Manufacturer,Stockist and Exporter of A105 Flange Raised Face

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A105 Flange Raised Face is a widely used type of carbon steel flange designed according to ASTM A105 specifications. The raised face (RF) design is one of the most common flange face types, providing a gasket surface that concentrates more pressure on a smaller sealing area, resulting in a tighter and more reliable seal. A105 flanges are forged from carbon steel and are highly suitable for high-temperature and high-pressure piping systems. These flanges are commonly used in the oil & gas, petrochemical, power generation, and water treatment industries.

Raj Bhoomi Engineers is a leading manufacturer, stockist, and exporter of A105 Flange Raised Face, offering premium-quality forged flanges that meet international standards such as ASME B16.5, ANSI, and ASTM A105. These flanges are available in a wide range of pressure classes including Class 150, 300, 600, 900, 1500, and 2500, and sizes ranging from ½” to 48”. The raised face design of these flanges enhances gasket sealing by allowing the gasket to compress better under bolt pressure, ensuring leak-proof connections.

The company has built a strong global presence by supplying its A105 RF flanges to key international markets including Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada, and across multiple regions in Africa and worldwide. Their ability to handle bulk orders, maintain consistent quality, and ensure on-time delivery has made Raj Bhoomi Engineers a trusted name among EPC contractors, industrial suppliers, and end-users globally.

Each A105 Flange Raised Face manufactured by Raj Bhoomi Engineers undergoes stringent quality checks, including dimensional inspection, hydro testing, and chemical & mechanical property verification. The flanges are available in various face finishes as per client requirements, including stock finish, spiral serrated, and smooth finish. These flanges are often supplied with black paint, anti-rust coatings, or galvanized finishes to enhance corrosion resistance in challenging environments.

Specification of A105 Flange Raised Face

Specification Item	Details
Product Name	A105 Flange Raised Face (RF)
Material Grade	ASTM A105 (Forged Carbon Steel)
Face Type	Raised Face (RF)
Flange Type	Weld Neck, Slip-On, Blind, Threaded, Socket Weld (with RF)
Standard Specifications	ASME B16.5, ANSI B16.5, MSS-SP-44, ASTM A105
Size Range	1/2" to 48" (DN15 to DN1200)
Pressure Ratings	Class 150, 300, 600, 900, 1500, 2500
Manufacturing Method	Forged
Design Temperature Range	-29°C to 425°C (-20°F to 800°F)
Gasket Compatibility	Spiral Wound, Ring Joint, Soft Gaskets
Surface Finish (RF)	Stock Finish (125–250 AARH), Spiral Serrated, Smooth Finish
Applications	Oil & Gas, Petrochemical, Power, Refinery, Water Treatment, Marine
Corrosion Resistance	Moderate (can be improved with coatings)
Testing & Certification	Hydro Test, UT, PMI, EN 10204 3.1 / 3.2, ISO 9001:2015, PED, IBR
Manufacturer	Raj Bhoomi Engineers, India

The raised face design is particularly suitable for applications that require gaskets like spiral wound or ring gaskets, making A105 RF flanges ideal for pipelines transporting steam, gas, oil, and other pressurized fluids. Their forged construction ensures excellent strength, resistance to mechanical stress, and a longer service life even in demanding operating conditions.

Raj Bhoomi Engineers delivers high-performance A105 Flange Raised Face products that combine quality, precision, and international compliance. Their global distribution capability, customer-focused approach, and engineering expertise have earned them a strong reputation as a dependable supplier of carbon steel flanges in some of the world’s most demanding markets.

A105 Flange Raised Face 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 *
Nickel (Ni)	≤ 0.40 *
Chromium (Cr)	≤ 0.30 *
Molybdenum (Mo)	≤ 0.12 *
Vanadium (V)	≤ 0.08 *

A105 Flange Raised Face Mechanical Properties

Property	Value
Tensile Strength	≥ 485 MPa (70 ksi)
Yield Strength	≥ 250 MPa (36 ksi)
Elongation	≥ 22%
Reduction of Area	≥ 30%
Hardness (Brinell)	≤ 187 HB (for normalized condition)
Impact Test	Not required unless specified by client
Modulus of Elasticity	~ 200 GPa (29,000 ksi)

Features of A105 Flange Raised Face

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 Flange Raised Face

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 Raised Face Flange

1. What is an A105 Raised Face Flange?

An A105 Raised Face (RF) Flange is a carbon steel flange manufactured to ASTM A105 standards, designed with a slightly raised sealing surface around the bore. This raised area helps concentrate the gasket compression, ensuring a strong and leak-proof joint.

2.Why is the raised face design used in flanges?

The raised face design provides better sealing performance by concentrating the pressure of the gasket over a smaller contact area. This makes it ideal for high-pressure and high-temperature applications.

3.Where are A105 Raised Face Flanges commonly used?

They are widely used in oil & gas pipelines, refineries, chemical plants, power generation, and water treatment systems, where secure and durable pipe connections are critical.

4. What sizes and classes are available for A105 RF Flanges?

A105 Raised Face Flanges are available in sizes ranging from ½” to 60” and pressure ratings from 150# up to 2500#, with options for different drilling patterns and surface finishes.

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