Haihao Group Supplies ASTM A240 S32760 Paddle Blank and Paddle Spacer for Singapore Project
Haihao Group has successfully manufactured and delivered a batch of ASTM A240 S32760 paddle blank products and matching paddle spacers for a customer project in Singapore. The order includes 8-inch and 10-inch paddle blanks and paddle spacers designed according to ASME B16.48 requirements, using UNS S32760/F55 super duplex stainless steel.
These products are widely used in pipeline isolation systems where high strength, corrosion resistance, and reliable sealing performance are required. For demanding applications such as oil & gas, offshore facilities, and sour service environments, Haihao Group provides customized flange-related products with strict material control and inspection procedures.
Product Specification
| Product | Size | Material | Standard |
| Paddle Blank | 8″ | A240 UNS S32760 / F55 | ASME B16.48, NACE MR0175 / ISO 15156 |
| Paddle Spacer | 8″ | A240 UNS S32760 / F55 | ASME B16.48, NACE MR0175 / ISO 15156 |
| Paddle Blank | 10″ | A240 UNS S32760 / F55 | ASME B16.48, NACE MR0175 / ISO 15156 |
| Paddle Spacer | 10″ | A240 UNS S32760 / F55 | ASME B16.48, NACE MR0175 / ISO 15156 |
Super Duplex Stainless Steel for Severe Service Conditions
The supplied products are manufactured from UNS S32760/F55 super duplex stainless steel, a material grade known for its excellent combination of mechanical strength and corrosion resistance.
Compared with conventional stainless steel grades, S32760 provides improved resistance against:
- Chloride stress corrosion cracking
- Pitting corrosion
- Crevice corrosion
- Sour service environments containing hydrogen sulfide
The ASTM A240 S32760 paddle blank supplied by Haihao Group was produced with controlled ferrite content between 40% and 60%, ensuring balanced duplex microstructure and stable mechanical performance.
ASTM A240 S32760 F55 super duplex paddle blank and paddle spacer manufactured by Haihao Group according to ASME B16.48
Designed for ASME B16.48 Pipeline Isolation Applications
Paddle blanks and paddle spacers are important components used together in pipeline isolation systems. The paddle blank provides positive isolation, while the spacer allows normal pipeline operation when isolation is not required.
The Singapore customer’s order was manufactured according to:
- ASME B16.48 Line Blanks
- ASTM A240 Material Specification
- NACE MR0175 / ISO 15156 Sour Service Requirements
The ASTM A240 S32760 paddle blank offers reliable performance under high-pressure operating conditions, especially where pipeline safety and material durability are critical.
Low Temperature Impact Performance and Quality Control
To meet the customer’s special technical requirements, Haihao Group ensured that the products maintained excellent low-temperature toughness.
Inspection requirements included:
- Ferrite content verification
- Mechanical performance confirmation
- Low temperature impact testing
- Material traceability inspection
The products achieved:
- Ferrite content: 40–60%
- Impact temperature: -46℃
- Average impact energy: 45J
- Minimum single impact energy: 35J
These inspection requirements help ensure that every ASTM A240 S32760 paddle blank can perform reliably in harsh operating environments.
Haihao Group — Reliable Supplier of Super Duplex Pipeline Products
With extensive experience in manufacturing flanges, pipe fittings, line blinds, and customized pressure components, Haihao Group supports global customers with products manufactured according to international standards including ASME, ASTM, EN, DIN, and API.
From material selection to final inspection, Haihao Group focuses on quality control, documentation, and customer-specific requirements. The successful delivery of this Singapore order demonstrates our capability in supplying high-performance super duplex stainless steel products for critical pipeline applications.
For projects requiring ASTM A240 S32760 paddle blank, super duplex line blinds, or customized ASME B16.48 products, Haihao Group provides professional manufacturing solutions and technical support.