Stainless Steel 304 Weld Neck Flanges Manufacturer and Exporter in Saudi Arabia

Naysha Steel and Alloys, a leading powerhouse in Saudi Arabia deals with production of Stainless Steel 304 Weld Neck Flanges are one of the major players regarding the steel industry. Celebrated globally for their superior quality, these flanges are widely used in several critical fields such as the oil and gas sector, petrochemical firms, ports marine terminals, and conference centers. The energy levels that are used to determine the Weld Neck flanges from Naysha Steel and Alloys have been found to be very accurate in terms of design specifications. The incorporation of the flanges into the valve systems involves several implications, whereby safety in energy transfer is guaranteed through the prevention of adverse issues associated with failure as a way to prevent S-curves. Naysha Steel and Alloys is very strict in structural breakdowns for the stainless 304 series, where it allows perfect functionality with leak-free connections in difficult circumstances. To present yet, new forms of designs Naysha Steel and Alloys has more minimal bits that are distantly isolated in the highest parts. The advantage that this is design is subtle, not only does it amplify the fundamental power of all the systems but also ensures high solution accuracy. The Quality aspect being two-stringed – one is to use the high-end technologies and another is to offer very efficient developments, Naysha Steel & Alloys comes out as a leading based preference when it comes to various aspects of stainless steel manufacture – among them are its Stainless Steel 304 Weld Neck Flanges – in Saudi Arabia.

Stainless Steel 304 Weld Neck Flanges Manufacturer and Exporter in Saudi Arabia

Stainless Steel 304 Weld Neck Flanges Manufacturer And Supplier in Saudi Arabia

However, above all, Naysha Steel and Alloys is the leading manufacturer as well as the most recognized foreign exporter of Stainless Steel 304 Weld Neck Flanges and Stainless Steel Weld Neck Flanges manufacturer in Saudi Arabia. Selling customised solutions depending on the different industrial use, the company displays outstanding performance in manufacturing to industries such as oil and gas, petrochemical sector as well constructions. Relishing the use of advanced tools and technology, Naysha Steel and Alloys guarantees smooth fabrication means requiring minimum setting up with high accuracy for lasting results. These flanges in fact play a key role in ensuring that the driving and reception fluid transmission processes are secured by a pipe system, to achieve various sizes of pressure without any threat of leakage. The feature of an elongated or short neck is then further differentiated with additional reinforcement strength to neighboring pipes thereby reducing stress points when applying welds. Naysha Steel and Alloys utilises innovative technology to manufacture Stainless Steel Flange 304 Weld Neck, unique with dimensions that include holes attacking the upper face. The dimension helps in compression for compact spaces where its use is viable. Customers can depend on Naysha Steel as a trustworthy manufacturer and supplier securing top-quality Stainless Steel 304 Weld Neck Flanges for use in other Saudi Arabian industries, providing nothing but the best options in flange.

Stainless Steel 304 Weld Neck Flanges-Benefits

    The stainless steel 304 weld neck flanges are associated with so many advantages as compared to the other types of flanges. Take a look for the key benefits of stainless steel weld neck flanges.

  • High Strength: Apart from their strong features, Stainless Steel 304 Weld Neck Flanges are widely used for their high levels of reliability and resilience to high pressures. These are great for tough applications that need a solid answer that will last.
  • Corrosion Resistance: The Stainless Steel 304 Weld Neck Flanges are highly resistant to rust and corrosion therefore, suitable for use in varied environment having high temperatures, hard chemicals and various corrosive substances. This resistance guarantees an ultra-long durability operation of the electrical machine.
  • Leak-Proof Design:Stainless Steel 304 Weld Neck Flanges have a long neck and smooth transition, rendering lessening of stress arises due to leakage does not occur very frequently. Stable connection with a great level of safety on important operations.
  • Easy Installation: Stainless Steel 304 Weld Neck Flanges facilitate the installation of its more than any other variation in the event that a simple welding is known to handle then you must know they are time and energy saver when painful an upgrade or repair.
  • Wide Range of Applications: However, Stainless Steel 304 Weld Neck Flanges are broadly adopted for various industries. Their maximum part of endurance against corrosion and proper seal makes them the most suitable selection to use in many sectors. They are suitable for chemical manufacturing, making energy, oil and gas industry, and any operation on the sea.
  • Cost-Effectiveness: Companies make investments in equipment and accessories such as SS 304 Weld Neck Flanges that are more expensive to purchase, but they have low maintenance costs ultimately translating into less capital expenditures in the longer run.
  • Compliance with Standards: Corresponding to the Industry ,the Stainless Steel 304 Weld Neck Flanges have distinct manufacturing processes where excellent quality and reliability are applicable in different pipe systems.

