Weld Neck, Blind & Specialty Flanges — CL150 to CL2500, All Alloys
Warwick supplies weld neck, slip-on, blind, threaded, lap joint, orifice, and large-diameter flanges in carbon steel, alloy, stainless, duplex, and nickel alloy grades. Pressure classes 150 through 2500 to ASME B16.5 and B16.47.
Our flange inventory covers standard and specialty configurations for all process piping pressure classes. From carbon steel A105 weld necks in CL150 to high-alloy F91 blinds in CL2500, we supply the full range with certified mill test reports and heat traceability.
Specialty flanges including orifice flanges, spectacle blinds, spacers, and large-diameter flanges to ASME B16.47 Series A/B are available. All flanges are supplied with face finish documentation and dimensional certification per applicable ASME standards.
Flanges — Specifications & Grades
All materials supplied to ASTM, ASME, API, and applicable international standards. Applicable MTRs and material documentation provided per specification and purchase-order requirements.
| PRODUCT | SIZE RANGE |
|---|---|
| Weld Neck Flanges | 1/2" – 24" CL150–2500 |
| Slip-On Flanges | 1/2" – 24" CL150–600 |
| Blind Flanges | 1/2" – 24" CL150–2500 |
| Threaded Flanges | 1/2" – 4" CL150–2500 |
| Lap Joint Flanges | 1/2" – 24" CL150–600 |
| Large Diameter Flanges | 26" – 60" CL150–900 |
| Orifice Flanges | 1" – 16" CL300–2500 |
| Spectacle Blinds & Spacers | 1/2" – 24" CL150–2500 |
| Nickel Alloy Flanges | 1/2" – 12" CL150–2500 |
| Duplex Stainless Flanges | 1/2" – 12" CL150–2500 |
* Contact sales for custom grades, non-standard sizes, or expedited sourcing. MTRs and certifications available on request.
Who We Supply
Documentation Provided Per Specification
Mill test reports are reviewed and verified before shipment — not assembled after the fact. Heat numbers, certifications, and compliance documentation are retained for 10+ years. We supply to ASTM, ASME, API, and applicable international standards.
Submit Your Flanges Requirements
Upload your BOM, MTO, or specification sheet. Our sourcing team responds the same business day with pricing and availability.