Super Duplex Steel Slip On RF Class 1500 3" ASTM / ASME A240 - UNS S32750 Flanges

Super Duplex Steel Slip-on RF Class 1500 3" ASTM/ASME:A240 -UNS S32750 Flanges

Difference between neck butt welding flange and neck flat welding flange

1. The weld forms are different: the weld between the pipe with neck flat welding flange and the flange is a fillet weld, while the weld between the pipe with neck butt welding flange and the pipe is a circumferential weld;

2. Different materials: the material of the neck flat welding flange is machined from the ordinary steel plate with the thickness meeting the requirements, while the material of the neck butt welding flange is mostly machined from forged steel parts;

3. Different nominal pressures: the nominal pressure of the neck flat welding flange is 0.6-4.0mpa, while the nominal pressure of the neck butt welding flange is 1-25mpa.

4. Another point is that the welds connecting the neck butt welding flange and the nozzle belong to class B welds, and the welds connecting the neck flat welding flange and the nozzle belong to class C welds. The post welding NDT is different.

5. The neck flat welding flange and the neck butt welding flange cannot be replaced at will. From the perspective of manufacturing, the neck flat welding flange (so is the abbreviation of slip on) has a large inner diameter, which means that the weight is small and the cost is low. In addition, the neck butt welding flange with a nominal diameter greater than 250mm (WN is the abbreviation of weld neck) needs to be tested, so the flange does not need to be tested, so the cost is low

2507 is a Ferritic Austenitic (dual phase) stainless steel, which combines the most beneficial properties of many ferritic steels and austenitic steels. Due to the high content of chromium and molybdenum in this steel, it has excellent resistance to pitting corrosion, crevice corrosion and uniform corrosion The dual phase microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength

2507 stainless steel is used in the oil and natural gas industry; Offshore skyshattering oil platform (heat exchanger pipe, water treatment and water supply system, fire protection system, water spray system, water stabilization system; petrochemical equipment; desalination (Desalination) equipment (and high-pressure pipe and seawater pipe in the equipment); Mechanical and structural components requiring both high strength and high corrosion resistance; Combustion (waste) gas purification equipment. Main composition: 25cr-7ni-4mo-0.27n

Q1: Are you trading company or manufacturer ?

A: We are factory.

Q2: How long is the delivery ?

A: 15-30 working days

Q3: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

If you want to get more information of the products, send me e-mail or by skype, whatsapp etc.

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If any questions,you can call me mobile phone at any times:0086-15710108231

TOBO GROUP sales head offce in Shanghai.

We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians.

We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories. Now, it owns a number of advanced pipe production equipments, metal, forging, machining, cold forming, hot extrusion, such as heat treatment process, producing 60, 000 tons of pipe fittings. Company with a variety of detection devices, such as nondestructive testing, chemical analysis, metallographic examination, physical experiments. The technical is very strength, our main products contain fittingsforged socket welding fittings and threaded fittings, pipe weld and the materials of the products contain stainless steel ,duplex-stainless steel alloy steel.

In addition, we are authorized by more than 120 top-class mills from South Korea,Japan and China like JFE,SUMITOMO,POSCO,BAOSTEEL, TISCO,LISCO,.TPCO,HENGYANG VALIN and so on .

Our main products as follows:

• Stainless steel pipe & tube

(seamless pipe / welded pipe / square pipe / rectangular tube,duplex stainless / inconel tube)

• Carbon / alloy steel pipe & tube

(seamless pipe / ERW / SSAW / LSAW / UOE / hollow section pipe / Galvanized Pipe)

• Tubing and casting

(line pipe,water pipeline,gas pipeline,oil pipeline)

• Special steel tube

(copper tube/titanium tube/aluminium tube/nickel alloy )

• steel bar

(round bar/angle steel /flat steel/channel steel/steel wire)

• Pipe Fittings

(eblows, equal / reducing tees, concentric/eccentric reducers, caps, crosses, bends, dish end/end cup, stub ends, unions, couplings / hex couplings, swage nipples , nipples, hex. plug, sockolet, weldolet, thredolet, etc)

• Flange

(DIN flange/ AISI flange/blind flange/welding flange/stainless flange/slip on flange)

• steel sheet / coil

(stainless steel/carbon steel/alloy steel/galvanized steel/aluminium )

• Valve

(ball valve/gate valve/butterfly valve/globe valve/swing check valve/ check valve)

In order to comply with the global modernization services development trends and eliminating the varieties distress of the global enterprise‘s purchase in the consumables.. We coordinate the pressure pipe manufacturer which with the scale of production,quality control and high cost performance (has passed ISO 9001 quality series attestation, ccs, DNV,PED/97/23/EC,AD2000-WO,special equipment manufacturing license,ASME-SA182.through a variety of effective assort mechanism to make up the shortage of supply and Post-processing of VAT enterprise, and to supply high quality pipe fittings, because of the superior quality and good service, we have established long term business cooperation with more than 60 countries and areas,which covers Europe, Africa, South America, North America, Middle East, Taiwan and South East Asia and so on.

With many years effort and support from our valuable customers, these products have obtained a big market share in the world.

Our business principle is "Superior quality, Competitive price, Timely delivery and Considerate service " Standing to the principle of “Enterprises focus on the core business”, TOBO will actively promotes the globalization of business strategy approach, using advanced supply chain management technology to service for clients with higher quality and more competitiveness ‘ s products. At the same time, we sincerely reply your inquiry, honesty waiting for your visiting and wish to have cooperation with you at the any time. We welcome all the customers to contact us for more information. We assure you, with our technical knowledge and experience, our company will be one of your Stable, Continuate business parters in China.

info@tobo-group.com