Stainless Steel Forged Blind Flange
Stainless Steel Forged Blind Flange
Note: MOQ, pricing, lead time and payment terms may vary depending on product grade, specifications, order quantity and processing requirements. Please contact QueenMetal (ding@queenmetalgroup.com) for a product-specific quotation.
Product Introduction
Stainless Steel Forged Blind Flange is a solid flange component used to seal and isolate the end of piping systems, valves, and pressure equipment. Manufactured through forging and precision machining, it provides excellent mechanical strength, dimensional accuracy, and reliable sealing performance under demanding conditions. Stainless steel grades such as 304, 304L, 316, and 316L offer outstanding corrosion resistance and durability for various industrial environments. Blind flanges are widely used for pipeline shutdown, maintenance isolation, pressure testing, and future pipeline expansion applications. Custom sizes, pressure classes, standards, facing types, and machining requirements are available according to project specifications.
Specifications
| Item | Specification |
|---|---|
| Product Type | Stainless Steel Forged Blind Flange |
| Material | Stainless Steel |
| Common Grades | 304 / 304L / 316 / 316L / Other grades available upon request |
| Material Characteristics | Corrosion Resistance / High Strength / Pressure Resistance / Long Service Life |
| Manufacturing Process | Forged / Precision Machined |
| Standard | ASME / ANSI / DIN / EN / JIS / Other applicable standards |
| Flange Type | Blind Flange |
| Nominal Size | Various standard sizes / Customized |
| Pressure Rating | Class 150 / 300 / 600 / 900 / 1500 / 2500 or customized |
| Facing | RF / FF / RTJ / Other types according to requirements |
| Thickness | According to applicable standards / Customized |
| Bolt Hole | Standard drilling / Customized Bolt-Hole Pattern |
| Surface Finish | Machined / Mill Finish / Polished / Customized |
| Marking | Standard marking or customer requirements |
| Dimensions | According to ASME / ANSI / DIN / EN / JIS standards or customer drawings |
| Tolerance | According to applicable standards or customer requirements |
| Processing | Forging / CNC Machining / Drilling / Cutting / Polishing |
| Customization | Grade / Size / Thickness / Pressure Rating / Facing / Bolt Holes / Marking / Machining |
Need a Customized Solution?
If you cannot find a stainless steel forged blind flange for your project, please contact Queen Metal. We provide customized solutions based on your required grade, dimensions, standard, surface finish, end treatment, and application.
Send us your specifications, technical requirements, drawings, or parameter files, and our team will provide a suitable quotation and supply solution.
Email: ding@queenmetal.com
Applications & Industries
| Industry | Typical Applications |
|---|---|
| Oil & Gas | Pipeline isolation, pressure testing and maintenance operations |
| Petrochemical | Process pipelines, pressure equipment and shutdown systems |
| Chemical Processing | Corrosive fluid systems and equipment isolation |
| Water Treatment | Pipeline closure, pumps and filtration systems |
| Power Generation | Cooling systems, steam pipelines and industrial equipment |
| Marine & Offshore | Corrosion-resistant pipeline isolation systems |
| Food & Beverage | Stainless steel process piping and equipment systems |
| General Industrial | Valves, tanks, pressure vessels and piping connections |
Quality Assurance & Testing
| Inspection / Testing | Details |
|---|---|
| Material Verification | Chemical composition verification according to applicable standards |
| PMI Testing | Positive Material Identification available according to requirements |
| Dimensional Inspection | Outer diameter, thickness, bolt-hole position, PCD and overall dimensions |
| Surface Inspection | Inspection of surface condition and machining quality |
| Mechanical Testing | Tensile strength and yield strength testing where required |
| Hardness Testing | Available according to material grade and order requirements |
| Forging Inspection | Inspection of forging integrity, structure and dimensional consistency |
| Machining Inspection | Precision verification of thickness, facing and bolt-hole accuracy |
| Pressure / Leakage Testing | Available according to application and project requirements |
| MTC | Material Test Certificate available according to order requirements |
| Third-Party Inspection | SGS / BV or other third-party inspection available upon request |
Packaging & Logistics
| Item | Details |
|---|---|
| Packaging Standard | Export-standard stainless steel flange packaging |
| Surface Protection | Protective film or suitable surface protection where applicable |
| Individual Protection | Each flange protected against scratching, impact and surface damage during transportation |
| Bundling | Bundled or separated according to flange size and order requirements |
| External Packaging | Waterproof paper / Plastic wrapping where applicable |
| Wooden Packaging | Wooden cases or pallets available according to product size and shipping requirements |
| Shipping Method | Container / Bulk shipment |
| Transportation Protection | Suitable protection for long-distance ocean transportation |
| MOQ | According to grade, size, standard and order requirements |
| Lead Time | Confirmed according to material availability, processing and order quantity |
| Customized Logistics | Packaging, marking and shipping arrangements available according to customer requirements |
FAQS
1. What is a Stainless Steel Forged Blind Flange?
A Stainless Steel Forged Blind Flange is a solid flange without a center opening used to close or isolate the end of a pipe, valve, or pressure vessel connection.
2. What are the main advantages of a blind flange?
Blind flanges provide reliable pipeline sealing, easy maintenance isolation, pressure testing capability, and long-term corrosion resistance when suitable stainless steel materials are selected.
3. What stainless steel grades are commonly available?
Common grades include 304, 304L, 316, and 316L stainless steel. Other grades can be supplied according to application requirements.
4. Where are blind flanges commonly used?
They are widely used in oil & gas, petrochemical, chemical processing, water treatment, power generation, marine, and industrial piping systems.
5. Can Queen Metal customize stainless steel blind flanges?
Yes. Queen Metal provides customized blind flange solutions based on required grade, size, thickness, pressure rating, facing type, bolt-hole pattern, standard, machining requirements, and application.
Request a Quote Now
Tell us your requirements, including product type, specifications and quantity. Our professional team will provide a fast response and customized steel solutions.
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