Stainless Steel SS 304 (ASTM A182) 300 Class Flanges Manufacturer And Supplier In Mumbai, India

Naysha Steel and Alloy is your go to manufacturer and supplier of strategic grade Stainless Steel SS 304 (ASTM A182) 300 Class Flanges in Mumbai, India. The craftsmanship of our flanges meets the maximum quality standards and the ability to perform, making them a perfect fit for the different industrial application demands. Made of high nickel stainless grade steel, our SS 304 flanges are fully resistant to corrosion and remain durable throughout demanding conditions for stable operational periods. These flanges are built to withstand high pressure and high temperature conditions and, therefore, can work well with existing critical piping systems. Naysha Steel and Alloy is a company that steeped in high-level precision engineering and making use of the most superior craftsmanship to ensure that the flanges they deliver far exceed the standard in the industry. Combination of our quality of product, affordable pricing, and quick delivery can be the determinant factor of a loyal customer when seeking best stainless steel flange solutions. Trust in Naysha Steel and Alloy for all your flange needs; and you will have supreme quality and dependability.

stainless steel 304 300 class flanges banner

SS 304 (ASTM A182) 300 Class Flanges Manufacturer And Supplier In Mumbai, India

For Class 300 Flanges, with top-level SS 304 (ASTM A182), Naysha Steel and Alloy is the company you look for in Mumbai, India that is a reputable manufacturer and supplier. The flanges we manufacture are made to fulfill these standards and carry out their functions excellently so that they perform well in multiple applications. Manufactured from high-grade stainless steel, the flanges can boast outstanding corrosiveness and strength. Whether they are used for reaction, petrochemical or any other industries, our flanges have unequaled strength and quality. We can offer varieties of sizes and configurations that can execute different needs of the projects. Trust our products from Naysha Steel and Alloy, which include the SS 304 ASTM A182 300 Class Flanges, for a perfect fit and the ability to function flawlessly for a long time.

Countless Benefits of SS 304 ASTM A182 300 Class Flanges, ASTM A182 300# SS 304 Flange:

    The SS 304 ASTM A182 300 Class Flanges are associated with so many advantages as same to the other types of flanges. Take a look for the key benefits of stainless steel weld neck flanges.

  • Easy Installation: SS 304 from ASTM A182, 300 Grade Flanges have already taken over the market with predefined dimensions and easy way of installation, requiring only a small amount of the labor power so you can save time and money on it.
  • Leak-Proof Design: Controlled and craftsmanship of these straps ensure a tight seal thus prevents any leakages of the fluids or gases. This enhances the pipe system integrity and reduces chances of accidents.
  • Corrosion Resistance: These flanges are made of stainless steel of premium grade that are very resistant to corrosion and rusting, which gives them a better advantage to be used in areas such as marine, chemical, and industrial settings.
  • High Strength: Developed to provide the highest pressure and temperature resistance performances makes these flanges are long-lasting and withstand to the worst-case scenarios with the highest safety standard in their operating environments.
  • Wide Range of Applications: Custom-made parts with the ability to cover sectors and industries because oil and gas, pharma industry, wastewater treatment and food processing also can use them. Their compatibility with different piping materials open up more possibilities to different projects one has when it comes to piping projects

SS 304 ASTM A182 300 Class Flanges, ASTM A182 300 Class Flanges, SS 304 300 Class Flanges, SS 304 300# Flanges, ASTM A182 Stainless Steel 304 Flanges, Manufacturer And Supplier In Mumbai, India

Naysha Steel and Alloy supplies the superior SS 304 (ASTM A182) 300 Class Flanges for high-grade pipe work fittings that assure steadiness and reliability of joints in piping systems. We pure stainless steel of exceptional degrees as the material of these flanges that ensures outstanding durability and resistance to corrosion for many industrial applications. Our ASTM A182 300 Class Flanges are made to very precise standards to ensure a tight fit that meets strict quality requirements, to guarantee outstanding performance and high quality. Their extensive strength and resistance to chemicals and environmental factors, they would prove to be a fearless option for operations associated with the ultimate success.

