
Issued by
Zhejiang Administration for Market Regulation
Valid until
2027-03-16
Junda factory building 1

06About

From our factory in Songyang

Based in Songyang, Zhejiang, Junda manufactures seamless pipes under the Junda Pipe brand and exports to India, the United States and the Middle East (UAE, Saudi Arabia, Qatar and the wider GCC).

Factory area
27,000 m²
Stock across two warehouses
≈6,000 t
Explore Junda Pipe

07From our business partner directory.

Business Partners

  • Samsung
  • Shell
  • GE
  • Alstom
  • ASE Group
  • Wanhua Chemical
  • Gree
  • China State Shipbuilding Corporation (CSSC)
  • China North Industries Group (NORINCO)
  • China Aerospace Science and Technology Corporation (CASC)
  • Shenhua Group
  • China Datang Corporation
  • Harbin Electric
  • Bluestar
  • Beijing Gas
  • China Shipbuilding Industry Corporation (CSIC)
  • Shaangu Group
  • Shenyang Blower Works Group

What should buyers confirm before requesting a quote?

Junda manufactures seamless stainless steel and nickel-alloy pipe to project requirements. Send the grade, size, standard and inspection scope, including any EN 10204 3.1 or 3.2 certificate and third-party inspector; the team returns a technical quotation with delivery and document terms.

Who manufactures Junda Pipe products?

Zhejiang Junda Steel Pipe Manufacturing Co., Ltd. manufactures seamless stainless steel and alloy pipes under the Jungang brand. Junda Pipe is the short name used on this website.

Which UNS grades and ASTM/ASME standards does the catalogue publish?

For each group, the catalogue lists the UNS designation and typical ASTM/ASME standards, for example Inconel 625 (N06625), Incoloy 800HT (N08811) and Alloy 20 (N08020). The company range is φ6–φ630 mm outside diameter and 0.2–80 mm wall thickness; this is a manufacturing range, not stock for every grade. The applicable standard edition, supply condition and inspection scope are confirmed in the quotation before an order is accepted.

What outside diameter and wall thickness does the company publish?

The published company range is φ6–φ630 mm outside diameter and 0.2–80 mm wall thickness. That range describes the company profile. It is not the stocked size of every grade. Confirm the dimensions for your grade when you request a quote.

Which certificates are published with a number and an end date?

ISO 9001:2015, certificate number 19821QA0205R1S, valid until 2027-01-26, and the Chinese special equipment production licence A2B2, number TS2733N39-2027, valid until 2027-03-16. Scope and issuer are published on the quality page.

What should I include in a pipe enquiry?

Email sales@jundapipe.com or use the contact form. Include the material grade or product family, outside diameter × wall thickness × length, quantity and destination, the applicable standard and inspection requirements, and a target delivery date if you have one. Phone is optional. Dimensions, minimum order quantity and lead time are confirmed in the quotation.

08Offices & contact

Request a pipe quote

Send your enquiry to our Songyang factory, the Wenzhou office or Prime Junda in Dubai. We export to India, the United States and the Middle East (UAE, Saudi Arabia, Qatar and the wider GCC).

  1. 01Material grade or product family
  2. 02Outside diameter × wall thickness × length
  3. 03Quantity and destination country or region
  4. 04Applicable standard and inspection requirements
  5. 05Target delivery date and project notes
  • HQ

    Headquarters

    Lishui · China

    Zhejiang Junda Steel Pipe Manufacturing Co., Ltd.

  • WNZ

    Wenzhou Office

    Wenzhou · China

    Zhejiang Junda Steel Pipe Manufacturing Co., Ltd.

  • DXB

    Dubai Office

    Dubai · UAE

    Prime Junda Pipe Trading L.L.C