Stainless Steel Flanges Supplier and Manufacturer In India

Name: Stainless Steel Flanges
Brand: Solitaire Overseas

Stainless Steel Flanges Manufacturer, Supplier and Exporter In India

Solitaire Overseas, located in Mumbai, India, is a notable manufacturer of a variety of forged and machined stainless steel flanges. Our flanges include both large diameter and small diameter flanges of pressure class and material grade for both standard products and customized products for a wide variety of industrial uses. Our 304 and 316 stainless steel forged flanges offer durable, effective corrosion resistance, and our advanced technology and experienced team of researchers offer reliability to meet the world's demanding quality standards. Our duplex forged flanges are reliable and competitively priced and our fast logistics help our clients to meet tight project deadlines.

Solitaire Overseas is located in Mumbai, India and is one of the leading manufacturing, exporting and supplying companies of stainless steel flanges. We manufacture duplex flanges of length from 1/2 NPS to 40 NPS (15 NB to 1000 NB) for many industries such as pipelines, marine, power, wastewater, food processing, etc. Our flanges are made to international standards (ASME/ANSI, EN, DIN, JIS, custom, etc.) for our clients. Our stainless flanges are very effective in providing superior mechanical properties. Our tube billets are used as a raw material that is forged. Because it is forged it has no defects such as segregation, leading to very high-quality duplex flanges. Our flanges are usually welded to pipes or threaded to pipe ends. All our products are inspected and tested by our experienced workforce.

Solitaire Overseas manufactures and exports high-quality stainless steel flanges and we supply to over 70 countries around the world. Our company has EN 10204/3.1 and EN 10204/3.2 certifications, and we also offer third-party inspection for our customers. We have a team dedicated to manufacturing under control conditions with certified raw material and precision engineering. It is with great pride that we continue to serve global markets with products of the highest quality

Stainless Steel Flanges Specifications

Size Range	1/2 NPS to 40 NPS (15 NB to 1000 NB)
Class	150#, 300#, 400#, 600#, 900#, 1500#, 2500#, PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100
Grades	F-304, 304L, 304H, 304N, 304LN, 316, 316L, 316H, 316Ti, 316N, 316LN, 310, 317, 317L, 321, 321H, 347, 347H, 904L F-51, 53, 55, 60, 68
Specifications	ASTM, ASME, DIN EN
Type	SO, WN, SW, BL, THRD, Lap Joint, Orifice Type, Reducing Flanges, Spectacle Blind
Face	RF, FF, RTJ, T&G
Applications	Pipeline engineering Marine industry Power industry Oil & gas industry Waste water management Aerospace Plant engineering Chemical industry Food processing

Stainless Steel Flanges Chemical Composition

Type	C	Mn	P	S	Si	Cr	Ni	Mb
302	0.15	2.00	0.045	0.030	1.00	17.00/19.00	8.00/10.00	–
304	0.08	2.00	0.045	0.030	1.00	18.00/20.00	8.00/10.50	–
304L	0.03	2.00	0.045	0.030	1.00	18.00/20.00	8.00/12.00	–
309	0.20	2.00	0.045	0.030	1.00	22.00/24.00	12.00/15.00	–
309S	0.08	2.00	0.045	–	1.00	22.00/24.00	–	–
310	0.25	2.00	0.045	0.030	1.5	24.00/26.00	19.00/22.00	–
310S	0.08	2.00	0.045	0.030	1.5	24.00/26.00	19.00/22.00	–
316	0.08	2.00	0.045	0.030	1.00	16.00/18.00	10.00/14.00	2.00/3.00
316L	0.03	2.00	0.045	0.030	1.00	16.00/18.00	10.00/14.00	2.00/3.00
317	0.08	2.00	0.045	0.030	1.00/1.00	18.00/20.00	11.00/15.00	3.00/4.00
317L	0.03	2.00	0.045	0.030	0.75	18.00/20.00	11.00/15.00	3.00/4.00
321	0.08	2.00	0.040	0.030	1.00	17.00/19.00	9.00/12.00	0.75/0.75
347	0.08	2.00	0.040	0.030	0.5/1.00	17.00/19.00	9.00/12.00	0.5/0.75

Stainless Steel Pipe Flanges Mechanical Properties

Type	UNS	Tensile (ksi) min	Yield (ksi) min	Elongation min	Hardness (Brinell) max	Hardness (Rockwell B) max
302	S30200	75	30	40% in 2″	183	88
304	S30400	75	30	40% in 2″	183	88
304L	S30403	70	30	40% in 2″	183	88
309	S30900	75	30	40% in 2″	217	95
309S	S30908	75	30	40% in 2″	217	95
310	S31000	75	30	40% in 2″	217	95
310S	S31008	75	30	40% in 2″	217	95
316	S31600	75	30	40% in 2″	217	95
316L	S31603	70	25	35% in 2″	217	95
317	S31700	75	30	35% in 2″	217	95
317L	S31703	75	30	35% in 2″	217	95
321	S32100	75	30	40% in 2″	183	88
347	S34700	75	30	40% in 2″	183	88

