Butt Weld Pipe Fittings

While 300 series stainless steels are very popular, they are not universally suitable for all process piping applications. For example, even though they are corrosion resistant, 300 series formulations do not perform well in the presence of chlorides. In these cases, steels with much higher alloy contents such as molybdenum, chromium and nickel are preferred.

Type 316 is much more resistant to sulfuric acid solutions than any other chromium-nickel type. Type 316 is resistant to acid concentrations up to 5% at temperatures up to 120¡ãF (49¡ãC). This type has excellent resistance to higher concentrations at temperatures below 100¡ã F (38¡ã C).

In general, the Type 316 grade can be considered equally good in a given environment. A notable exception is intergranular corrosion in the heat-affected zone on welds and susceptible alloys in sufficiently corrosive environments. In such media, Type 316L is more suitable for welding conditions than Type 316 because the low carbon content increases resistance to intergranular corrosion.

Type 316 alloy is considered suitable for some marine environment applications, such as ship rails and hardware, and the exterior walls of buildings near the ocean that are exposed to salt spray. Type 316 stainless steel shows no evidence of corrosion in the 100-hour, 5% salt spray (ASTM-B-117) test.

Sustained or prolonged exposure of Type 316L to 800-1500¡ãF (427-816¡ãC) may be harmful. In addition, stress relief between 100-1500¡ãF (593-816¡ãC) may cause this Type of slight embrittlement.

Austenitic stainless steels are susceptible to stress corrosion cracking (SCC) in halide environments. Although type 316 alloys are more resistant to SCC than 18Cr-8 Ni alloys due to their molybdenum content, they are still susceptible. Conditions that produce SCC are: (1) the presence of halide ions (usually chloride ions), (2) residual tensile stress, and (3) temperatures in excess of about 120¡ãF (49¡ãC).

Grade 825 Incoloy alloy used to make butt welded pipe fittings has high corrosion resistance. It contains a high nickel content, sufficient to resist chloride ion stress corrosion cracking, and a very stable austenitic structure.

An important feature of Incoloy UNS N08800 Elbow is that it not only exhibits good mechanical properties at ambient temperature conditions, but also performs well at high temperature settings up to 1000¡ãF.

Incoloy 825 alloy is a nickel-iron-chromium alloy that combines molybdenum, copper and titanium for excellent resistance to many corrosive environments. Incoloy 825 is very corrosion resistant. It has a high nickel content, sufficient to resist chloride ion stress corrosion cracking, and a very stable austenitic configuration.

HASTELLOY C-276 alloy is available in the form of plates, sheets, strips, billets, bars,
wires, pipes, tubes, and covered electrodes.

The UNS S32760 Pipe Fittings have high tensile strength, durability, and excellent corrosion resistive property. The specifications of SA 815 WPS S32760 Elbow has criteria like size, standard, type and many more.

The ASTM B366 Pipe Fittings that we, Steel Tubes India, manufacture, are covered under the specification for nickel alloy pipe fittings and these include the likes of Hastelloy, Inconel, Nickel Alloy and Monel.

These pipe fittings of B366 N06601 B366 N08825 B366 N10276 B366 N08020 materials, are used in the chemical industry, as well as in pressure vessels.

B16.11 Forged Fittings, Socket-Welding and Threaded ASTM B366 specification covers Inconel, Monel, Hastelloy and Nickel Alloy Pipe Fittings used in acidic and sea water.

ASTM A403 WP317L is a molybdenum bearing, low carbon content “L” grade austenitic stainless steel that provides improved corrosion resistance over 304L and 316L stainless steels. ASTM A403 WP317 Pipe Fittings could be a altered adaptation of Stainless Steel 317L Pipe Fittings.

The regular products of A403 WP321 pipe fittings are elbows,tees,reducers,caps,cross.

317L is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding.Fittings supplied under this specification shall be examined visually for surface discontinuities, surface checks, and mechanical marks.

Stainless Steel Duplex 2205 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. Duplex 2205 is a nitrogen enhanced stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels.

Monel 400? is a nickel-copper alloy that is hardened by cold working only. The various types of available fittings are Monel Stub end, Monel Reducer, Monel End Cap Fittings, Monel tee, etc.

Monel 400? has low corrosion rate in flowing seawater, therefore it is widely used in marine applications.We make use of the best manufacturing techniques for their production so that the final product being served to the customers is the best of best.

Monel 400? also has excellent resistance to stress corrosion cracking in most freshwaters.Our Monel Long Radius Elbow Fittings is available at various angles like 30 degrees, 45 degrees, and 90 degrees.

825 is an austenitic Ni – Fe – Cr – Mo – Cu nickel based alloy developed to resist corrosion in very aggressive media.Alloy 825, also known as Incoloy 825, is a nickel-iron-chromium alloy with molybdenum and copper added.

Monel 400? can be used in temperatures up to 1000 oF. Monel K-500 is basically a better version of 400 and has higher strength and hardness.

It exhibits exceptional corrosion resistance in chemical environments containing phosphoric acid, nitric acid, chlorides and sulfuric acid. It also has good mechanical properties at both ambient and elevated temperatures.

The alloy has great mechanical properties at subzero temperatures.For catering to the needs of our customers better, it is essential that we manufacture Monel Pipe Fittings in different types, with each one serving some specific purpose.

We are a professional manufacturer and exporter of ASTM B366 WP20CB Pipe Fittings N08020 elbow, Alloy 20 Elbow Tee reducer Caps

Monel 400? sheet is available in thicknesses ranging from .018 to .140″.Butt-weld and forged fittings are available or can be manufactured with short lead times.

HASTELLOY C-276 alloy (UNS N10276) was the first wrought, nickel-chromiummolybdenum material to alleviate concerns over welding (by virtue of extremely low carbon
and silicon contents).

We warmly welcome our regular and new clients to join us for ASTM Seamless Tee B366 (WP20CB, UNS N08020, Alloy20).

ASTM A815 UNS S32760 fittings is the one where the strength is excellent and the corrosion resistance is excellent.The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products.

ASTM A815 specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction.