Weld repair of 310s stainless steel pipe crack

Nickel Alloy 400 and Monel 400, also known as UNS N04400, is a ductile nickel-copper-based alloy consisting primarily of two-thirds nickel and one-third copper. Nickel Alloy 400 is known for its resistance to a variety of corrosive conditions, including alkalis (or acids), salt water, hydrofluoric acid, and sulfuric acid. Since Monel 400 or Alloy 400 is a cold worked metal, this alloy has high hardness, stiffness and strength. By cold working ASTM B164 UNS N04400 bar stock, the alloy is subjected to higher levels of mechanical stress, which in turn causes changes in the alloy’s microstructure.

Inconel 625 Coil is characterized by its excellent resistance to oxidation, high-temperature corrosion and fatigue. ASTM B443 UNS N06625 Inconel Plate is widely used in the aerospace, chemical processing and oil and gas industries due to its superior strength, toughness and durability even in extreme environments.

Inconel 718 is a nickel-chromium-based alloy that is commonly used in high-temperature applications such as aerospace and gas turbines. One of the most important factors in the production of ASTM B670 Inconel 718 Sheet is the plate rolling process. There are two main types of Inconel 718 plates available on the market: hot rolled and cold rolled plates.

ASTM A312 TP316 is a standard specification for seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipes used in high-temperature and general corrosive service applications. The 316 Seamless Industrial Steel Pipe is made from a combination of chromium, nickel, and molybdenum, which gives SS 316 Seamless Tube excellent resistance to corrosion and rust.

Nickel-copper-based alloy 400 Monel 2.4360 cold drawn rod is virtually immune to chloride stress-related corrosion cracking when exposed to corrosive media in typical environments. Monel 400 is a copper and nickel based alloy that is popular today due to its high performance. The alloy has excellent acid and alkali resistance. In addition, it has good tensile strength, ductility, excellent thermal conductivity, and can be hardened by cold work. Additionally, it can be used in applications with temperatures ranging from minus to 538 degrees Celsius.

SMO 254 Pipes can withstand high mechanical stress and Alloy 254 SMO Pipe high pressure work in high temperatures and corrosive environments.

Nilo / Alloy K W.Nr.: 1.3981
UNS: K94610 ASTM F15
Fixed-expansion glass-encapsulated iron-nickel-cobalt alloys, Kovar alloys, have a linear thermal expansion coefficient similar to that of hard glass within a certain temperature range
For mating sealing with hard glass

Nickel based 800 Incoloy Hexagonal Pipe is known to have a good resistance to corrosion. Specifically speaking, the Incoloy 800 Pipe offers sufficient resistance against both carburization as well as oxidation corrosion.

Hastelloy Alloys Directory
The Corrosion Resistant HASTELLOY alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries.

Inconel 600 seamless tubes of standard UNS N06600 and ASTM B167 are the ones manufactured to sustain excessively high pressure and come with great warranty.

Nilo Alloy 36, W.Nr 1.3912, Invar 36® is a nickel-iron, low controlled expansion alloy that contains 36% nickel and possesses a rate of thermal expansion approximately one-tenth that of carbon steel.
Invar 36 Specifications: UNS K93600, W.Nr 1.3912

It is widely used in offshore oil and gas exploration/production and in heat exchangers in petrochemical/chemical processing.

Alloy 800 is a nickel-iron-chromium alloy with high strength and excellent resistance to oxidation and corrosion at high temperatures. ASTM B407 UNS N08800 Incoloy 800 W. Nr. 1.4876 Welded Pipe is widely used for construction of equipment requiring corrosion resistance, heat resistance, strength, and stability for service up to 1500°F (816°C).

Higher chromium, molybdenum and nitrogen content results in a Pitting Resistance Equivalent Number (PREN) > 40, providing superior pitting and crevice corrosion capabilities to austenitic and duplex stainless steels in virtually all corrosive media, and critical pitting temperature Above 50¡ãC .

A789 UNS S31803 and UNS S32205 are two grades of duplex stainless steel that are widely used in various industrial applications. These Duplex S31803 Seamless Pipes are known for their excellent corrosion resistance, high strength, and good weldability. A789 is a specification that covers seamless and welded tubes made from duplex stainless steel.

SCH40 Monel 400 Pipe is designated as Werkstoff Number 2.4360 and UNS N04400. Alloy 400 Pipe also known as Monel Alloy 400 Pipe, Monel 400 Pipe & Nickel Alloy 400 Pipe.

It demonstrates good resistance to neutral and reducing environments. This alloy creates a tenacious oxide, protective film that does not spall off, but it retains superior oxidation resistance at soaring temperatures.