ASME B16.5 Weld Neck Flanges: ANSI 150# weld neck flanges and ANSI 300# weld neck flanges Manufacturer, Stainless Steel Class 304 weld neck flanges and SS 304 weldneck Manufacturer And Exporter In Saudi Arabia

The ASME B16.5 standard provides the ideal guideline to ensure compliance in assembling pipes, flanges and fitting each of these two countries’ Saudi Arabia. This includes criteria as secondary-product design, pressure and temperature rating system setting applicability of materials, dimensions stated with physical evaluation method that guarantees the compliance of requirements and provides prevention fog running damages. Weld neck flanges especially ANSI150# and ANSI300# specifications are the best choices, especially where there is high pressure with equally struggling conditions. Such flanges, which include Stainless Steel 304 weld neck flanges, are suitable applications that require material per resistant to heat for instance- glass rosin pots as they can last long under extreme temperatures. The rating reckons to the distinct max precision, expressed in pressure per unit area, which may withstand the flange at different stages. One such prominent ISQ subcontractor that stands out among other leading players in Saudi Arabia is Naysha Steel and Alloys, which offers best-in-class welding neck flanges of Stainless steel 304 suited for harsh applications.

Among the critical fields that should comply to specific standards, and specifically in the aspect of pipes assembling as controlled by ASME B16.5 standard before any fitting or flanges addition for pipe installations it is essential to throw lights on issues such as impurities design, pressure-temperature ratings, material incompatibilities and dimensions. The former solution, on the other hand, is to ensure engineering codes are complied with in order to prevent damages and hence, proper selection of weld neck flanges in extreme temperatures based on pressures. Since they provide the inability to resist heat, glass rosin pots highly need weld neck flanges of ANSI 150 and ANSI 300 that are able to provide such resistance. Digit rating is the actual pressure that cannot be exceeded by the flange in pounds per square inch. Namely, the company Naysha Steel and Alloys, an eminent entity in Saudi Arabia, is a much liked supplier of Stainless Steel 304 weld neck flanges that adhere to optimum performance standards under extreme conditions.

Stainless steel weldneck flanges process as per UAE standards

Sizes and Availablity of SS 304 Stainless Steel weld neck flanges in our Saudi Arabia shop:

Nominal Size Outside Diameter
Min. Thickness
RF Dia.
No. of Bolt Holes Diameter of Holes Bolt Circle
SO Bore ID
WN Bore ID
Dia. Hub Base
Dia. of Hub Top
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

ASME B16.5, SS 304# and Stainless Steel 304, ANSI Class 150 and ANSI 300# Weld Neck Flanges Availablity In Saudi Arabia

ss weld neck flanges manufacturer exporter uae

As a major player in the industry , Naysha Steel and Alloys specialized for manufacturing and export of Stainless Steel 304 weld neck flanges. Due to the superior manufacturing ability, our products follow the industry necessities their standards such as ASME B16.5 and ANSI Class 150. Screwed and welded flanges for which no need to pass the customer’s specifications have been meeting the high demands of customers throughout countries due to their high reliability, and it has made us a great preferred industry partner in Saudi Arabia.

Only a few among a myriad of the qualities that it is provided with are highly reliable and exceptional, as for our Saudi Arabia 304 Stainless Steel Weld Neck Flanges for exports. These flanges have been designed on the basis of the best SS 304, and these have been considered as durable ones that can take a huge amount of pressure till -1200 ° C. They have a high level of mechanical strength together with uniform accessibility, which are the desired qualities that are applicable in the industrial settings that may be present in the oil, gas petrochemical or power generation.

ASME B16.5 Stainless Steel 304 weld neck flanges with ANSI Class 150, produced by Naysha Steel and Alloys in Saudi Arabia, are the area of specialization of this company. They are offered at the commercial price of two-third because they ensure cost-effective solutions. With our wide range of inventory, even the shortest projects are delivered on time and to that end in id custom solutions, we have diverse sizes and configurations to suit clients’ wishes. Besides, we offer cut, drill, and coatings as per their relevance to different piping systems.

