F304 Stainless Steel CL300 RF Plate Flange High Pressure Heavy Duty Petrochemical Pipeline Fitting

ANSI B16.5 F304 CL300 RF Plate Flange is a heavy-duty high-pressure American standard flat weld flange with CL300 (5.17MPa) ultra-high pressure rating, specially developed for petrochemical high-pressure natural gas, heavy oil and high-pressure process fluid pipelines. Compared with CL150 plate flanges, it adopts super thick closed die forging structure, with significantly improved structural rigidity, pressure resistance and impact resistance, adapting to heavy-load high-pressure oil and gas harsh working conditions.

The product undergoes integral stress relief heat treatment to completely eliminate forging residual stress, ensuring stable plate size and no deformation after long-term high-pressure operation. The super thick plate body enhances shear resistance and pressure bearing capacity, avoiding structural damage and connection failure caused by high-pressure medium impact. Reinforced oil-proof anti-corrosion coating resists long-term high-pressure oil medium soaking and scouring, maintaining stable sealing performance in heavy-duty high-pressure petrochemical environments.

Core Selling Points

1. CL300 ultra-high pressure resistance, withstand 5.17MPa heavy pressure load;

2. Super thick closed forging structure, high rigidity and strong impact resistance;

3. Professional stress relief heat treatment, zero deformation under long-term high-pressure service;

4. Thickened plate anti-breakage design, high safety factor for high-pressure oil and gas pipelines;

5. Reinforced oil-proof anti-corrosion layer, stable performance for high-pressure oil medium;

6. Full ANSI B16.5 standard, perfect matching for heavy-duty petrochemical projects;

7. Excellent structural stability, resist high-pressure pipeline vibration and pressure surge.

Full Available Materials: F304, F304L, F316, F316L high-pressure dedicated stainless steel

Applicable Industries: High-pressure natural gas transmission pipelines, heavy oil processing pipelines, petrochemical high-pressure process systems, offshore oilfield auxiliary high-pressure piping, energy heavy-duty pipeline projects

Why Choose Us

We are a professional manufacturer of American standard high-pressure heavy-duty flanges, equipped with dedicated high-pressure forging and heat treatment production lines. All CL300 products pass strict hydraulic burst test and ultrasonic flaw detection to eliminate internal defects. Complete ANSI standard export certification and MTC material reports are provided. We support large-scale heavy-duty petrochemical project customization, with stable batch supply capacity and professional after-sales warranty for high-pressure working conditions.

Customization Capabilities (8 Items)

1. CL300/CL600 ultra-high pressure structural thickening and reinforcement;

2. High-pressure oil medium anti-impact and anti-corrosion customization;

3. Stress relief heat treatment for high-pressure stable operation;

4. ANSI ultra-high pressure non-standard size one-to-one processing;

5. High-pressure anti-wear laser marking and permanent engraving;

6. Heavy-duty anti-vibration and anti-pressure structural optimization;

7. High-pressure project reinforced moisture-proof export packaging;

8. Custom third-party high-pressure burst test and inspection report.

FAQ:1:How long is the custom lead time for stainless steel flanges in Wenzhou?

— 8 to 10 working days

2:What is the fastest delivery time?

— 3 working days

3:Do you support non-standard custom flanges?

— Yes, we do.

4:Can you process special sizes?

— Yes. Max processing size: 4000 mm, Min processing size: 30 mm.

5:Do you have stainless steel flanges of standard sizes in stock?

— Yes.

6:Can we customize flanges based on customer drawings or samples?

— Yes.

7:Will material test certificates and inspection reports be provided for the purchased flanges?

— Yes, they will.

8:Is there a quality warranty for the flange products?

— Yes.

9:How to handle quality defects if they occur?

— Product return and exchange available.

10: What is the difference between CL150 and CL300 plate flanges?

—CL300 has higher pressure resistance (5.17MPa), super thick forging structure and stronger impact resistance, suitable for high-pressure heavy-duty oil and gas pipelines, while CL150 is for conventional medium-pressure pipelines.