Haihao Group Ships ASTM A182 F321 Flanges and Ceramic Fiber Gaskets to Indonesia

Haihao Group has successfully completed the production and shipment of a batch of ASTM A182 F321 flange products and ceramic fiber gaskets for a valued customer in Indonesia. The order includes weld neck flanges, blind flanges, and matching sealing gaskets, providing a complete connection and sealing solution for industrial piping systems.

Manufactured in accordance with internationally recognized ASME standards, every product underwent strict quality inspection before shipment. Protective caps were installed on all flange sealing faces, and the entire order was packed in sturdy wooden crates to ensure safe transportation to the customer’s project site.

Order Overview

Product	Size	Pressure Class	Material	Standard
Weld Neck Flange RF	2″ STD	Class 150	ASTM A182 F321	ASME B16.5
Blind Flange RF	2″	Class 150	ASTM A182 F321	ASME B16.5
Ceramic Fiber Gasket	2″	Class 150	Ceramic Fiber	ASME B16.21

Special packaging requirements:

• Protective caps installed on all flange faces
• Export-grade wooden crate packaging
• Surface protection for long-distance transportation

ASTM A182 F321 Flange for High-Temperature Service

The ASTM A182 F321 flange supplied for this Indonesian project is manufactured from stabilized austenitic stainless steel containing titanium. Compared with conventional 304 stainless steel, F321 offers improved resistance to intergranular corrosion after welding and maintains excellent mechanical properties in elevated-temperature environments.

Because of these advantages, ASTM A182 F321 flange products are widely used in:

• Petrochemical plants
• Oil and gas facilities
• Heat exchanger systems
• Power generation projects
• High-temperature process pipelines
• Industrial furnace equipment

For projects where welding is required, F321 provides stable long-term performance while reducing the risk of sensitization.

Complete Flange and Gasket Solution

Instead of supplying flanges alone, Haihao Group delivered a complete sealing package that included matching ceramic fiber gaskets manufactured according to ASME B16.21.

The ceramic fiber gasket offers several practical benefits:

• Excellent high-temperature resistance
• Reliable sealing performance
• Low thermal conductivity
• Good chemical stability
• Suitable for industrial flange connections

Providing both flanges and gaskets from a single supplier helps simplify procurement, ensures dimensional compatibility, and improves installation efficiency at the project site.

Strict Manufacturing and Inspection

Every ASTM A182 F321 flange produced by Haihao Group follows comprehensive quality control procedures throughout manufacturing.

Inspection includes:

• Raw material verification
• Chemical composition confirmation
• Dimensional inspection
• Machining accuracy verification
• RF sealing face inspection
• Visual surface examination
• Final packaging inspection

To prevent damage during transportation, protective caps were installed on the flange faces immediately after inspection. The products were then packed in durable export wooden crates according to the customer’s requirements.

Reliable Stainless Steel Pipeline Components

Haihao Group supplies stainless steel flanges and pipeline accessories in accordance with international standards, including ASME, ASTM, EN, DIN, JIS, API, and MSS specifications.

Besides the ASTM A182 F321 flange, we also manufacture:

• Weld neck flanges
• Blind flanges
• Slip-on flanges
• Socket weld flanges
• Threaded flanges
• Lap joint flanges
• Stainless steel pipe fittings
• Forged fittings
• Industrial gaskets

Our products are exported to Southeast Asia, the Middle East, Europe, Africa, and South America, supporting projects across the energy, chemical, marine, water treatment, and manufacturing industries.

Supporting Industrial Projects in Indonesia

Indonesia continues to invest in refinery upgrades, industrial manufacturing, energy infrastructure, and process facilities. Reliable piping components play an important role in maintaining long-term operational safety and reducing maintenance costs.

This shipment demonstrates Haihao Group’s ability to deliver customized piping solutions with strict quality management, secure export packaging, and dependable international logistics.

Whether customers require stainless steel flanges, forged fittings, pipe fittings, or complete pipeline connection solutions, Haihao Group offers professional engineering support from quotation to final delivery.

For your next industrial piping project, our technical team is ready to provide product recommendations, material selection assistance, and competitive quotations.

Why Choose Haihao Group?

• Over 40 years of manufacturing experience
• Full range of ASME, ASTM, EN, DIN, API, and MSS products
• Professional export packaging with protective caps and wooden crates
• Strict quality inspection before shipment
• Customized manufacturing according to project requirements
• Global supply experience for oil & gas, petrochemical, and industrial applications