Delivery of super-duplex paddle blanks, spacers & figure 8 blanks to Singapore
Over the past month, Haihao Group completed a specialized shipment of RTJ paddle blank flanges, paddle spacers, and figure 8 blanks for a major Singapore process-plant project. Our team delivered seven unique items—ranging from 2-inch inserts to 12-inch blanks—each engineered to handle pressures up to 10 000 psi while meeting the most stringent NACE and ISO standards.
Super duplex paddle blanks spacers and figure-8 blanks ready for packing and delivery
Order Breakdown & Technical Specs
| Product Type | Size | Pressure | Required Thickness (mm) | Standard | Material |
|---|---|---|---|---|---|
| Paddle Blank RTJ | 1-13/16″ | 10 000 psi | 19 | API 6A / ASME B16.48 / MSS SP-6 | Super-Duplex UNS S32760 (F55) |
| Figure-8 Blank RTJ | 2″ | 2500 # | 41.1 | ASME B16.5 / MSS SP-6 | Super-Duplex UNS S32760 |
| Paddle Blank RTJ | 9″ | 10 000 psi | 69 | API 6A / ASME B16.48 / MSS SP-6 | Super-Duplex UNS S32760 |
| Paddle Spacer RTJ | 5-1/8″ | 10 000 psi | 42 | API 6A / ASME B16.48 / MSS SP-6 | Super-Duplex UNS S32760 |
| Paddle Spacer RTJ | 4-1/16″ | 10 000 psi | 34 | API 6A / ASME B16.48 / MSS SP-6 | Super-Duplex UNS S32760 |
| Paddle Blank RTJ | 2-9/16″ | 10 000 psi | 24 | API 6A / ASME B16.48 / MSS SP-6 | Super-Duplex UNS S32760 |
| Paddle Spacer RTJ | 12″ | 2500 # | 133.4 | ASME B16.5 / MSS SP-6 | 316 Stainless (UNS S31600) |
10000 PSI PADDLE BLANK SUPER DUPLEXSTAINLESS STEEL ASTM A240 UNS S32760 API 6A RTJ Produced by Haihao Group
Why Super-Duplex for Singapore’s Harsh Conditions?
- Exceptional Corrosion Resistance
UNS S32760 (F55 super-duplex) combines over 25% chromium and 4% molybdenum for superb pitting/crevice corrosion performance in chloride-rich seawater and chemical environments. - High Strength at Ultra-High Pressures
Yield strengths nearly double traditional 316 stainless—critical for 10 000 psi service where standard stainless steels could deform. - Sour Gas Compatibility
Certified to NACE MR0175 / ISO 15156, ensuring safe operation in H₂S-containing media.
FIGURE-8 BLANK SUPER DUPLEX STAINLESS STEEL ASTM A240 UNS S32760 ASME B16.5 Produced By Haihao Group
Surface Finish & NACE Compliance
- 63 µm Maximum Roughness on all RTJ sealing faces, per MSS SP-6.
- Edge Radii Control: R1 for ≤6″, R2 for >8″, avoiding stress concentrators.
- Paddle geometry precisely machined to maintain API 6A type 6BX groove dimensions.
Rigorous Quality Assurance
Every component underwent:
- Dimensional Verification against ASME B16.5/B16.48 tables.
- Visual & PT Inspection to detect surface or subsurface defects.
- Material Test Certificates (EN 10204 3.1) confirming chemical and mechanical compliance.
- Hardness & Microstructure Checks to verify correct duplex phase balance (35–55% ferrite).
- Third-Party Witness upon request, streamlining client audits.
PADDLE SPACER SUPER DUPLEX STAINLESS STEEL ASTM A240 UNS S32760 Produced By Haihao Group
Secure Packaging & On-Time Delivery
To protect these precision parts:
- Individual Anti-Corrosion Wrapping plus desiccants.
- Cushioned in Wooden Crates rated for export.
- Labeled by Size & Pressure for swift unloading.
- Shipments departed Haihao’s yard within the committed 15‐day lead time.
Applications & Client Benefits
These paddle blanks and spacers will form part of:
- High-pressure subsea manifolds
- Offshore platform piping skids
- Specialty chemical injection lines
Customer Advantages: zero rework in the field, assured RTJ sealing under 10 000 psi, and decades of maintenance-free service.
If you need paddle blanks,spacers or figure 8 blanks for your project,please feel free to contact us,email: sales@haihaogroup.com