Simple diagram to Understand of 304 Weld Neck Flange Dimensions

The Weld Neck Flange has a round neck that makes the process of connection between pipes easy. At the center, the join of the fitting is welded onto the end skeleton of a pipe; this pivot interfaces with the flange face that guarantees positive seal. Dimensional accuracy is of prime importance, in terms of quality fit as well as functional effectiveness. The planar surface is a key time-parameter to ensure undamaged connecting flange pieces without any gaps for quality seal. Naysha Steel and Alloys, the leading producer, export and manufacture Stainless Steel 304 Weld Neck Flanges to Saudi Arab supplying as per dimensions given demands.

SS Weld Neck Flanges Dimensions

From the standpoint of Stainless flanges welding neck efficiency, this can be remarked that Stainless Steel 304 welded neck is king for phenomenal work ability traits and inherent dimension by definition alone. These flange are widely used not only in the chemical processing industry, but they are also commonly found in waterworks plants and manufactures of horticulture products such as food items and pharmaceutical drugs. Being a great and a special property of corrosion resistance, the Stainless Steel 304 is widely used in high-corroding environments and provide more specific applications. Nickel alloys with zero carbide precipitation are used in welding weld ability, where low-carbon content super-authenticate nickel alloys can be referred to and stainless steel 304 is an indicator one. By connecting the country developments with industries, it would be interesting to say that Naysha Steel and Alloy are best suited for manufacturing weld neck flange made from stainless steel 304 for export as they hold stable proficiency towards fulfilling industrial demands by Saudi Arabia.

The use of Weld neck flanges in some processes may be quite different and comparative study of the element’s chemical composition based on atmospheres and pressures other predetermined process conditions prove that the selection appropriate grade stainless steel are to vary much between temperature designation, pressure processing needs. Therefore, this necessitates for such an organization to find a credible and sustainable vendor that can personally serve them. On the other hand, given that stakeholders in Saudi Arabia are looking for weld neck flanges made out of stainless steel 304 flat heads should negotiate with a supplier capable of guaranteeing quality from uniformity while at the same time being able to tailor them according to customer requirements.

Stainless Steel 304 Weld Neck 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 -


SS 304 Weld Neck Flanges Price List in Saudi Arabia: Valid From 1st February 2024

Take a look on price list of stainless steel SS 304 weld neck flanges in Saudi Arabia

WNRF FLANGES ASTM A182 F304 B16.5 150# SCH-40S 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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SS Flange Welding Neck ANSI 150#, Weld Neck SS Flanges Manufacturer,IS6392 Weld Neck Flanges, UNS S31803 Weldneck Flanges Stockist, UNS S31803 Weld Neck Flanges Manufacturers, UNS S32205 Weld Neck Flanges Stockist, UNS S31803 Weld Neck Flanges Exporter: Grades & Classes (#)

  • ASTM A182 F304/F304L: Standard austenitic stainless steel grade.
  • Class 125: Class 125 Weld Neck Flange suitable for aggressive conditions.
  • Class 150: Weld neck flange design for low-pressure applications.
  • Class 600: Weld Neck Flange Class 600 designed for high-pressure applications.
  • Class 300: Flanges suitable for moderate-pressure applications.

Stainless Steel Flange Welding Neck 150, 18 300 Class SCH 80 Weld Neck Flange, 150# Weld Neck Flange SCH 80, Welding Neck Flanges SCH 40, SS 304 Weld Neck 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
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 Saudi Arabia : (Contact us for detailed information for your nearest branches)

  • SS 304 Weldneck Flanges manufacturer and stockists in Taif , Saudi Arabia.
  • SS 304 Weld-Neck Flanges manufacturer and warehousing in Saudi Arabia.
  • SS 304 Weld Neck Flanges manufacturer and supplier in Jeddah , Saudi Arabia.
  • SS 304 Weldneck Flanges manufacturer and Exporter in Dammam , Saudi Arabia.
  • SS 304 Weld-Neck Flanges manufacturer and contractor in Riyadh, Saudi Arabia.
  • Stainless Steel 304 Weldneck Flanges manufacturer and wholesalor in Khobar , Saudi Arabia.

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 Saudi Arabia.

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 Saudi Arabia.

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 304 Weld Neck Flanges In Saudi Arabia

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