Duplex Steel & Engineering Company Bhuleshwar, Mumbai, Maharashtra

We stock Stainless steel Plates, Sheets, Coils of the Grades SS304, SS304L, SS309, SS310,SS314, SS316, SS316L, SS317L, SS321, Duplex 2205, Duplex 31803, Duplex 1.4462, Super Duplex UNS S32750, Super Duplex 2507, Super Duplex 32760, 904L, SMO 254, 253MA, AL-6XN, Inconel 600, Inconel 625, Inconel 800, Inconel 825, Alloy 20, Hastelloy C276, Hastelloy C22, Nickel 200 Nickel 200. We also Stock Pipes and Fittings in the above grade.

Thickness : 0.5mm to 120mm

Certification : As per requirement

Length : As required

Grade : SS304

Steel Grade : SS304

We offer the clients with a wide range of Stainless Steel Plates that is made of qualitative materials, which are procured from reliable vendors. Our expertise in this has enabled us trade across the globe and maintain a healthy relationship with our clients. We bring forth these Stainless Steel Plates in various sizes as specified by our clients. Range : 0.5 mm To 200 mm thick in 1000 mm TO 2500 mm width 2500 mm to 12500 mm Length available with NACE MR 01-75 Grades : Stainless Steel Sheets, plates, coils: Standards: ASTM / ASME SA 310 Features : Sturdy construction Smooth surface Corrosion resistant Durable

We are listed at the apex in the list of the well-reputed Stainless Steel Pipes Manufacturers and Exporters from India. Our range of Stainless Steel Pipes is appreciated for its unmatched quality and unsurpassable performance among the buyers. Additionally, Stainless Steel Pipes offered by us are available in varied sizes and dimensions meeting the specifications provided by the clients. Standards : ASTM / ASME A / SA 269 / 213 /249 Sizes : 1/8� NB � to 36� NB x SCH10, 20, 40, 60, 80, 100, 120, 140, 160, XXS Special Features : Smooth surfaceSturdy constructionCorrosion resistantDurable

We are listed as one of the dependable Stainless Steel Pipe Fittings Manufacturers and Suppliers in India. The stainless steel 310 & 309 used in the manufacturing of the Stainless Steel Forged Pipe Fittings ensures high durability, tensile strength and resistivity to adverse conditions. The Stainless Steel Pipe Fittings offered by us are available in varied specifications. Grades Available : ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H Known For : High durability Excellent finishing Superior quality Sturdiness

Material : 304, 304L, 304H, 309S, 310S, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347H

We are enlisted amongst the well-reputed Stainless Steel Flanges Manufacturers and Exporters from India. The Forged Stainless Steel Flanges offered by us are manufactured complying with the standards Additionally, Stainless Steel Pipe Flanges are also available in different grades and other specifications to meet the requirements of the clients. Standards : ASTM / ASME A/SA 182 Grades Available : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L. Features : Corrosion resistant Superior quality Fine finish Sturdy construction Durable

