Manufacturer,Stockist and Exporter of A105 Oversized Blind Flange

A105 Oversized Blind Flange, A105 Oversized Blind Flange, A105 Heat Exchanger Flange, ANSI/ASME B16.47 Series B Blind Flange, a105 blind flange, A105 Marine Flange,A105 Oversized Blind Flange,ANSI B16.47 Series A Blind Flange

A105 Oversized Blind Flange is a critical component used to terminate or seal the ends of large-diameter piping systems, especially in high-pressure and high-temperature environments. Manufactured from ASTM A105 carbon steel, these flanges are designed with increased diameter and thickness to accommodate the structural demands of oversized pipelines and equipment. The oversized variant provides enhanced sealing strength, corrosion resistance (with coating), and the ability to withstand mechanical stress, making it ideal for use in oil refineries, petrochemical plants, power stations, and offshore platforms.

As a manufacturer, stockist, and exporter, suppliers of A105 Oversized Blind Flanges typically maintain a robust inventory of sizes ranging from 26 inches to 60 inches and beyond. These flanges are manufactured in pressure ratings from Class 150 up to Class 2500, and are produced in compliance with global standards such as ASME B16.47 Series A/B and API 6A. The forging process ensures uniform grain structure, superior strength, and reliability, even in extreme service conditions. Depending on the application, these flanges may feature Raised Face (RF), Flat Face (FF), or Ring Type Joint (RTJ) faces.

Global exporters of A105 Oversized Blind Flanges supply to key industrial regions such as Oman, Qatar, Saudi Arabia, UAE, and Kuwait, where large-scale infrastructure and energy projects rely on high-integrity piping components. Additionally, demand is strong in Spain, Germany, the USA, Canada, and across Africa, as industries there continue to invest in pipeline expansion, power generation, and water distribution systems. Exporters often provide material certifications (EN 10204 3.1/3.2), third-party inspection, and customized packaging for international logistics.

Oversized flanges are valued not only for their size but also for their mechanical strength and long-term durability. They offer a minimum tensile strength of 485 MPa and a yield strength of 250 MPa, with excellent elongation and hardness properties. These flanges are frequently coated with anti-corrosion finishes such as black paint, epoxy, or hot-dip galvanizing to extend service life, particularly in marine and chemically aggressive environments.

Specification of A105 Oversized Blind Flange

Specification	Details
Material Grade	ASTM A105 (Carbon Steel)
Flange Type	Oversized Blind Flange
Manufacturing Process	Forged
Size Range	26” to 60” (DN650 to DN1500) or as required
Pressure Ratings	Class 150, 300, 600, 900, 1500, 2500
Design Standards	ASME B16.47 Series A & B, ASME B16.5, API 6A
Face Type	RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)
Surface Finish	Serrated Finish, Stock Finish, Smooth Finish
Coating/Finish Options	Anti-rust Oil, Black Paint, Epoxy Coated, Hot-Dip Galvanized
Temperature Range	-29°C to 425°C (-20°F to 800°F)
Applications	Oil & Gas, Petrochemical, Refinery, Power Plants, Offshore, Water Treatment
Quality Certifications	EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001, PED compliant
Testing	Hydrostatic Test, Ultrasonic Test, Visual & Dimensional Inspection

Manufacturers ensure that A105 Oversized Blind Flanges undergo rigorous quality control, including dimensional checks, hydrostatic testing, and non-destructive testing (NDT) like ultrasonic or radiographic examination. Their adaptability and performance under pressure make them a reliable choice for pipeline shutdowns, maintenance, and future expansion points in large-scale projects.

A105 Oversized Blind Flange plays a vital role in large-diameter, high-demand piping systems around the world. With robust manufacturing processes, global compliance, and widespread export capabilities, these flanges are trusted by engineers and EPC contractors for safe, secure, and efficient system isolation across diverse industries and regions.

A105 Oversized Blind Flange Chemical Properties

Element	Composition (%)
Carbon (C)	≤ 0.35
Manganese (Mn)	0.60 – 1.05
Phosphorus (P)	≤ 0.035
Sulfur (S)	≤ 0.040
Silicon (Si)	0.10 – 0.35
Copper (Cu)	≤ 0.40 (if specified)
Nickel (Ni)	≤ 0.40 (if specified)
Chromium (Cr)	≤ 0.30 (if specified)
Molybdenum (Mo)	≤ 0.12 (if specified)
Vanadium (V)	≤ 0.08 (if specified)

A105 Oversized Blind Flange Mechanical Properties

Property	Value
Tensile Strength (min)	485 MPa (70 ksi)
Yield Strength (min)	250 MPa (36 ksi)
Elongation (min)	22% in 50 mm (2 in.)
Reduction of Area	30% (typical)
Hardness (max)	187 HBW (Brinell) or 91 HRB (Rockwell B)
Impact Testing	Not mandatory unless specified by purchaser
Temperature Range	Suitable for service from -29°C to 425°C (-20°F to 800°F)

