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Manufacturer,Stockist and Exporter of Steel Blind Flange
Steel Blind Flange Dimensions
Home Products Steel Blind Flange

Manufacturer,Stockist and Exporter of Steel Blind Flange

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

Raj Bhoomi Engineers is a leading manufacturer, stockist, and exporter of Steel Blind Flange, offering a comprehensive range of high-quality flanges designed for critical applications in industrial piping systems. Manufactured using various steel grades such as carbon steel (ASTM A105, A350 LF2), stainless steel (A182 F304/F316), and alloy steel, these blind flanges are precision-engineered to meet global standards. Raj Bhoomi Engineers has established a strong international presence, regularly exporting to Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada, and several regions in Africa and worldwide.

Steel Blind Flange are primarily used to seal off the ends of piping systems, valves, or pressure vessels. They are essential for facilitating maintenance, inspection, or pressure testing without dismantling the full pipeline. Raj Bhoomi Engineers manufactures these flanges in accordance with ASME B16.5, B16.47 Series A & B, DIN, BS, and EN standards, providing pressure ratings from Class 150 to Class 2500, and sizes ranging from ½” to 72” and above. These flanges are available in Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) configurations to meet specific sealing and application requirements.

Steel Blind Flange

With a commitment to dimensional accuracy, material integrity, and long-term durability, Raj Bhoomi Engineers ensures each Steel Blind Flange undergoes rigorous quality control testing. This includes hydrostatic tests, ultrasonic examination, PMI testing, and visual inspections. Every product is delivered with full traceability and certification, including EN 10204 3.1/3.2 Material Test Certificates, ensuring global compliance and customer assurance.

Raj Bhoomi Engineers supports diverse industrial sectors such as oil & gas, petrochemicals, water treatment, power generation, marine, and infrastructure, supplying Steel Blind Flange that can withstand extreme pressures and temperatures. Their ability to offer custom manufacturing and rapid delivery ensures that both standard and project-specific demands are met efficiently, even in time-critical situations. Their robust stockholding further supports urgent international orders, making them a reliable supply chain partner.

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Specification of Steel Blind Flange

Specification Details
Product Steel Blind Flange
Manufactured By Raj Bhoomi Engineers
Material Grades ASTM A105, ASTM A350 LF2, ASTM A694 F42/F52/F60/F65/F70
Types Available Weld Neck (WN), Blind (BL), Slip-On (SO), Socket Weld (SW), Threaded (TH), Lap Joint (LJ), Orifice Flange
Standard Specifications ASME B16.5, ASME B16.47, BS 4504, EN 1092-1, MSS SP-44, API 605
Size Range ½” to 60” (DN15 to DN1500)
Pressure Ratings Class 150, 300, 400, 600, 900, 1500, 2500 / PN 6 to PN 64
Face Types Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Connection Type Bolted flange connections (for pipe-to-pipe and equipment connections)
Temperature Range -46°C to 425°C (varies by grade and pressure class)
Manufacturing Method Forged / Rolled / Machined
Applications Oil & Gas, Petrochemicals, Power Plants, Refineries, Marine, Water Systems
Coating Options Anti-rust oil, Black Paint, Hot-Dip Galvanized, Custom coatings available
Testing & Certification Hydro Test, PMI Test, UT/MPI Testing, EN 10204 3.1 / 3.2 Certification
Compliance Standards NACE MR0175, ISO, PED (upon request)


Additionally, the company’s experienced engineering and export team provides valuable technical consultation and logistical support, ensuring clients receive the right flanges for their applications, complete with proper documentation and on-time delivery. Whether for a refinery expansion in the Middle East, a pipeline repair in North America, or an infrastructure project in Africa, Raj Bhoomi Engineers delivers high-performance Steel Blind Flange trusted by engineers and project managers worldwide.
Raj Bhoomi Engineers is a globally trusted source for Steel Blind Flange, known for its exceptional manufacturing standards, comprehensive inventory, and dependable global export network. Their products ensure secure, leak-proof performance across a wide range of industries and environments, backed by decades of engineering excellence and customer satisfaction.

Steel Blind Flange Chemical Properties

Element ASTM A105 (% max) ASTM A350 LF2 (% max) ASTM A694 F60 (% max)
Carbon (C) 0.35 0.30 0.26
Manganese (Mn) 0.60 – 1.05 0.60 – 1.35 0.60 – 1.35
Phosphorus (P) 0.035 0.025 0.025
Sulfur (S) 0.040 0.025 0.025
Silicon (Si) 0.10 – 0.35 0.15 – 0.30 0.15 – 0.35
Chromium (Cr) 0.30 (if specified) 0.30 (max) 0.30 (max)
Nickel (Ni) 0.40 (if specified) 0.40 (max) 0.40 (max)
Copper (Cu) 0.40 (if specified) 0.40 (max) 0.40 (max)
Molybdenum (Mo) 0.12 (if specified) 0.12 (max) 0.12 (max)
Vanadium (V) 0.08 (if specified) 0.08 (max) 0.08 (max)


Steel Blind Flange Mechanical Properties

Property ASTM A105 ASTM A350 LF2 ASTM A694 F60 Unit
Tensile Strength ≥ 485 ≥ 485 ≥ 515 MPa
Yield Strength ≥ 250 ≥ 250 ≥ 415 MPa
Elongation ≥ 22 ≥ 22 ≥ 21 %
Reduction of Area ≥ 30 ≥ 30 ≥ 30 %
Hardness (Brinell) ≤ 187 ≤ 197 ≤ 235 HB
Impact Toughness Not Required ≥ 27 J @ -46°C Optional (on request) Joules
Temperature Range -29°C to 425°C -46°C to 345°C Varies based on application °C

Features of Steel 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 Steel Blind Flange

A105 Pressure Vessel Flange Forged A105 Blind Flange
A105 Flange RTJ A105 RF Blind Flange
CS HEAVY BLRF FLANGE Steel Blind Flange
Steel Blind Flange Steel 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

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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.

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