Material : SS304, SS316, SS310, SS304L, SS316L, SS317L, SS321, S32205, S31803,

Brand Name : Jindal

Material : Stainless Steel

Finishing : Polished

Usage : Industrial

Shape : Roll

Material Grade : SS 310S

The company is enlisted among the topmost Manufacturers, Exporters and Suppliers of SS317L Stainless Steel Products. Our products are fabricated using superior grade stainless steel and advanced machines to ensure excellent quality and perfect finish. Our products have wide application in numerous industries and we offer them in required specifications. Buyers can place bulk as well as urgent orders with us! General Properties : Alloy 317L is molybdenum-bearing austenitic stainless steels with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Alloy 304. In addition, 317L alloys offer higher creep, stress-to-rupture, and tensile strengths at elevated temperatures than conventional stainless steels. All are low carbon or "L" grades to provide resistance to sensitization during welding and other thermal processes. The combination of molybdenum and nitrogen is particularly effective in enhancing resistance to pitting and crevice corrosion, especially in process streams containing acids, chlorides, and sulfur compounds at elevated temperatures. Nitrogen also serves to increase the strength of these alloys. Both alloys are intended for severe service conditions such as flue gas desulfurization (FGD) systems.Resistance to Corrosion : Alloys 317L stainless steels is more resistant to atmospheric and other mild types of corrosion than conventional chromium-nickel stainless steels. In general, environments that are not corrosive to 18Cr-8Ni steels will not attack alloys containing molybdenum, with the exception of highly oxidizing acids such as nitric acid. Alloys 317L stainless steels is considerably more resistant than conventional chromium-nickel types to solutions of sulfuric acid. Resistance increases with alloy molybdenum content. These alloys are resistant to sulfuric acid concentrations up to 5 percent at temperatures as high as 120oF (49oC). At temperatures under 100oF (38oC) these alloys have excellent resistance to solutions of higher concentration. However, service tests are recommended to account for the affects of specific operating conditions that may affect corrosion behavior. In processes where condensation of sulfur-bearing gases occurs, these alloys are much more resistant to attack at the point of condensation than conventional Alloy 316. The acid concentration has a marked influence on the rate of attack in such environments and should be carefully determined by service tests. The low carbon (less than 0.03%) of these alloys effectively prevents sensitization to intergranular corrosion during thermal processes such as welding or forging. The higher chromium contents of and Alloy 317L stainless steels also provide superior resistance to intergranular attack. It should be noted that prolonged exposure in the range 800 to 1400oF (427-816oC) can be detrimental to intergranular corrosion resistance and may also cause embrittlement due to precipitation of sigma phase. High molybdenum and nitrogen contents can significantly improve pitting resistance as illustrated in the preceding table of Pitting Resistance Equivalents (PRE). The PRE is based on the results of corrosion tests in which it was found that nitrogen was 30 times more effective than chromium and approximately 9 times more effective than molybdenum in enhancing chloride pitting resistance. The temperature of the onset of crevice corrosion as determined in a modified AST G-48B test is a useful means of ranking the relative resistance of stainless and nickel-base alloys. The Critical Crevice Corrosion Temperatures table that follows demonstrates that crevice corrosion resistance for austenitic stainless steels increases with the alloy's molybdenum and nitrogen content. Physical Properties : The physical property data which follows represent the iron-chromium-nickel-molybdenum class of stainless steels. For all practical purposes, the data are applicable to Alloy 317L stainless steel. All properties are at room temperature (68°F, 20°C) unless stated otherwise.

We provide SS316-SS316L Stainless Steel Products with advance features in order to ensure high efficiency and flawless performance. Our products are fabricated using premium stainless steel and the latest technology. We make available Stainless Steel Products in different technical specifications to meet the varied requirements of buyers. Our Stainless Steel Products are reasonably priced.   General Properties : Alloy 316/316L is molybdenum-bearing austenitic stainless steel. The higher nickel and molybdenum content in this grade allows it to demonstrate better overall corrosion resistant properties than 304, especially with regard to pitting and crevice corrosion in chloride environments. In addition, Alloy 316/ 316L provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability. 316L is the lower carbon version of 316 and is immune from sensitization; therefore, it is very frequently used in heavy gauge welded components.Specifications : UNS S31600 / S31603Applications : Food preparation equipment, especially in chloride environments Chemical processing, equipment Laboratory benches and equipment Rubber, plastics, pulp & paper machinery Pollution control equipment Boat fittings, value and pump trim Heat exchangers Pharmaceutical and textile industries Condensers, evaporators and tanks Standards : ASTM/ASME - UNS S31600 / S31603 EURONORM - X1 CrNiMo 17 12 2 / X3 CrNiMo 17 12 2 AFNOR - Z 6 CND 17-11 / Z 2 CND 17-12 DIN - 1.4401 / 1.4404 Corrosion Resistance : Generally more resistant than 304 in range of atmospheric environments and many corrosive media due to the increased chromium and molybdenum content. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 122°F (50oC). Considered resistant to potable water with up to about 1000mg/L chlorides at ambient temperatures, reducing to about 500mg/L at 140°F (60oC). Usually regarded as the “marine grade stainless steel” – but is not resistant to warm sea water. Heat Resistance : Good oxidation resistance in intermittent service to 1600oF (870oC) and in continuous service to 1700oF (925oC) Grade 316L is more resistant to carbide precipitation. Welding Characteristics : Excellent weldability by all standard fusion methods, both with and without filler metals. Heavy welded sections in Grade 316 require post-weld annealing for maximum corrosion resistance, this is not required for grade 316L. Heat Treatment : Annealing temperature range is 1900 to 2100oF (1038 to 1149oC). Cannot be hardened by heat treatment. Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion. Processing – Hot Forming : Most producers recommend a maximum forging temperature between 2100oF and 2300oF Do not forge below 1700°F (927oC) Best Corrosion resistance is obtained if the forgings are given a final anneal. Processing – Cold Forming : 316/316L types being extremely tough and ductile, can be readily cold worked such as roll form, swaging, cold heading, deep drawing, bent, etc., without difficulty Severely cold formed parts should be annealed to remove stresses. Machineability : Type 316/316L is somewhat more difficult to machine than Type 304 because of its toughness. 316/316L machines with chip characteristics that are tough and strong. Chip breakers and curlers are advised. As large a tool as possible and great amounts of cutting fluid should be used. Heavy positive feeds at low speeds should be considered since 316/316L work hardens rapidly.

