Manufacturer,Stockist and Exporter of A105 Boiler Blind Flange

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The A105 Boiler Blind Flange is a vital piping component used primarily to close the ends of pressure vessels, boiler systems, and pipeline sections. Manufactured from ASTM A105 carbon steel, this type of flange is designed to withstand high temperatures and pressure, making it ideal for boiler applications in power plants, refineries, and industrial process systems. Its robust construction ensures safety and efficiency in operations where the flow of fluids or steam needs to be shut off completely.

Raj Bhoomi Engineers is a leading manufacturer, stockist, and exporter of A105 Boiler Blind Flange, providing top-grade flanges that meet stringent international standards such as ASME, ASTM, and ANSI. With state-of-the-art manufacturing facilities and a skilled engineering team, Raj Bhoomi Engineers ensures that every flange produced meets exact specifications for durability, dimensional accuracy, and pressure resistance. Their blind flanges are commonly used in maintenance operations, system testing, and shutdown procedures across critical sectors.

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As a prominent exporter, Raj Bhoomi Engineers serves a wide range of global markets. The company has a strong presence in the Middle East, supplying A105 Boiler Blind Flange to countries like Oman, Qatar, Saudi Arabia, the UAE, and Kuwait. These nations are home to large-scale energy and infrastructure projects where high-performance piping components are essential. Raj Bhoomi Engineers has built a reputation for reliability and quality in these markets, offering both standard and customized flange solutions.

Expanding beyond the Middle East, Raj Bhoomi Engineers also exports to European countries including Spain and Germany, and to North America, specifically the USA and Canada. The demand for carbon steel blind flanges in these regions is driven by both new plant installations and routine system maintenance. Clients value the company’s ability to deliver on time, maintain consistent quality, and provide technical support when needed.

Specification of A105 Boiler Blind Flange

Specification	Details
Material Grade	ASTM A105 (Carbon Steel)
Standard	ASME B16.5 / ANSI B16.5 / ASTM A105 / DIN / EN / BS
Flange Type	Blind Flange (BL)
Size Range	½” NB to 48” NB (Nominal Bore)
Pressure Rating (Class)	150#, 300#, 600#, 900#, 1500#, 2500#
Facing Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Application	Boilers, Power Plants, Pressure Vessels, Heat Exchangers, Petrochemical
Temperature Range	-29°C to +425°C (approx.)
Connection Type	Bolted
Surface Finish	Rust Preventive Oil Coating, Black Paint, Anti-Rust Coating
Testing & Certification	Hydro Testing, Ultrasonic Testing, PMI Test, EN 10204 3.1 / 3.2
Country of Origin	India
Manufacturer / Exporter	Raj Bhoomi Engineers

Raj Bhoomi Engineers exports its A105 Boiler Blind Flange products to various parts of Africa and continues to grow its global distribution network. Whether for power generation, petrochemical processing, or industrial manufacturing, customers across continents trust Raj Bhoomi Engineers for high-quality, cost-effective flange solutions that meet their project needs.

With a focus on innovation, quality assurance, and customer satisfaction, Raj Bhoomi Engineers remains a trusted name in the flange manufacturing industry. Their dedication to producing reliable A105 Boiler Blind Flange products helps support critical infrastructure across the globe, reinforcing their position as a world-class manufacturer and exporter.

A105 Boiler Blind Flange Chemical Properties

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

A105 Boiler Blind Flange Mechanical Properties

Property	Value
Tensile Strength (min)	485 MPa (70 ksi)
Yield Strength (min)	250 MPa (36 ksi)
Elongation (in 50 mm)	22% minimum
Reduction of Area	30% minimum
Hardness (HBW)	187 HB maximum (Brinell Hardness)
Impact Test	Not required unless specified
Modulus of Elasticity	~200 GPa (29,000 ksi)
Melting Point	1425 – 1540 °C
Temperature Range	-29°C to +425°C (service temperature range)

Features of A105 Boiler 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 Boiler Blind Flange

A105 Pressure Vessel Flange	Forged A105 Blind Flange
A105 Flange RTJ	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 Boiler Blind Flange

1. What is an A105 Boiler Blind Flange?

An A105 Boiler Blind Flange is a type of carbon steel flange used to close the end of a boiler nozzle, pipeline, or pressure vessel opening. It is made from ASTM A105 material, which is a forged carbon steel suitable for high-temperature service.

2.Where are A105 Boiler Blind Flanges commonly used?

They are mainly used in boilers, heat exchangers, pressure vessels, and high-pressure pipelines where an opening needs to be sealed for testing, maintenance, or future expansion.

3. How are A105 Boiler Blind Flanges specified?

They are generally specified by: Nominal Size (NPS) Pressure Class (150, 300, 600, etc.) Facing Type (Raised Face, RTJ, or Flat Face) Standard (ASME B16.5 / B16.47)

4.Do A105 Boiler Blind Flange dimensions differ from standard blind flanges?

No, the dimensions are as per ASME B16.5 or B16.47 standards. The term “Boiler Blind Flange” is used because of its application in boilers and pressure vessels, but the dimensional standards remain the same as regular blind flanges.

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