Super Duplex Stainless Steel Pipe Caps Shipped to Singapore

Haihao Group has recently completed the shipment of super duplex stainless steel pipe caps to a valued customer in Singapore. The order includes threaded pipe caps, socket weld pipe caps, and large-diameter butt weld pipe caps, manufactured in full compliance with ASME B16.11 and ASME B16.9 standards.

These products are designed for high-pressure piping systems and corrosion-critical environments, commonly found in offshore oil & gas, petrochemical, and marine applications.

Product Scope and Specifications

Forged Threaded & Socket Weld Pipe Caps (ASME B16.11)

The shipment includes multiple sizes of 3000# pressure-rated forged pipe caps, supplied in ASTM A182 Grade F53 super duplex stainless steel, as approved by the customer.

Product types:

• NPT threaded pipe caps (SE)
• Socket weld pipe caps (SWE)

Key specifications:

• Sizes: 3/4″, 1″, 1 1/2″
• Pressure class: 3000#
• Standard: ASME B16.11
• Material: ASTM A182 GR. F53 (Super Duplex Stainless Steel)

These forged fittings offer excellent mechanical strength, high pitting resistance, and long service life under high pressure.

Large Diameter Butt Weld Pipe Cap (ASME B16.9)

In addition to forged caps, the order includes a 24″ butt weld pipe cap, manufactured from ASTM A815 super duplex stainless steel.

Technical details:

• Size: 24″ × SCH 40S
• Standard: ASME B16.9
• Material: ASTM A815 UNS S32750
• Manufacturing: Welded construction with 100% radiographic testing (RT)

This pipe cap is suitable for large-diameter pipeline terminations where strength, toughness, and corrosion resistance are essential.

Material Advantages of Super Duplex Stainless Steel

Both ASTM A182 F53 and ASTM A815 UNS S32750 are widely used super duplex grades known for:

• High yield and tensile strength
• Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking
• Reliable performance in chloride-rich and offshore environments
• Long service life with reduced maintenance costs

These properties make super duplex pipe caps an ideal choice for demanding industrial systems.

Quality Control and Delivery Assurance

All pipe caps supplied by Haihao Group are produced under strict quality control procedures, including:

• Dimensional inspection
• Material verification
• Pressure rating compliance
• Non-destructive testing where required

Each product is clearly marked and securely packed to ensure safe delivery to Singapore and smooth installation on site.

Applications

The super duplex stainless steel pipe caps delivered to Singapore are commonly used in:

• Offshore oil and gas pipelines
• Petrochemical processing units
• Marine and shipbuilding systems
• High-pressure industrial piping networks

Haihao Group – Trusted Supplier of Pipe Caps

Haihao Group is an experienced manufacturer and exporter of forged fittings, pipe caps, and stainless steel piping components. With long-term export experience to Southeast Asia, including Singapore, we provide reliable solutions that meet international standards and project-specific requirements.