Our SS310s Stainless Steel Products are accredited for their high strength, durability, corrosion resistance, superb finish, etc. We are the trusted Manufacturer, Exporter and Supplier of SS310s Stainless Steel Products based in India. We make available these Stainless Steel Products in any required specifications and at very reasonable rates. Place urgent orders with us!   General Properties :  Grade 310 is a medium carbon austenitic stainless steel, for high temperature applications such as furnace parts and heat treatment equipment. It is used at temperatures up to 1150oC in continuous service, and 1035°C in intermittent service. Grade 310S is a low carbon version of grade 310. Typical Applications : Grade 310/310S is used in fluidised bed combustors, kilns, radiant tubes, tube hangers for petroleum refining and steam boilers, coal gasifier internal components, lead pots, thermowells, refractory anchor bolts, burners and combustion chambers, retorts, muffles, annealing covers, saggers, food processing equipment, cryogenic structures. Description : These grades contain 25% chromium and 20% nickel, making them highly resistant to oxidation and corrosion. Grade 310S is a lower carbon version, less prone to embrittlement and sensitisation in service. The high chromium and medium nickel content make these steels capable for applications in reducing sulphur atmospheres containing H2S. They are widely used in moderately carburising atmospheres, as encountered in petrochemical environments. For more severe carburising atmospheres other heat resisting alloys should be selected. Grade 310 is not recommended for frequent liquid quenching as it suffers from thermal shock. The grade is often used in cryogenic applications, due to its toughness and low magnetic permeability. In common with other austenitic stainless steels, these grades cannot be hardened by heat treatment. They can be hardened by cold work, but this is rarely practiced. Details : Availability - Unisteels & Engg. Co. Pvt Ltd.can supply these grades as plate, sheet and strip, bar and rod, seamless tube and pipe, welded tube and pipe, forgings and forging billet, tube and pipe fittings, wire. Corrosion Resistance - Grade 310/310S is generally not used for corrosive liquid service, although the high chromium and nickel content give corrosion resistance superior to grade 304. The alloy does not contain molybdenum, so pitting resistance is quite poor. Grade 310/310S will be sensitised to intergranular corrosion after service at temperatures in range 550 – 800oC. Chloride stress corrosion cracking may take place in corrosive liquids containing chlorides at temperatures exceeding 100oC. Heat Resistance - Grades 310/310S have good resistance to oxidation in intermittent service in air up to 1035oC and 1050oC in continuous service. The grades are resistant to oxidation, sulphidation and carburisation. Fabrication - Grades 310/310S are forged in the temperature range 975 – 1175oC. Heavy work is carried out down to 1050oC and a light finish is applied to the bottom of the range. After forging annealing is recommended to relieve all stresses from the forging process. The alloys can be readily cold formed by standard methods and equipment. Machinability - Grades 310/310S are similar in machinability to type 304. Work hardening can be a problem and it is normal to remove the work hardened layer by using slow speeds and heavy cuts, with sharp tools and good lubrication. Powerful machines and heavy, rigid tools are used. Weldability : Grades 310/310S are welded with matching electrodes and filler metals. The alloys are readily welded by SMAW (manual), GMAW (MIG), GTAW (TIG) and SAW. Electrodes to AWS A5.4 E310-XX and A 5.22 E310T-X, and filler metal AWS A5.9 ER310 are used. Argon is shielding gas. Preheat and post heat are not required, but for corrosion service in liquids full post weld solution annealing treatment is essential. Pickling and passivation of the surface to remove high temperature oxides are essential to restore full aqueous corrosion resistance after welding. This treatment is not required for high temperature service, but welding slag should be thoroughly removed. Heat Treatment : Type 310/310S are solution annealed by heating to temperature range 1040 – 1065oC, holding at temperature until thoroughly soaked, then water quenching. The technical advice and recommendations made in this Product Data Sheet should not be relied or acted upon without conducting your own further investigations, including corrosion exposure tests where needed. Please consult current editions of standards for design properties. Unisteels & Engg. Co. Pvt Ltd. assumes no liability in connection with the information in this Product Data Sheet. Unisteels & Engg. Co. Pvt Ltd. supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and other high performance metals for challenging service conditions. Our engineers and metallurgists will be pleased to provide further data and applications advice.

