Alloy Steel Flange Cover
Standard: ANSI, bs, DIN, JIS
Technics: Forged
Nominal Diameter: 1/2’’—72’’inch DN15mm-DN1800mm
Surface Treatment: Rust-proof oil, black painted or as per customers’ requirement
Application: Chemical, petroleum, electric power, water conservancy, pharmaceutical, boiler, ship, etc
Two Factories & 30 titanium metal production lines
21 years of experience in titanium metal manufacturing
Systerm quality with ISO / SGS / TUV quality control.
Delivery term: DHL, FEDEX, Air freight,Sea freight
Annual production: 800 tons
Alloy Steel Flange Cover
XI'AN LINHUI IMPORT AND EXPORT Co., LTD. manufactures premium Alloy Steel Flange Cover products compliant with ANSI, BS, DIN, and JIS standards. Our forged flanges range from 1/2" to 72" (DN15mm–DN1800mm) with surface treatments including rust-proof oil and black paint.
With two factories operating 30 production lines and 21 years of titanium metal manufacturing experience, we deliver 800 tons annually. Quality is guaranteed through ISO/SGS/TUV certifications. Our products serve chemical, petroleum, power generation, water conservancy, pharmaceutical, boiler, and shipbuilding industries. Fast delivery via DHL, FEDEX, air, or sea freight ensures your project stays on schedule.
Key Features & Benefits
Under high pressure, our flange offers outstanding sealing performance. When compared to cast alternatives, the forged construction guarantees better structural integrity.
In challenging conditions, corrosion-resistant surface treatments prolong service life. You gain from fewer replacement cycles and lower maintenance expenses. Our flanges comply with numerous international standards, making it easier for you to buy goods in various locations.
Alloy Steel Flange Cover Specifications
| Parameter | Details |
|---|---|
| Standard | ANSI, BS, DIN, JIS |
| Technics | Forged |
| Nominal Diameter | 1/2’’—72’’ inch (DN15mm-DN1800mm) |
| Surface Treatment | Rust-proof oil, black painted, or as per request |
| Application | Chemical, petroleum, electric power, water conservancy, pharmaceutical, boiler, ship, etc. |
Manufacturing Process
To shape raw alloy steel billets at regulated temperatures, we use hot forging procedures. This procedure removes internal flaws and improves grain structure.
To maximize mechanical qualities, heat treatment comes after forging. While preserving ductility, normalizing and tempering increase strength. Dimensional correctness within strict tolerances is guaranteed by precision machining.
Surface treatments are applied in accordance with your environmental specifications. Before the final inspection, every alloy steel flange cover is thoroughly deburred and finished.
Quality Inspection
Every product receives 100% visual inspection for surface defects. Dimensional verification uses calibrated instruments traceable to international standards.
Non-destructive testing includes ultrasonic and magnetic particle inspection. Mechanical property testing confirms tensile strength and hardness values. Chemical composition analysis via spectroscopy ensures material compliance.
We provide EN 10204 3.1 or 3.2 certificates with full traceability documentation. Third-party inspections by SGS, TUV, or other agencies are welcomed.
Applications
Our flanges excel in chemical processing plants handling corrosive media. Petroleum refineries use them for pipeline connections under high pressure and temperature.
Power generation facilities rely on their durability in steam and cooling systems. Water treatment plants benefit from corrosion resistance in chlorinated environments. Pharmaceutical manufacturers choose them for sanitary piping systems.
Boiler applications demand their high-temperature stability. Shipbuilding projects require their marine-grade corrosion protection.
Export Markets
We've shipped to over 60 countries across North America, South America, and the Middle East. African markets value our competitive pricing and reliable quality.
CIS countries and Southeast Asian clients trust our technical support. Long-term partnerships with CEFC, PTT, PDVSA, and PETRONAS validate our capabilities.
Why Choose Us
Our 21 years of manufacturing experience guarantees proven reliability. Two dedicated factories with 30 production lines ensure consistent supply capacity.
ISO/SGS/TUV quality systems provide certified assurance. Stock inventory enables 3–7 day delivery for urgent projects. Engineering support teams assist with material selection and specification clarification.
Competitive factory-direct pricing eliminates middleman costs. Multilingual customer service facilitates smooth communication throughout your project lifecycle.
Packaging & Shipping
Individual flanges are wrapped in plastic film and packed in plywood cases. Steel banding secures large shipments for sea freight transport.
We arrange DHL and FEDEX for small urgent orders. Air freight suits medium-volume time-sensitive deliveries. Sea freight offers economical solutions for bulk purchases.
Custom packaging meets your specific requirements. All shipments include detailed packing lists and quality certificates.
FAQ
Q: What's your minimum order quantity?
A: We support trial orders starting from 100 kg for stock items.
Q: Can you provide material test reports?
A: Yes, EN 10204 3.1 certificates accompany every shipment. Third-party inspection is available upon request.
Q: How quickly can you deliver?
A: Stock items ship within 3–7 days. Standard production takes 15–25 days depending on quantity and specifications.
Q: Do you offer custom dimensions?
A: Absolutely. Our engineering team reviews drawings within 24 hours and produces custom sizes from DN15mm to DN1800mm.
Q: What payment terms do you accept?
A: We work with T/T, L/C, and other internationally recognized payment methods.
Request a Quote
Ready to source reliable Alloy Steel Flange Cover for your project? Contact our team at linhui@lhtitanium.com with your specifications. We'll respond within 4 hours with competitive pricing and technical recommendations tailored to your application requirements.