Regardless of whether your industry pertains to chemicals and petrochemical plants, pharmaceutical facilities or to food processing, Naysha Steel and Alloy will be glad to meet your requirements. Our wide-ranging launch of ASTM A182 Stainless Steel 304 Flanges covers most demands with the necessary flexibility and safety in use. Being one of the trusted manufacturer and supplier in Mumbai, India, our commitment to excellence in both product quality and customer service is the foundation pillar of our business service. What we achieve by our company’s knowledge and commitment is to go above expectation, therefore we provide solutions that correspond to the most sophisticated needs of our customers. Go for Naysha Steel and Alloy having best condition SS 304(ASTMA182) 300 Class Flanges of the top quality and durability.

astm a182 300 ss 304 flanges

ASTM A182 Stainless Steel 304 300 Class Flanges, SS 304 ASTM A182 300 Class Flanges Size In Mumbai, India shop:

Nominal Size Outside Diameter(OD) Min. Thickness(T) RF Dia.(R) No. of Bolt Holes Diameter of Holes Bolt Circle(BC) SO Bore ID(SB) WN Bore ID(WB) Dia. Hub Base(HB) Dia. of Hub Top(HT) SO LTH(SL) WN LTH(WL)
12 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
34 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
114 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
112 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
212 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
312 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94

ASTM A182, Stainless Steel 304, ANSI Class 300 Flanges, ASTM A182 300# Flanges, Class 300 SS Flange Available In Mumbai, India

astm a182 class 300 ss flanges manufacturer

Naysha Steel and Alloy's selection of stainless steel flanges, particularly SS 304 (ASTM A182) 300 Class Flanges, is exceptionally vast and composed of top-notch materials. Our products of ANSI Class 300 meet those standards and are designed to resist high-pressure settings. These fittings have superior corrosion resistance and durability, which makes them a good choice for various applications in the petrochemical, oil & gas and chemical processing industries.

The SS 304 (ASTM A182) 300 Class Flanges that we offer are from premium stainless steel material results this in long lasting performance and reliability. They are made up to have a secure and water tight connection between pipes or valves in piping kind of systems. ASTM A182 requirement assures the flanges we supply are strictly in accordance with the meticulous chemical composition, mechanical properties, and dimensional accuracy.

Whether you need those flanges for construction of new projects or replacement parts for maintenance work, Naysha Steel and Alloy is there to the rescue. By means of our vast inventory and extensively operating distribution system, the timely delivery of our products to the customers in Mumbai and India is made possible. For your stainless steel flange solutions, trust the expert services from Naysha Steel & Alloy. Follow our contact information to learn more about our SS 304 (ASTM A182) 300 Class Flanges and other products that we have.

Understand Dimensions of ASTM A182 Stainless Steel 304 300 Class Flange Dimensions To Simple diagram

Naysha Steel and Alloy is a premium Flange manufacturer in Mumbai, India along with ASTM A182 Stainless Steel 304 300 Class Flanges. The robustness of these flanges is guaranteed by the highest level of accuracy in manufacturing, which in result provides long and trouble-free service. By machine construction with a high-grade stainless steel, our ASTM A182 Stainless Steel 304 300 Class Flanges are widely preferred for being rust resistance and sturdy. These flanges are intended to withstand high-pressure and high-temperature applications and thus can be used by numerous industries including those of petrochemical, oil and gas, chemical and more.

SS 304 Flanges manufactuere, supplier

Whether it is the dimension of the ASTM A182 Stainless Steel 304 300 Class Flanges or the fit and compatibility with other piping systems, our pipe flanges are constantly engineered to ensure a precise fit. The specified dimensions and close tolerances of our flanges always certify that there will be nothing to leak and the connections will function properly. Specifications of our flanges include the design of a simple diagram for control at the assembly and installation without the need for experts or special tools. Regardless of whether you need a brand new pipeline or to replace some old flanges with our ASTM A182 Stainless Steel 304 300 Class Flanges, you can count on the highest degree of safety and reliability.

As well Naysha Steel and Alloy customer happiness is equally important to a degree. To us, the goal is to let our clients have the best product and service experience, and not only within the Mumbai, India, territory. Being in this industry for such a long time and gaining the necessary skills enables us to ensure that you procure the products you require and which exceed your expectations, all meeting your specification needs.