Features of A105 Oversized Blind Flange

Healthy, non-toxic, and stain-free
High temperature and pressure resistance
Hot welding connection
Leak prevention
Excellent heat insulation
Lightweight and easy to transport
Smooth inner wall for reduced pressure loss
Low noise
Suitable for exposed or hidden installation
Chemical corrosion resistance

Available Types Of A105 Oversized Blind Flange

A105 Pressure Vessel Flange	Forged A105 Blind Flange
A105 Oversized Blind Flange	A105 RF Blind Flange
CS HEAVY BLRF FLANGE	ANSI B16.47 Series A Blind Flange
ANSI B16.47 Series B Blind Flange	MSS SP-44 A105 Blind Flange
A105 Schedule 160 Blind Flange	ANSI/ASME B16.5 Blind Flange
ANSI/ASME B16.47 Series A(MSS SP44) Blind Flanges	ANSI/ASME B16.47 Series B Blind Flange
carbon steel slip on flanges	Custom A105 Blind Flange
A105 Forged Oversized Flange	A105 XXS Blind Flange

Applications Industry

Pharmaceutical Equipment
Chemical Equipment
Sea Water Equipment
Heat Exchangers
Condensers
Pulp and Paper Industry

Off-Shore Oil Drilling Companies
Power Generation
Petrochemicals
Gas Processing
Specialty Chemicals
Pharmaceuticals

FAQs –A105 Oversized Blind Flange

1. What is an A105 Oversized Blind Flange?

A105 Oversized Blind Flange is a carbon steel blind flange manufactured as per ASTM A105 standards, designed with a larger diameter than standard sizes. It is primarily used to close oversized pipe ends, nozzles, or pressure vessel openings.

2.Where are A105 Oversized Blind Flanges commonly used?

These flanges are widely used in industries such as oil & gas, petrochemical, power generation, marine, and water treatment plants, especially where oversized pipeline systems or equipment require secure closure.

3. What are the advantages of using A105 Oversized Blind Flange?

The main benefits include high strength, excellent pressure handling capacity, durability under high temperatures, and suitability for large-diameter applications that demand strong sealing.

4. Can A105 Oversized Blind Flanges be customized?

Yes, they can be manufactured in customized dimensions, pressure ratings, facing types (RF, RTJ, FF), and coatings (such as galvanized or anti-rust coatings) to meet project-specific requirements.

People Searched For A105 Oversized Blind Flange:

Countries we have exported our products to:

Turkey, Thailand, Bulgaria, Serbia, Mexico, Estonia, Trinidad & Tobago,Tunisia, New Zealand, Indonesia, Puerto Rico, Ireland, India, Morocco, Brazil, Lebanon, Hong Kong, Jordan, Ukraine, Switzerland, Czech Republic, Lithuania, Sri Lanka, Greece, Taiwan, Zimbabwe, Algeria, Romania, Mexico, Ghana, Italy, Philippines, Spain, United Kingdom, Finland, Azerbaijan, Japan, Macau, Israel, Saudi Arabia, Kenya, Bhutan, Poland, Poland, Costa Rica, Kuwait, Singapore, Pakistan, France, Colombia, Tibet, Bolivia, Portugal, Iraq, Australia, Kazakhstan, Nepal, Mongolia, Gambia, Malaysia, Chile, Germany, Slovakia, China, Bahrain, Denmark, Angola, Afghanistan, Peru, Austria, Ecuador, Gabon, Croatia, South Africa, Sweden, Chile, Hungary, United Arab Emirates, Argentina, Bangladesh, Oman, Egypt, United States, Belgium, Canada, Namibia, Norway, Qatar, Belarus, Netherlands.

Cities we have supplied our products to:

Bengaluru, Vung Tau, Nashik, Jaipur, Navi Mumbai, La Victoria, Al Jubail, Noida, Granada, Doha, Dammam, Ernakulam, Chandigarh, Santiago, Melbourne, Surat, Nagpur, Ranchi, Kanpur, Jakarta, Ahvaz, Indore, Jamshedpur, Muscat, Rajkot, Lahore, Chiyoda, Milan, Hong Kong, Riyadh, Houston, Busan, Calgary, Madrid, Visakhapatnam, Atyrau, Bhopal, Algiers, Colombo, Kolkata, Petaling Jaya, Dallas, London, Cairo, Thiruvananthapuram, Caracas, Howrah, Moscow, Port-of-Spain, Baroda, Mexico City, Gurgaon, Singapore, Aberdeen, Coimbatore, Kuala Lumpur, Perth, Ahmedabad, New York, New Delhi, Manama, Abu Dhabi, Montreal, Jeddah, Pune, Vadodara, Kuwait City, Chennai, Geoje-si, Tehran, Mumbai, Hanoi, Karachi, Pimpri-Chinchwad, Thane, Haryana, Ulsan, Seoul, Dubai, Ho Chi Minh City, Toronto, Hyderabad, Los Angeles, Faridabad, Lagos, Sydney, Courbevoie, Bangkok, Bogota, Rio de Janeiro, Ankara, Al Khobar, Ludhiana, Istanbul, Gimhae-si, Brisbane, Edmonton, Sharjah, Secunderabad.