Cangzhou jinmao pipe manufacturing co., ltd
中文版 English

Professional steel pipe manufacturer and supplier
Contact Us
Cangzhou Jinmao Pipe Manufacturing Co., Ltd
Factory address: Industry development zone, Yanshan county, Cangzhou city, China. Post code: 061300

Cangzhou City International Sales
Tell: +86-317-5296389
Fax: +86-317-5296389

Shanghai City International Sales
Tell: +86-21-50828270
Fax: +86-21-50828270
Home > Products > Other Products > Flanges >
Welded Neck Flange
Welded Neck Flange
A weld neck flange is a type of industrial flange designed to transfer stresses to the pipe to reduce high stress concentration at the base of the flange. Compared with other types, weld neck flanges are known for their tapered hub and gentle transition from flange thickness to pipe wall thickness, they are deformation-resistant, and are normally used for high pressure, high or low temperature conditions. 

Specification of WN Flange
Standard: ANSI B16.5, ASME B16.47, EN1092, JIS B2220
Steel Grade:
Carbon steel: ASTM A105N
    Alloy steel: ASTM A182 F1-F2-F5-F9-F11-F12-F22-F91
    Stainless steel: ASTM A182 Cr. F304-F304H-F304L-F310-F316-F316L
    Low temperature steel: ASTM A350-LF2
High strength steel: ASTM A694 F42-F46-F50-F56-F60-F65-F70
    OD: 1/2”-60”/DN15-DN1500
    Pressure: American series: Class150-Class2500,
Pressure European series: PN2.5-PN400
Quality assurance
Long years seamless steel pipe and ERW/HFW steel pipe manufacturing experience, has advanced production equipments, perfect technology, full inspection facilities, ISO9001, 14001, 18001 management system certificate.
1. Inquiry evaluation
All technical data of each inquiry must be evaluated and confirmation by Jinmao production technical department, we can confirm that all the technical data can satisfy the client`s requirement and related standard, even if there is some special requirement from end user, we can also try our best to meet the requirement.
2. On-line production Supervision
Online production supervision can cover the entire production process, in accordance with the contract requirements and technical specifications. The supervision is begin from the re-examination of raw materials, process assessment, the production of internal control, test items, mark, packaging, and all the other aspects of a full range of production.
3. Final Product Inspection
Detection of the product in accordance with international and national standards, including: the physical performance testing, chemical analysis, nondestructive testing, reliability testing and packing.
4. Logistics Survey
Monitor product handling, storage, strapping, transport loading and other logistics chain.
Order information
Minimum order: Negotiate
Supply ability: 10,000 pcs per month
Packing: Wood case, Wooden Pallets or as customer’s requirement
Delivery time: 7 days to 30 days as per order details
Loading port: China seaport
Payment term: T/T or LC at sight
Cangzhou jinmao pipe manufacturing co., ltd is a professional steel pipe manufacturer in China, Has advanced technical equipment, perfect technology, full inspection facilities, ISO9001, 14001, 18001 management system certificate, professional produce seamless steel pipe, ERW/HFW Steel pipe, galvanized steel pipe, meanwhile for satisfying our clients` all kinds of requirement, we can also supply SAW steel pipe, stainless steel pipe, steel pipe fittings. Our products have been exported to more than ten countries, such as USA, EU, Australia Canada, India, Southeast Asia, The Middle east, Africa, South America. We will continue to provide the best quality, the most competitive price, the best service to our customers. We are looking forward to your long-term friendly cooperation to achieve common development and mutual benefit.
"Integrity, Efficiency, Win-Win cooperation" being our values.
Welcome to contact us for cooperation to create values!
Inquiry Form
*Your Email:
Product Name:
Your Name:
Home | About us | Products | Facilities & Process | Certificates | Company news | Contact us
Cangzhou jinmao pipe manufacturing co., ltd Tell: +86-317-5296389 Fax: +86-317-5296389 Email:
We will reply you soon! Thanks!
*Your Email
Product Name
Your Name