ASMT A182 Class 300 SS 304 Flange Chemical Composition Table

Grade/ Marked Symbol Carbon (Max) Manganese (max) Silicon (maximum) Phosphorus (max) Sulfur (max) Chromium Molybdenum Nickel N
F304 0.08 2 0.75 0.045 0.030 18-20 - 8-11 -
F304L 0.035 2 1.00 0.045 0.030 18-20 - 8-13 -
F316 0.08 2 0.75 0.045 0.030 16-18 2-3 10-14 64.845
F316L 0.035 2 1.00 0.045 0.030 16-18 2-3 10-14 68.89


SS 304 ASMT A182 300 Class flanges Price List in Mumbai, India: Valid From 1st March 2024

Take a better look on price list of stainless steel and weld neck flanges in Mumbai, India

SS 304 ASMT A182 300 Class flanges Price
15mm 0.54 543.95 591.25 8.242 8.958 5.551 6.033 9.890 10.750
20mm 0.78 854.45 928.75 12.946 14.072 8.719 9.477 15.535 16.886
25mm 1.12 1009.70 1097.50 15.298 16.629 10.303 11.199 18.358 19.955
32mm 1.47 1179.90 1282.50 17.877 19.432 12.040 13.087 21.453 23.318
40mm 1.90 1475.45 1603.75 22.355 24.299 15.056 16.365 26.826 29.159
50mm 2.77 1707.75 1856.25 25.875 28.125 17.426 18.941 31.050 33.750
65mm 4.49 2717.45 2953.75 41.173 44.754 27.729 30.140 49.408 53.705
80MM 5.44 3105.00 3375.00 47.045 51.136 31.684 34.439 56.455 61.364
100mm 7.69 4347.00 4725.00 65.864 71.591 44.357 48.214 79.036 85.909
125mm 9.40 7452.00 8100.00 112.909 122.727 76.041 82.653 135.491 147.273
150mm 11.82 9315.00 10125.00 141.136 153.409 95.051 103.316 169.364 184.091
200mm 19.11 13972.50 15187.50 211.705 230.114 142.577 154.974 254.045 276.136
250mm 26.19 18630.00 20250.00 282.273 306.818 190.102 206.633 338.727 368.182


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Stainless Steel Flanges ANSI 300, IS6392 Flanges, SS 304 300 Class Flanges Manufacturer, Class 300 SS 304 Flanges Manufacturer, ASMT A182 300# SS 304 Flanges Manufacturer, UNS S31803 Weld Neck Flanges Stockist, UNS S31803 Flanges Manufacturers, UNS S31803 Flanges Exporter, UNS S32205 Flanges Stockist : Grades & Classes (#)

  • ASTM A182 F304/F304L: Standard austenitic stainless steel grade.
  • ASTM A182 F347/F347H: Stabilized stainless steel grade with niobium addition.
  • ASTM A182 F321/F321H: Stabilized stainless steel grade with titanium addition.
  • ASTM A182 F316/F316L: Austenitic stainless steel with enhanced corrosion resistance.
  • ASTM A182 F53: Super duplex stainless steel grade with excellent corrosion resistance.
  • Class 125: Class 125 Weld Neck Flange suitable for aggressive conditions.
  • Class 150: Weld neck flange design for low-pressure applications.
  • ASTM A182 F51: Duplex stainless steel grade with high strength and corrosion resistance.
  • Class 600: Weld Neck Flange Class 600 designed for high-pressure applications.
  • Class 300: Flanges suitable for moderate-pressure applications.

SS 304 Flange 300, 300# ASMT A182 SS 304 Flanges, Stainless Steel 304 ASMT 182 300 Class Flanges Specifications

