Ring Joint Flanges High Quality Material Industrial Grade Astm Is Standard Manufacturer And Supplier

Name: Ring Joint Flanges High Quality Material Industrial Grade Astm Is Standard Manufacturer And Supplier
Brand: Neptune Metal Industries
Availability: InStock
Rating: 4 (1 reviews)

Specification Details
Flanges Types	Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Lap Joint, Companion
Class	150 Lbs, 160, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100
Size	1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
Type	Raised Face (rf), Small Tongue, Flat Face (ff), Groove, Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove

Premium Ring Joint Flanges Industrial Grade Steel ASTM A105 A182 IS Standard Manufacturer

Neptune Metal Industries is a reliable brand name in the production of ring joint flanges, which are to be used in high-pressure and high-temperature conditions where it is important that the performance is leak-proof. These flanges employ a high-precision machined groove and a metallic ring gasket, which forms an excellent seal at very high pressure and is suited for the oil and gas, petrochemical, power generation and other B2B industry applications. Ring joint flanges are known to be exceptionally strong in construction and dimensionally accurate in construction, allowing their use in situations in which safety, reliability and extended service life are paramount. The company being a ring joint flanges manufacturer in India, emphasis is laid on the compliance with the high standards of the industry and consistency in the quality of work as far as the flanges projects are concerned.

Ring joint flanges are produced in a large variety of material grades depending on the operating conditions and media. Common forms of grade are carbon steel, such as ASTM A105 and ASTM A350 LF2, to use in moderate- to low-temperature services; alloy, like ASTM A182 F11 and F22, to use in high-temperature and high-pressure services; and stainless steel, such as ASTM A182 F304, F316 and its low-carbon forms, to use in corrosive services. Stainless steel grades such as duplex and super duplex are also utilised in cases where high strength and excellent corrosion resistance is demanded to give reliable performance in a high-performance industrial system.

Ring Joint Flanges – Standard Weight Chart

The table below provides an approximate weight guide for Ring Joint (RTJ) Flanges manufactured in accordance with ASME B16.5 specifications. These values are intended as a general reference for design calculations, transportation planning, inventory estimation, and project procurement. Actual weights may differ depending on material grade, pressure class, machining requirements, and manufacturing tolerances.

Ring Joint Flanges

Nominal Size (NB)	Outside Diameter (mm)	Flange Thickness (mm)	Approx. Weight Per Piece (Kg)	Estimated Weight (100 Nos) (Kg)
½" (15 NB)	95	11.0	0.8	80
¾" (20 NB)	117	12.5	1.2	120
1" (25 NB)	124	14.0	1.6	160
1½" (40 NB)	156	16.0	2.7	270
2" (50 NB)	165	19.0	4.0	400
3" (80 NB)	210	22.0	7.2	720
4" (100 NB)	273	24.0	11.5	1150
6" (150 NB)	356	29.0	21.0	2100
8" (200 NB)	419	35.0	34.0	3400

About Ring Joint Flanges

Ring Joint Flanges (RTJ Flanges) are engineered for high-pressure and high-temperature piping systems where exceptional sealing performance is required. They feature a precision-machined groove that accommodates a metallic ring gasket, creating a reliable metal-to-metal seal under bolt loading. These flanges are widely used in industries such as oil & gas, petrochemical, offshore, power generation, and process plants, where leak prevention and operational safety are critical.

Manufactured from premium-grade stainless steel and other alloy materials, RTJ flanges deliver excellent mechanical strength, corrosion resistance, and long service life. Every flange is produced with strict quality control measures to ensure dimensional accuracy, dependable performance, and compliance with international standards. Whether for new installations or maintenance projects, Ring Joint Flanges provide a durable and secure connection for demanding industrial applications.