Name: Aluminium Flanges Supplier
Brand: Riddhi Siddhi Metal Impex
Availability: InStock
Rating: 5 (15 reviews)

Question 1

What are the various classes of Aluminium Flanges?

Accepted Answer

Aluminium flanges are divided into pressure classes based on their maximum pressure capacity at a specific temperature. Typical classes include Class 125 and 150 for low to medium-pressure applications, Class 300 for more significant pressures, and Class 600 for even higher-pressure systems. Classes 900, 1500, and 2500 are utilised for exceptionally high-pressure applications. The system's operational characteristics, such as pressure and temperature, define the class. Compliance with ANSI, ASME, and ISO standards is critical for guaranteeing application compatibility and safety.

Question 2

What are the types of Aluminium Flanges?

Accepted Answer

Aluminium flanges are divided into several types based on their design and application needs, such as the Weld Neck for high-pressure connections with a strong, leak-proof bond. Slip-on for easier alignment in low-pressure systems. Blind for sealing system ends, allowing for easy access; Threaded for environments where welding is not practical, allowing for easy attachment; Lap Joint for systems that must be dismantled frequently, providing ease of assembly; and Socket Weld for smaller, high-pressure systems, providing a strong bond and leakage prevention. Each kind has a different purpose, satisfying specific pressure, alignment, and assembly requirements in various industrial applications.

Question 3

Why do we coat Aluminium Flanges?

Accepted Answer

Aluminium flanges are coated primarily to prevent corrosion and increase their endurance. Despite its natural corrosion resistance, aluminium may rust over time if exposed to hostile conditions or chemicals. Coatings give an extra layer of protection, preventing corrosion and increasing the life of aluminium flanges, assuring their dependability in various industrial applications.

Flanges Types	Slip On, Weld Neck, Long Weld Neck, Threaded, Companion, Blind, Lap Joint
Class	150 Lbs, 40, 300 Lbs, 64, 100, 600 Lbs, 160, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Pn 6, Asa 300, 10, 25, 16
Size	1/2″ (15 Nb)
Type	Raised Face (rf), Small Male Female (smf), Flat Face (ff), Large Tongue & Groove, Ring Type Joint (rtj), Small Tongue, Lap Joint Face (ljf), Large Male Female (lmf), Groove

Material	Grade / Alloy	Standard	Size Range	Pressure Rating	Temperature Range	Flange Type	Typical Application
Aluminium	6061-T6	ASTM B247 / ASME B16.5	½″ – 24″	Class 150 – 300	-50°C to 150°C	Slip-On / Weld Neck	Piping systems, water & fluid handling
Aluminium	5083	ASTM B209	½″ – 20″	Class 150	-50°C to 120°C	Blind Flange	Marine, shipbuilding applications
Aluminium	6082-T6	EN 573 / EN 485	½″ – 24″	Class 150 – 300	-50°C to 150°C	Threaded / Lap Joint	Industrial pipelines, chemical processing
Aluminium	7075-T6	ASTM B209	½″ – 12″	Class 300	-50°C to 120°C	Weld Neck / Blind	Aerospace, high-strength applications

Aluminium Flanges Supplier