Skyland Metal And Alloys Inc

Being a well established organization, we bring forth an excellent assortment of Stainless Steel Flanges. Our offered flanges are widely appreciated by our prestigious clients for their precise design and easy installation. These flanges can also be availed in various sizes, designs and other related specifications. Our provided flanges are manufactured by a team of our vendors'' adept professionals utilizing quality approved raw material and advanced technology.

Features:

• Compact design
• Smooth finish
• Rust proof

The calculated strength from a Slip On flange under internal pressure is of the order of two-thirds that of Welding Neck flanges, and their life under fatigue is about one-third that of the latter.

The connection with the pipe is done with 2 fillet welds, as well at the outside as also at the inside of the flange.

The X measure on the image, are approximately:
Wall thickness of pipe + 3 mm.

This space is necessary, to do not damage the flange face, during the welding process.

A disadvantage of the flange is, that principle always firstly a pipe must be welded and then just a fitting. A combination of flange and elbow or flange and tee is not possible, because named fittings have not a straight end, that complete slid in the Slip On flange.

Lap Joint Flanges are used in conjunction with "Lap Joint Stub Ends". The stub end is welded to the pipe with the flange free fitting around the pipe. Bolting pressure is transmitted to the gasket from the flange against the back of the pipe lap to produce a seal. 

Materials:

SS304 - A common standard for stainless steel due to its malleability, high corrosive resistance weld-ability

Blind Flanges are manufactured without a bore and used to blank off the ends of piping, Valves and pressure vessel openings.

From the standpoint of internal pressure and bolt loading, blind flanges, particularly in the larger sizes, are the most highly stressed flange types.

However, most of these stresses are bending types near the center, and since there is no standard inside diameter, these flanges are suitable for higher pressure temperature applications.

Forged Pipe Fitting Carbon Steel Weldoflange BW A105N MSS SP 97 OUTLET PIPE FITTING

• 10 years exporting experience

• Special design available according to your drawing

• Anti-corrosion and high-temperature resistant with black painting

• A conformity rate of ex-factory inspection and 100% re inspection before shipment

• FOB, CNF, CIF price is acceptable

• Professional packing which can meet different modes of transport

• ISO9001-2008

ASTM standards define the specific manufacturing process of the material and determine the exact chemical composition of pipes, fittings and flanges, through percentages of the permitted quantities of carbon, magnesium, nickel, etc., and are indicated by "Grade".

For example, a carbon steel pipe can be identified with Grade A or B, a stainless-steel pipe with Grade TP304 or Grade TP321, a carbon steel fitting with Grade WPB etc..

Below you will find as an example 3 tables with chemical requirements for:

1. Flanges ASTM A182 Grade F304, F304L F316L
2. Pipes ASTM A312 Grade TP304, TP304L, TP3016L
3. Fittings ASTM A403 Grade WP304, WP304L, WP316

SKYLAND METAL AND ALLOYS INC. is ISO certified manufacturers and suppliers of ASTM A694 High Yield Carbon Steel Flanges contain Low-Temperature Carbon Steel adaptable to ASTM A694 specifications, work at low-temperature applications. Our High Yield CS A694 Pipe Flangeshave a yield strength of 36ksi and are normalised to gain a good grain structure.High Yield Carbon Steel A694 Orifice Flanges supply maximum machinability when normalised ,annealed or forged and possess average strength and offer leakage proof connection at cheap price.

SKYLAND METAL AND ALLOYS INC. has been supplying and Exporting High Yield Carbon Steel A694 Weld Neck Flanges to various industries for the last three decades with passion, through its outstanding performance and remarkable services. We have largest stock of High Yield CarbonSteel ASTM A694 Flanges such as High Yield CS LF2 Weld Neck Flanges, ASTM A694 High Yield CS Slip On Flanges, High Yield CS LF2 Socket Weld Flanges, A694 High Yield CS Blind Flanges, A694 High Yield CS Spectacle Blind Flanges, Carbon Steel LF2 Orifice Flanges, A694 Screwed / Threaded Flanges,ASTM A694 High Yield CS Ring Type Joint Flanges (RTJ), LF2 High Yield CS Reducing Flanges etc.

For instance, alloy 20 will resist corrosion especially in those environments that contain chemicals like  nitric acid, phosphoric acid, chlorides and sulfuric acid. Alloy 20 also has good mechanical properties at both ambient as well as elevated temperatures.Alloy 20  is often termed as a superalloy. ASTM B462/ ASME SB462 Uns N08020 Blind Flange has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides as well as in acidic medium or conditions that contain acidic solutions like sulfuric, phosphoric, and nitric acids.