Specification Of : Weld Neck Stainless Steel Flanges
JIS Standards 5K, 10K, 40K, 16K 20K 30K, 63K
Size Of Bore Diameter Flange NPS ≤ 10
Manufacturer Of Standard Dimensions EN-1092 Flange, ASME B16.48 Flange, API605 Flange, BS4504 Flange, EN1092 Flange, UNI Flange, ISO Flange, API7S-43 Flange, ANSI/ASME B16.5 Flange, API7S-15 Flange, MSS S44 Flange, IS 2062 Flange, ASME B16.36 Flange, DIN Flange, AWWA C207 Flange, B16.47 Series A & B Flange, BS1560-3.1 Flange, ISO70051 Flange, API Flange, ASME Code for 12 inches Welding Neck Flanges.
Minimum Pressure 150# To 2500#
Flange Face Type Raised Face, Groove And Small Tongue Groove, RTJ, Weld Neck Flanges Flat Face, Large Tongue & Large Male-Female And Small Male-Female, Lap-Joint Face.
Top Six Type Of Flanges Threaded, Lap Joint, Socket-Weld, Blind, Slip-On or Weld Neck Flanges
Standard Materials Duplex Steel & Super Duplex Steel, Copper Nickel, Wrought Iron, Inconel, Mild Steel, Stainless Steel, Hastelloy, Cast Iron, Alloy Steel, Carbon Steel.
Thickness Length NPS ≤ 18
Welding neck flanges size (1/2") To (48")
Manufacturing Process Forged/ Machined/ Heat Treated
Other Type Of Flange Forged/ Plate/ Threaded
Application Oil And Gas Industry Power Plants Industry Food Processing And Manufacturing Waterworks Systems Fossil Fuel Power Plants Nuclear Power Application Municipal Pipe Systems


Please find below our other manufacturing and Sales network in India : (Contact us for detailed information for your nearest branches)

  • Stainless Steel 304 ASMT A182 300 Class flanges manufacturer and Manufacturer in Mumbai, India.
  • Stainless Steel 304 ASMT A182 300 Class flanges manufacturer and supplier in Nagpur, India.
  • Stainless Steel 304 ASMT A182 300 Class flanges manufacturer and stockists in Pune, India.
  • Stainless Steel 304 ASMT A182 300 Class flanges manufacturer and Exporter in Thane, India.
  • Stainless Steel 304 ASMT A182 300 Class flanges manufacturer and wholesalor in Nashik, India.

Frequently Asked Questions

What is a stainless steel weldneck flange?

A stainless steel weldneck flange is a type of pipe flange designed to be welded onto the neck of a pipe. It provides a smooth, high-strength connection for joining pipes, valves, and other equipment. All the standard Flange dimensional sizes are Readily available at any Naysha Steel branch in India.

What types of stainless steel material grades are used for weldneck flanges?

Common stainless steel materials include 304, 316, and 321, among others. The choice of stainless steel grade depends on the specific application and the required corrosion resistance.

What sizes are available for stainless steel weldneck flanges?

Stainless steel weldneck flanges are available in a wide range of sizes, typically ranging from 1/2 inch to several feet in diameter. The size you need depends on your specific piping system requirements. All the standard Flange dimensional sizes are Readily available at any Naysha Steel branch in India.

Can stainless steel weldneck flanges be used with other pipes?

Yes, stainless steel weldneck flanges can be used with pipes made of other materials, provided the flange material is compatible with the pipe material, and the connection is properly sealed.

Industries served by Stainless Steel SS 304 (ASTM A182) 150 Class Flanges In Mumbai, India

In the oil and gas industry, blind Alloy Steel flanges are used in pipelines, storage tanks, and offshore platforms. They are employed for closing off openings during maintenance, repair, or when a branch connection is not required. Petrochemical plants utilize blind Alloy Steel flanges in equipment such as reactors, distillation columns, and storage vessels. These flanges provide a secure and leak-proof seal when closing off unused openings or isolating sections of the process.

oil gas manufacturer
Oil and Gas Industries

The oil and gas industry includes a wide range of from drilling and production to refining and marketing. Some of the major players in this include oil and gas companies, service providers, equipment.

petroleum manufacturer supplier
Petroleum Industries

In the drilling process, stainless steel is used to make drill bits, pipes, and other equipment that must withstand high pressures and temperatures. Stainless steel is also used to make pumps, valves, and fittings for the transportation.

chemical flanges
Shipbuilding in India

In storage applications, stainless steel is used to make tanks and containers that can safely store corrosive and hazardous chemicals. It is also used in piping systems for chemical transfer and distribution chemical industry.

Marking & Pricing

Products are packaged to ensure that there is no damage during of goods transport. In case of exports, standard export packaging is done with utmost care in wooden covering or boxing. All products are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make customized marking on our products.

Quality Assurance

At Naysha Steel, all fittings and flanges are subject to strict inspection at each and every stage of the production process, from starting material purchasing to product dispatch. They are visually examined for compliance to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality compliance of products.

Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report