Incoloy 800H Flange We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

ASTM A240 Type 2205 Plate is a duplex stainless steel plate that is used extensively in various industries such as chemical processing, oil and gas exploration, and marine engineering. SA 240 GR 2205 Sheet is made from grade 2205 stainless steel, which is a combination of ferritic and austenitic steel.

The pipes of seamless configurations have higher load-bearing capacity and strength over other grades.

Titanium’s density is about 60% that of stainless steel and nickel alloys, this weight saving makes it a popular choice in applications where this is critical such as aerospace.

Hastelloy C2000 Tubes are used in a broad range of industries including petrochemical processing, chemical processing equipment manufacturing, oil refineries and power plants.

UNS N08367 also commonly referred to as alloy AL6XN is a low carbon, high purity, nitrogen-bearing “super-austenitic” nickel-molybdenum alloy with excellent resistance to chloride pitting and crevice corrosion.

It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

316L 1.4401 S31603 Stainless Steel Pipe is a highly versatile and durable pipe option commonly used in a wide range of industrial and commercial applications. This SS UNS S31603 pipe is made from high quality 316L stainless steel with excellent resistance to corrosion, oxidation and staining, making it ideal for harsh environments or high stress applications.

ASME B36.19M is the standard specification for stainless steel pipes, which specifies the dimensions, tolerance, and manufacturing requirements for both welded and seamless pipes.

This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

Alloy 800 Weld Neck Flanges We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

304 Piping Spools are made of 304 Stainless Steel, a common and popular material in many industrial applications that require resistance to corrosion and oxidation. These S30400 Piping Spools are prefabricated using specialized machinery and processes, which ensure that they are highly accurate and reliable.

AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. AL6XN is a 6 moly alloy that was developed for and is used in highly aggressive environments. It has high nickel (24%), molybdenum (6.3%), nitrogen and chromium contents that give it excellent resistance to chloride stress corrosion cracking, chloride pitting, and exceptional general corrosion resistance. AL6XN is primarily used for its improved pitting and crevice corrosion resistance in chlorides. It is a formable and weldable stainless steel.

For maximum strength alloy 617 (ERNiCrCoMo-1) bare wire or 117 (ENiCrCoMo-1) covered electrodes are suggested.

The purpose of preparatory heat treatment is to improve processability, eliminate internal stress and prepare a good metallographic structure for final heat treatment. The heat treatment process includes annealing, normalizing, aging, quenching and tempering, etc.

Stainless Steel UNS N08904 stud bolt is hardnable and martensitic stainless steel with corrosion resistance similar to Type410, and also has higher carbon content to increase strength and hardness over Type 410. These stainless steel DIN1.4539 stud bolts can also be hardened through heat treatment, where in the instance, the material is heated to a minimum of 1472 degree F then quenched and cooled.

The minimum yield strength of the flanges is 517MPa and the minimum tensile strength is 930MPa. These are relatively high strength flanges compared to most stainless steel flanges. The high strength of the Inconel alloy 625 Slip on Flanges and the other types comes from the material composition. The material is made up of 58% nickel, 20% chromium, carbon, manganese, silicon, sulfur and 5% iron. The high nickel and chromium content make the flanges highly corrosion resistant.

Though it is important to keep in mind that pitting corrosion can be a concern in chloride solutions when oxidizing media is present. In these conditions, the passive (protective) layer of the Duplex 2205 material may be compromised in localized pitting may occur.

304/304L is a versatile stainless steel widely used in the manufacture of equipment and components that require a good combination of properties (corrosion resistance and formability). 304 stainless steel is produced in accordance with the American ASTM standard stainless steel grade a. 304 contains 19% chromium and 9% nickel. 304 is the most widely used stainless steel, heat-resistant steel, utility steel, and steel industry. Used in food production equipment, general chemical equipment, nuclear energy, etc. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.19

2507 has a higher chromium and molybdenum content which gives the super duplex greater corrosion resistance than other standard duplex grades.

Alloy C276 nickel alloy plate is one of the premier corrosion resistant materials that performs exceptionally well in both oxidizing and reducing environments. Therefore the Haynes Alloy C276 N10276 Polished Plate is used in industries such as pulp and paper production, chemical processing, pollution control, industrial and municipal waste treatment, as well as for the recovery of sour natural gas in sour wells.

Stainless Steel 347 Flanges
Featuring 347 stainless steel for very good corrosion resistance, this GRAINGER APPROVED weld neck flange can be attached to a system via a circumferential weld at the neck. The welded area can be easily examined by radiography. Matched pipe and flange bore reduces turbulence and erosion inside the pipeline. Flange is excellent for use in your critical applications and is ideal for use with air, water, oil, natural gas, and steam.