The addition of  niobium in the Alloy 20Cb-3 Weld Neck Flange has been done in order to stabilize the alloy against sensitization and prevention of the resultant intergranular corrosion. The ASTM B462/ ASME SB462 Uns N08020 Blind Flange is also resistant to stress related corrosion cracking.

Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. Orifice flanges generally come with either raised faces or RTJ (Ring Type Joint) facings. They are, for all intensive purposes, the same as weld neck and slip-on flanges with extra machining. They have modifications of radial tapped holes in the flange ring for meter connections and orifice plate carriers for the reason of fitting meter connections. The additional bolts act as a jack to allow the separation of the two flanges to change the orifice plate or for other inspection services. Skyland Metal And AlloysInc. offers these flanges in stainless steel material. For carbon steel, We not only stock certain sizes of this flange, but has been a reputable source for them for over thirty years. We usually supply the plate, pressure connection holes, and jack screws with the orifice flange unit (which is usually two flanges mated together and ready for use) Please contact our sales department with additional questions on orifice flanges.

Key Features:

• Available with raised face or RTJ face
• Used for flow/rate metering of piping systems
• SFF can supply the plate, pressure connection holes, and jack screws with the orifice flange uni

Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. Pairs of pressure "Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary.

Orifice Flanges generally come with either Raised Faces or RTJ (Ring Type Joint) facings. They are, for all intensive purposes, the same as weld neck and slip on flanges with extra machining.

The image on the right shows a set Orifice Flanges, where a Orifice Plate is mounted and a jack screw is machined. This jack screw is used to facilitate separating the flanges for inspection or replacement of the Orifice Plate and gaskets.

The range of orifice flanges covers all standard sizes and ranges, and all common flange materials. Flanges are available in Welding Neck, Slip On, and Threaded form, and are typically supplied with two 1/2" NPT tappings in each flange.

ASME B16.36 covers Dimensions and dimensional tolerances from orifice flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following flanges:

• WELDING NECK CLASSES 300, 400, 600, 900, 1500, 2500
• SLIP ON CLASS 300
• THREADED CLASS 300

Socket Weld flanges were initially developed for use on small-size high pressure piping. Their static strength is equal to Slip On flanges, but their fatigue strength 50% greater than double-welded Slip On flanges.

The connection with the pipe is done with 1 fillet weld, at the outside of the flange. But before welding, a space must be created between flange or fitting and pipe.

ASME B31.1 1998 127.3 Preparation for Welding (E) Socket Weld Assembly says:
In assembly of the joint before welding, the pipe or tube shall be inserted into the socket to the maximum depth and then withdrawn approximately 1/16" (1.6 mm) away from contact between the end of the pipe and the shoulder of the socket.

The purpose for the bottoming clearance in a Socket Weld is usually to reduce the residual stress at the root of the weld that could occur during solidification of the weld metal. The image shows you the X measure for the expansion gap.

The disadvantage of this flange is right the gap, that must be made. By corrosive products, and mainly in stainless steel pipe systems, the crack between pipe and flange can give corrosion problems. In some processes this flange is also not allowed. I am not an expert in this matter, but on the internet, you will find a lot of information about forms of corrosion.

Also for this flange counts, that principle always firstly a pipe must be welded and then just a fitting.

In Aramco Flanges, we offer wide range of variety in sizes with Huge & Ready Stock. We supply standard sizes Flanges as per Saudi Aramco Requirement.

We supply only prime and good quality materials with Mill test certificates and also we provide third party inspection agency as per our client or consultant requirement.

FLANGES:

Weldneck | Slipon | Blind | Threaded | Flat Face | Spectacle Blind | Socketweld

Standards: ASME / ANSI / DIN / JIS / BS / GB

Dimensions: B16.5 / B16.47 – A105 / A182 / A240

Size Range:

Size: 1/2 Inches to 48 Inches

Type: ANSI, BLRF, Lap Joint, RTJ, SOFF, SORF, SWRF & WNRF

MOC: Alloy Steel, Carbon Steel, Duplex, High Nickel Alloys, Mild Steel, Stainless Steel & Super Duplex.

Prime Materials with EN 10204 Type 3.1 & 3.2 Certificates

Mills we offer:
European, Japanese & Korean Make.

Industries we Served of Saudi Aramco

EPC Contractor
Fabrication
Oil & Gas Industrie

Above materials can be provided along with third party inspection agencies like DNV, TUV, Veloci, BVS, IRIS, SGS, TECHNIP, TATA, Etc.

A flange is a forged or cast ring of steel designed to connect mechanically sections of pipe or join pipe to a pressure vessel, pump, valve or any other piece of equipment.