SS slip on Flange Equivalent Grade

Standard	Werkstoff Nr.	AFNOR	UNS	BS	JIS	GOST	EN
SS 304	1.4301	Z7CN18-09	S30400	304S31	SUS	08X18H10	X5CrNi18-10
SS 304L	1.4306/1.4307	Z3CN18-10	S30403	304S11	SUS 304L	03X18H11	X2CrNi18-9/X2CrNi19-11
SS 316	1.4401/1.4436	Z7CND17-11-02	S31600	316S31/316S33	–	–	X5CrNiMo17-12-2/X3CrNiMo17-13-3
SS 316L	1.4404/1.4435	Z3CND17-11-02/Z3CND18-14-03	S31603	316S11/316S13	316L	03X17H14M3/03X17H14M2	X2CrNiMo17-12-2/X2CrNiMo18-14-3

Stainless Steel Flange Applications

Chrome Moly Tubes in various Application Industries

Oil & Gas Industry
Stainless steel flanges are vital in the oil and gas industry for their strength and corrosion resistance. They withstand extreme pressures and temperatures in pipelines and drilling operations, ensuring safe and reliable transport of oil, gas, and petroleum products. Their resistance to harsh chemicals makes them indispensable for critical connections.

Chemical Processing
In chemical plants, stainless steel flanges connect pipes and equipment handling corrosive substances. Grades like 316 stainless steel, enriched with molybdenum, offer superior corrosion resistance. This ensures long-lasting, safe operation in environments exposed to aggressive chemicals.

Food & Beverage Industry
Stainless steel flanges are ideal for hygienic applications in the food and beverage sector. Their smooth, non-porous surface prevents bacterial growth and meets strict health standards. They are widely used in sanitary piping and equipment for food-grade processing.

Power Generation
In power plants, these flanges connect components like boilers, turbines, and heat exchangers in high-temperature environments. Their excellent strength and heat resistance ensure reliability under extreme stress, supporting safe and efficient power generation.

Types Of Stainless Steel Flanges

Our advanced manufacturing facilities produce a wide range of stainless steel flanges, including:

Blind Flange

A Blind Flange is a solid, circular plate with boltholes but no center hole, used to seal the ends of piping systems and pressure vessels. It allows easy access for inspections and maintenance.

Weld Neck Flange

Designed for high-pressure applications, Weld Neck Flanges have a long tapered hub that minimizes stress at the flange base. The smooth transition from the hub to the pipe bore enhances durability, reduces turbulence, and provides excellent reinforcement for extreme pressure and temperature conditions.

Slip-On Flange

A Slip-On Flange is slid over the pipe and welded both inside and outside for added strength. These cost-effective flanges require less precision in pipe cutting and are ideal for low-pressure applications.

Socket Weld Flange

Socket Weld Flanges involve inserting the pipe into the socket end before welding, ensuring a smooth bore and enhanced fluid or gas flow. They are mainly used for smaller, high-pressure pipelines.

Threaded Flange

Threaded Flanges resemble slip-on flanges but feature tapered threads for easy connection without welding. They are commonly used in low-pressure systems with externally threaded pipes.

Lap Joint Flange

A Lap Joint Flange slides over the pipe and is typically used with stub end fittings. It allows easy rotation and frequent dismantling, making it ideal for applications that require regular maintenance.

FAQS

Stainless steel flanges connect pipelines in industries like oil and gas, chemicals, and water treatment, allowing for easier assembly, disassembly, maintenance, and repairs of pipe sections.

Types of Flanges 1. Welding Neck Flange 2. Slip on Flange 3. Socket Welding Flange 4.

Stainless steel flanges are typically made from grades like ASTM A182 F304/F304L and F316/F316L, offering excellent corrosion resistance. They suit pressure ratings from Class 150 to 2500.

The commonly used ASTM standard for stainless steel flanges is ASTM A182, which covers forged and rolled alloy and stainless steel pipe flanges, fittings, valves, and parts for high-temperature service. The most commonly used materials include ASTM A182 F304/L and F316/L.

The pressure rating of stainless steel flanges varies based on material grade, flange type, and design. It is measured in pounds per square inch (PSI) or pressure classes (e.g., Class 150, 300, 600, etc.). Higher-grade materials and specific flange designs can withstand greater pressure levels.

Stainless steel flanges are critical components of pipes and tubes, which provide connection. Stainless steel flanges consist of circular disks that have circular ridges or projections on their surfaces that help to grip the pipe and tube closely. Stainless steel flanges hold up incredibly well under pressure and high temperature.