Light gauges of 2507 material can often be used to achieve the same design strength of thicker nickel alloys. Duplex 2507 plate is suitable for applications requiring excellent strength and corrosion resistance. It contains 25% chromium, 4% molybdenum and 7% nickel.

Duplex Steel UNS S31254 Slip On Raised Flanges combines moderate mechanical strength (typically over 300 MPa yield strength) and high ductility with excellent corrosion resistance in seawater and a variety of industrial environments.

Hastealloy is a term that refers to a group of corrosion resistant metal mixtures that are based on nickel. Hastealloys have a unique combination of properties that provide them with significantly stronger corrosion resistance capabilities compared to traditional alloys. As such, it was widely accepted in the chemical process and associated industries, and now has a 50-year-old track record of proven performance in a vast number of corrosive chemicals.

There are SA 182 F53 S32750 Blind Flanges, socket weld flanges and weld neck flanges in this range of material. The different flanges are used in different applications set ups.

The UNS S31254 Weld Neck Flange is also characterized by its high ductility as well as high impact strength. With high levels of chromium, molybdenum, and nitrogen content , the alloy is frequently used in high chloride containing environments. For example, the UNS S31254 Pipe Flange is used in environments such as seawater, brackish water, pulp mill bleach plants, and other chloride process streams.

Because stainless steel 304 pipe is an alloy with a minimum of 18% to a maximum of 20% chromium, the metal forms a self-healing, passivating oxide layer on the surface of the pipe.

Our ASTM A320 Grade L7M Alloy Steel Bolts are suitable for meeting commercial and industrial needs such as grills, infrastructure, grills and construction.

When standard 90-degree elbows won¡¯t work with your system design or space requirements, bent pipes and tubing are an excellent routing option.

Grade 304L is a low carbon version of 304 which does not require post weld annealing and is therefore widely used for heavy duty components (about 6mm+). The higher carbon grade 304H can be used at elevated temperatures. The austenitic structure also gives these grades excellent toughness, even at low temperatures.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.51

The major differences between these alloys are their mechanical properties which stem from the restricted compositions of alloys 800H and 800HT and the high-temperature anneals used for these alloys.

Nickel alloy pipes are composed of alloys with nickel as the main element. It is widely used for its high temperature strength, corrosion resistance, thermal expansion, special magnetic properties.

A182 F53 material displays excellent corrosion resistance.

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.

Alloy Steel A182 F12 Flanges has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. Alloy Steel F12 Blind Flanges also possesses a great resistance to pitting in chloride solutions, a great resistance to crevice and stress corrosion cracking.

316 Stainless Steel Characteristics
Type 316 stainless steel tubing is similar to 304, but with the addition of molybdenum, which improves the alloys corrosion resistance. The austenitic structure allows excellent toughness, even down to extremely low temperatures. These grades have excellent weldability, with or without the addition of filler metal. 316 / 316L stainless tube is available as round, square or rectangular shapes. It is available as welded and seamless. It contains additional molybdenum and nickel than 304 stainless, which increases corrosion resistance of the metal. Decreased weldability is exhibited in 316L alloys due to increased carbon in the alloy. It is used for tube in more aggressive environments than 304 tube.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.20

Seamless pipe lacked this perceived structural flaw and was considered safer. While it¡¯s true that welded pipe does include a seam that makes it theoretically weaker, manufacturing techniques and quality assurance regimens each have improved to the extent that welded pipe will perform as desired when its tolerances aren¡¯t exceeded.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

ASTM A234 WP9 Alloy Steel Pipe Fittings are known to deliver exceptional performance and are generally developed for meeting the demands.Extraordinary safeguards for these Alloy Steel WP9 Dish Cap Butt Weld Pipe Fittings ought to be taken to stay away from intemperate heat input.

316 stainless steel washer is commonly used in gas/oil/oil, aerospace, food and beverage, industrial, cryogenic, construction and marine applications. 316 stainless steel has high strength and excellent corrosion resistance, including in marine or extremely corrosive environments. At the same time, stainless steel 316 washer is an austenitic stainless steel grade tube with good resistance to chloride ion corrosion stress cracking. Therefore, the pipe can be easily used for marine and seawater applications.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

The seamless pipes can easily slip onto the flange and reach the precise connection location. The ASTM B564 Monel 400 Lap Joint Flanges and other flanges can also come as threaded, forged, screwed or plate flange types. We could do solution treatment and ageing treatment for Monel K-500 forging flanges as per the clients. Monel is based on nickel (65-70%) and copper (20-29%) and also contains iron and manganese (5%) and other compounds.

Stainless steel bars are manufactured through a forging process. Here, the steel passes through several rolls and raw materials such as billets and blooms are heated to around 1200 degrees Celsius. It exceeds the recrystallization temperature of steel.