Steel flanges provide an easy access for cleaning, inspection or modification. They usually come in round shapes but they can also come in square and rectangular forms. The flanges are joined to each other by bolting and joined to the piping system by welding or threading and are designed to the specific pressure ratings; 150lb, 300lb, 400lb, 600lb, 900lb, 1500lb and 2500lb.

A flange can be a plate for covering or closing the end of a pipe. This is called a blind flange. Thus, flanges are considered to be internal components which are used to support mechanical parts.

Each flange material is to be considered for its application prior to ordering, this is due to the structural integrity of the application that the flange will be used on.

• Grades: 304/L, 316/L, 317L, 309, 310, 321, 347, 904L, SMO
• Range: ½” (15 NB) to 48 “ (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS,ASA 150, ASA 300

• Socket Weld
• Slip On
• Blind
• Lapped
• Screwed
• Weld Neck
• Long Weld Neck
• Reducing
• Spectacle
• Ring Joint

• • Weldneck Flanges

  • Blind Flanges

  • Spectacle Blind Flanges

  • Slip On Flanges

  • Orifice Flanges

  • High Hub Flanges

  • Socket weld Flanges

  • Flat Flanges

  • Loose Flanges

  • Square Flanges

  • Threaded Flanges

  • Ring Type Joint Flanges

  • SORF Flanges

  • BLRF Flanges

  • Groove & Tongue Flanges

  • Expander Flanges

   

  • ASME B16.5 Flange

  • ASME B16.47 Flange

  • ASME B16.36 Flange

  • DIN Flange PN6-PN40

  • JIS B2220/B2291 Flange

  • BS 4504 Flanges

  • BS 10 Flanges

  • Pr EN 1092-1 Flanges

Stainless Steel 304 Blind Flanges

Stainless Steel 304L Socket Weld Flanges

Stainless Steel 304H Threaded Flanges

Stainless Steel 310 Weld Neck Flanges

Stainless Steel 310S Reducing Flanges

Stainless Steel 316 Lapped Joint Flanges

Stainless Steel 316L Orifice Flanges

Stainless Steel 316H RTJ Flanges

Stainless Steel 317 Screwed Flanges

Stainless Steel 317L Loose Forged Flanges

Stainless Steel 321 Plate Flanges

Stainless Steel 321H SWRF Flanges

Stainless Steel 347 SORF Flanges

Stainless Steel 347H WNRF Flanges

Stainless Steel 446 Expander Flanges

We SKYLAND METAL AND ALLOYS INC. can offer wide range of Monel Flange / Monel K400 Flanges / Monel K500 Flanges from ready stock or on make to order basis.

We stock, supply, export, wholesale Monel Flange / Monel K400 Flanges / Monel K500 Flanges which are used in applications of Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

We can supply smaller quantities of Monel Flange / Monel K400 Flanges / Monel K500 Flanges from our associated manufacturing unit for flanges in India.

If any requirements for Monel Flange / Monel K400 Flanges / Monel K500 Flanges do contact us.

• Size: 1/8"NB TO 30"NB IN
• Class: 8000 LBS, 6000 LBS, 9000 LBS
• Type: Nipo Flange , Blind Flange , SORF Flange
• Grade :- Stainless Steel , Carbon Steel , Alloy Steel

These WELD NECK PIPE FLANGES attach by welding the pipe to the neck of the flange. This transfers stress from the flange to the pipe instead. Weld neck flanges also reduces the stress concentration from the base of the hub. Weld neck flanges are often used for applications where high pressure is a factor. The inside diameter of the flange is designed to match the pipe's inside diameter. Weld Neck Pipe flanges with a hub have published specifications that range from 1/2" thru 96". Our company provides these in all material grades, specifications and sizes.

Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16" for weld neck pipe flanges under 400#. For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4".

Available Materials: Stainless Steel, Carbon Steel, Aluminum

SKYLAND METAL AND ALLOYS INC.  manufactures weld neck pipe flanges in all steel material grades, including carbon weld neck pipe flanges, stainless steel weld neck pipe flanges and alloy weld neck pipe flanges. Coastal Flange also has many different weld neck pipe flanges in stock and ready to ship. Weld neck pipe flanges in stock include ANSI B16.5 weld neck pipe flanges, ASME B16.47 Series "A" weld neck pipe flanges, ASME B16.47 Series "B" weld neck pipe flanges, Pressure Vessel weld neck pipe flanges. Coastal Flanges also manufactures custom weld neck pipe flanges per customer requirements.

The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made.

We are manufacturer of Blind Flanges and supply high quality Blind Flanges in both large and small quantities worldwide and offer you the best prices in the market.