We are reckoned as reputed Manufacturer, Exporter and Supplier of SS309s Stainless Steel Products. Our products are fabricated using high-grade stainless steel to ensure durability and excellent quality. Excellent finish, high strength, durability and corrosion resistance are some of the main attributes of our Stainless Steel Products. Place bulk as well as urgent orders with us!   General Properties : Alloys 309 and 309S are austenitic chromium-nickel stainless steels that are often used for higher temperature applications. Due to their high chromium and nickel content, Alloys 309 and 309S are highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content. Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability. Specifications : UNS S30900/S30908 Applications :Alloys 309 and 309S are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples include, but are not limited to : Heating elements Aircraft and jet engine parts Heat exchangers Carburizing annealing products Sulfite liquor handling equipment Kiln liners Boiler baffles Refinery and chemical processing equipment Auto exhaust parts  Standards : ASTM/ASME - UNS S30900/S30908 EURONORM - FeMi35Cr20Cu4Mo2 DIN - 2.4660 Corrosion Resistance : Provide excellent corrosion resistance More resistant to marine atmospheres than Alloy 304 Often used at higher temperatures to take advantage of their oxidation resistance Have high resistance to sulfite liquors Generally considered heat resistant alloys Destructive scaling temperature is approximately 2000oF Good scaling resistance with regard to continuous and intermittent service  High Temperature Corrosion :Alloy 309 resists high temperature corrosion in most in-service conditions. Operating temperatures are as follows : Oxidizing conditions (max. sulfur content–2 g/m3) 1922oF (1050oC) continuous service 2012oF (1100oC) peak temperature Oxidizing conditions (max. sulfur greater than 2 g/m3) 1742oF (950oC) maximum temperature Low oxygen atmosphere (max. sulfur content–2 g/m3) 1832oF (1000oC) maximum temperature Nitriding or carburizing atmospheres 1562–1742oF (850–950oC) maximum The alloy does not perform as well as Alloy 600 (UNS N06600) or Alloy 800 (UNS N08800) in reducing, nitriding or carburizing atmospheres, but it does outperform most heat resistant stainless steels in these conditions.Heat Treatment : Cannot be hardened through heat treatment because the consist solely of austenite at room temperature Higher tensile and yield strengths that can be obtained through cold working and not followed by full annealing are not stable at the higher temperatures where these alloys are used Creep properties can be negatively affected by the use of cold worked material at these higher temperatures Fabrication : Can be roll formed, stamped, and drawn readily In process annealing is often required to reduce hardness and increase ductility Weldability : The austenitic class of stainless steels is generally considered to be weldable Generally considered to have weldability equivalent to the most common alloys of the austenitic class 304 and 304L Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion

