Manufacturer,Stockist and Exporter of A105 50 Inch Blind Flange

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A105 50 Inch Blind Flange is a large-diameter carbon steel flange designed to close the end of a piping system or pressure vessel. Made from ASTM A105 forged steel, this flange is specifically engineered for high-pressure, high-temperature applications across industries such as oil & gas, petrochemical, power generation, and water treatment. Its 50-inch size makes it suitable for heavy-duty industrial systems where sealing large-diameter pipelines is essential for operational safety and efficiency.

As a manufacturer, stockist, and exporter, suppliers of A105 50 Inch Blind Flanges provide these components in accordance with international standards like ASME B16.47 Series A/B and API 6A. These flanges are forged for enhanced strength and structural reliability, with pressure class ratings typically ranging from Class 150 to Class 600 and higher upon request. They are commonly offered with Raised Face (RF), Flat Face (FF), or Ring Type Joint (RTJ) face types and may include surface finishes such as serrated or stock finish, depending on the sealing requirements.

Manufacturers and exporters in India, China, Europe, and the Middle East cater to a global clientele, including countries like Oman, Qatar, Saudi Arabia, UAE, Kuwait, as well as Spain, Germany, the USA, Canada, and multiple regions in Africa. The global demand for these large-size blind flanges is driven by infrastructure development, energy production, and water management projects that require high-performance sealing solutions.

The mechanical properties of A105 50 Inch Blind Flanges are consistent with ASTM A105 standards, offering a minimum tensile strength of 485 MPa and a minimum yield strength of 250 MPa. These flanges also maintain good elongation and hardness characteristics, making them suitable for fluctuating pressure and temperature conditions. Depending on the application, the flanges can be coated with anti-corrosion finishes such as black paint, epoxy, or hot-dip galvanizing to ensure durability in harsh environments.

Specification of A105 50 Inch Blind Flange

Specification	Details
Material Grade	ASTM A105 (Carbon Steel)
Flange Type	Blind Flange
Manufacturing Process	Forged
Pressure Ratings	ANSI Class 150, 300, 600, 900, 1500, 2500
Standards	ASME B16.5, ASME B16.47, API 6A
Size Range	½” to 60” (DN15 to DN1500)
Face Type	RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)
Surface Finish	Serrated, Smooth, Stock
Coating/Finish	Anti-rust oil, Black Paint, Galvanized, or Customized
Temperature Range	-29°C to 593°C (-20°F to 1100°F), depending on service conditions
Applications	Oil & Gas, Petrochemical, Power Generation, Marine, Water Treatment
Certification	EN 10204 3.1 / 3.2, NACE MR0175, ISO, PED compliant

Quality assurance is a critical part of the manufacturing process, with most flanges subjected to non-destructive testing (NDT), including ultrasonic inspection, hydrostatic testing, and visual dimensional checks. Certifications like EN 10204 3.1 or 3.2 are often provided to meet project documentation and compliance standards.

A105 50 Inch Blind Flange is a crucial component in the pipeline systems of large-scale industrial operations. With robust construction, precise manufacturing, and wide export availability, these flanges are trusted by engineers and project managers worldwide for their reliability, compliance, and ability to perform under extreme service conditions.

A105 50 Inch 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 50 Inch 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 50 Inch 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 50 Inch Blind Flange

A105 Pressure Vessel Flange	Forged A105 Blind Flange
A105 50 Inch 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

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