We are the noteworthy Manufacturer, Exporter and Supplier of durable SS304-SS304L Stainless Steel Products. Made from high-grade stainless steel, our products are appreciated for high strength, corrosion resistance, heat resistance, excellent finish, etc. We offer these Stainless Steel Products in different specifications to meet the exact application requirements of the buyers. Place bulk as well as urgent orders for Stainless Steel Products with us!   General Properties : Stainless Steel 304 / 304L is a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. SS304 / 304L has a carbon maximum is 0.030. It is the standard “18/8 stainless” that is commonly found in pans and cooking tools. SS304 / 304Lis the most versatile and widely used alloy in the stainless steel family. Ideal for a wide variety of home and commercial applications, SS304 / 304Lexhibits excellent corrosion resistance and has a high ease of fabrication, outstanding formability. The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes.   Specifications :  UNS S30400 / UNS S30403 Applications :SS304 / 304LStainless Steel is used in a wide variety of home and commercial applications, including : Food processing equipment, particularly in beer brewing, milk processing, and wine making Kitchen benches, sinks, troughs, equipment, and appliances Architectural trim and molding Automotive and aerospace structural use Construction material in large buildings Chemical containers, including for transport Heat exchangers Nuts, bolts, screws, and other fasteners in the marine environment Dyeing industry Woven or welded screens for mining, quarrying & water filtration   Standards : ASTM/ASME - UNS S30400 / S30403 EURONORM - 1.4301 / 1.4303 AFNOR - Z5 CN 18.09 / Z2 CN 18.10 DIN - X5 CrNi 18 10 / X2 CrNi 19 11 Corrosion Resistance : Resistance to moderately aggressive organic acids is a result of the 9 to 11% nickel that the 304 alloys contain. Resistance to corrosion in oxidizing environments is a result of the 18 to 19% chromium that the 304 alloys contain. The 304, 304L, and 304H may be considered to perform uniformly in most corrosive environments.  Heat Resistance : Continuous use of 304 in the 800-1580°F range is not recommended if subsequent aqueous corrosion resistance is important. Good oxidation resistance in intermittent service to 1600°F and in continuous service to 1690°F Properties of 304 AlloyWelding Characteristics :Excellent welding properties; post-weld annealing is not required when welding thin sections. Two important considerations in producing weld joints in the austenitic stainless steels are : Avoidance of cracking Preservation of corrosion resistance To forge, heat uniformity to 2100 / 2300 oF Do not forge below 1700 oF Forging can be air cooled without danger of cracking Processing – Cold Forming Its austenitic structure allows it to be deep-drawn without intermediate annealing, Making this the stainless steel grade of choice in the manufacturing of sinks, hollow-ware and saucepans. These grades work harden rapidly. To relieve stresses produced in severe forming or spinning, parts should be full annealed or stress relief annealed as soon as possible after forming. Machinability : The use of chip breakers is advised since the chips can be stringy. Stainless steel work harden rapidly, heavy positive feeds, sharp tooling, and a rigid set-up should be used. of cut below the work-hardened layer resulting from the previous passes.

Length : 6-8 meters

Shape : Round

Material : Stainless Steel

Surface Finishing : Polished

Material : Nickel Alloy

Shape : Round

We offer Metal Washers.

We offer metal screws of vairious sizes and grades for any kind of requirement kindly forward as the details.

We offer Metal Nuts.

We offer Metal Bolts.

Material : Incoloy

Thickness : 3-20 mm

We are reckoned as a high-flying Supplier offering quality and certified array of Duplex Welded Tube. For our purchasers in Mumbai(India) and other marketplaces, we supply a wide array of the product at the lowest prices.

We offer Duplex Welded Pipe offered by us, is made from high grade quality materials that ensure high durability. Further, the clients can avail duplex welded pipe at market leading price. grades : astm / asme sa 790 uns no s 31803, s 32205, s 32550, s 32750, s 32760

We offer superior quality duplex steel weld neck flange in various specifications in order to meet the client’s requisite. Duplex steel weld neck flange offered by us, is known for its high quality and durability among the buyers. grades : astm / asme sa 790 uns no s 31803, s 32205, s 32550, s 32750, s 32760

We are recognized as one of the dependable Duplex Steel Tubes Manufacturers and Suppliers in India. The use of optimum quality raw materials in the manufacturing of the Duplex Steel Tubes ensures high durability and resistivity to adverse conditions. Moreover, we also provide Duplex Steel Tubes that comply with the national as well as international quality norms. Range Duplex Seamless Tube Duplex Fabricated Tube Duplex Welded Tube Duplex CDW Tube Salient Features Excellent finish Durable Dimensional accuracy Corrosion resistance High strength Applications Industrial purpose Commercial purpose