SS304 Stainless Steel Pipe Manufacturer

Duplex Steel Pipe & Tube Fittings

TP316, TP316L, TP316Ti, TP317L, TP347L, TP310S, TP321H | ASTM ASTM A312, ASTM A269, ASTM A213, ASTM A249, ASTM A358 | ASME SA213 | Stainless Steel Seamless Pipe |Stainless Steel Welded Pipe | Stainless Steel ERW Tubing| Stainless Steel Coiled Tubing | Stainless Steel Capilary Tubes Suppliers Manufacturers     

Duplex Steel Pipes & Tubes

Grades: Duplex Steel UNS 31803 Pipe Fittings  |  UNS 32205 Flanges  |  UNS 31803 Flanges  |  UNS 32205 Pipe Fittings  |  ASTM A240, A276, A789, A790, A182  |  ASME SA240, SA276, SA789, SA790, SA182 | 

Example Industrial Uses:
  • Chemical and fuel tankers
  • Chemical and petrochemical plants
  • Food processing and pharmaceutical industries where clean environments are required
  • Construction, modern architecture

Material Grades :

Stainless Steel Seamless Pipe
ASTM A312 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 410, 904L
Stainless Steel Welded Pipe
ASTM A312 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L
Stainless Steel Seamless Tube
ASTM A213 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L
Stainless Steel Seamless Tube
ASTM A269 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L
Stainless Steel Welded Tube
ASTM A249 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L
Stainless Steel EFW Tube
ASTM A358 CL. 1 to 5 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H,
Stainless Steel Fabricated Pipe Welded From Plates
Fabricate form S.S. Plates as per ASTM A240 TP304/L/H, 310/H, 316/L/H/Ti,   321/H, 347/H, 904L with or without 10% Radiographic Welding.

Duplex Steel Properties

High oxidation-resistance in air at ambient temperature is normally achieved with additions of a minimum of 13% (by weight) chromium, and up to 26% is used for harsh environments.[10] The chromium forms a passivation layer of chromium(III) oxide (Cr2O3) when exposed to oxygen. The layer is too thin to be visible, and the metal remains lustrous. The layer is impervious to water and air, protecting the metal beneath. Also, this layer quickly reforms when the surface is scratched. This phenomenon is called passivation and is seen in other metals, such as aluminium and titanium. Corrosion-resistance can be adversely affected if the component is used in a non-oxygenated environment, a typical example being underwater keel bolts buried in timber.

When stainless steel parts such as nuts and bolts are forced together, the oxide layer can be scraped off, causing the parts to weld together. When disassembled, the welded material may be torn and pitted, an effect known as galling. This destructive galling can be best avoided by the use of dissimilar materials for the parts forced together, for example bronze and stainless steel, or even different types of stainless steels (martensitic against austenitic), when metal-to-metal wear is a concern. Nitronic alloys reduce the tendency to gall through selective alloying with manganese and nitrogen. In addition, threaded joints may be lubricated to prevent galling.


Duplex Steel Applications

Stainless steel’s resistance to corrosion and staining, low maintenance, relatively low cost, and familiar lustre make it an ideal material for many applications. There are over 150 grades of stainless steel, of which fifteen are most commonly used. The alloy is milled into coils, sheets, plates, bars, wire, and tubing to be used in cookware, cutlery, hardware, surgical instruments, major appliances, industrial equipment (for example, in sugar refineries) and as an automotive and aerospace structural alloy and construction material in large buildings. Storage tanks and tankers used to transport orange juice and other food are often made of stainless steel, due to its corrosion resistance and antibacterial properties. This also influences its use in commercial kitchens and food processing plants, as it can be steam-cleaned and sterilized and does not need paint or other surface finishes.

Stainless steel is used for jewellery and watches with 316L being the type commonly used for such applications. It can be re-finished by any jeweler and will not oxidize or turn black.

Some firearms incorporate stainless steel components as an alternative to blued or parkerized steel. Some handgun models, such as the Smith & Wesson Model 60 and the Colt M1911 pistol, can be made entirely from stainless steel. This gives a high-luster finish similar in appearance to nickel plating. Unlike plating, the finish is not subject to flaking, peeling, wear-off due to rubbing (as when repeatedly removed from a holster), or rust when scratched.

 

Comparison Of Standardized Stainless Steel & Duplex Steels:

Stainless Steel Pipes Tubes
Stainless Steel SS Seamless Pipe
Stainless Steel SS Seamless Tube
Stainless Steel SS Welded Pipe
Stainless Steel SS Saw Pipe Tube
Stainless Steel SS Round Pipe Tube
Stainless Steel SS Dom Pipe Tube
Stainless Steel SS Erw Pipe Tube
Stainless Steel SS Line Pipe Tube
Stainless Steel SS Hollow Pipe Tube

ASTM / ASME SA 312 GR. TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.

ASTM / ASME SA 358 CL 1 & CL 3 GR . 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 321, 321H, 47.

Duplex Steel Pipes And Tubes
Duplex Steel Pipes Tubes
Duplex Steel Seamless Pipe
Duplex Steel Seamless Tube
Duplex Steel Welded Pipe Tube
Duplex Steel Saw Pipe Tube
Duplex Steel Round Pipe Tube
Duplex Steel Dom Pipe Tube
Duplex Steel Erw Pipe Tube
Duplex Steel Line Pipe Tube
Duplex Steel Hollow Pipe Tube

ASTM / ASME SA 790 UNS NO S 31803, S 32205, S 32550, S 32750, S 32760.

 

Available Duplex & Super Duplex steel Products Stock :

Pipe & Tube Type

PIPE SHAPES:
  • Round Pipe
  • Rectangular Pipe
  • Square Pipe

OUR MAIN MARKETS FOR SELLING ARE:

Saudi Arabia-Riyadh, Jeddah, Dammam, Mecca, Medina, Taif, Buraydah, Qatif, Abha, Tabouk, Ha'il, Jordan-Amman, Zarqa, Irbid, Syria-Damascus, Aleppo, Homs, Latakia, Hama, Hafar Al-Batin, Al Madinah, Jubail, Hofuf, Al-Kharj, Khamis Mushait, Najran, Buraidah, Al-Qassim, Yanbu, Khobar, Al Qunfudhah, Egypt-Cairo, Alexandria, Shubra al Khaymah, Port Said, Damietta, Kafr Dawar, Ismailia, Shibin El Kom, Asyut, Suez, El-Mahalla El-Kubra, El Mansurah, Tanta, Aswan, Sohag, Sudan-Omdurman, Bahri, Port Sudan, Kassala, Al-Ubayyid, United Arab Emirates-Abu Dhabi, Dubai, Sharjah, Kuwait, Kuwait City, Iraq-Baghdad, Mosul, Basra, Arbil, Hilla, Sulaymaniyah, Kirkuk, Najaf, Karbala, Al Kut, Ramadi, Fallujah, Algeria-Algiers, Oran, Constantine, Annaba, Batna, Blida, Sétif, Libya-Tripoli, Benghazi, Misrata, Derna, Morocco-Casablanca, Rabat, Marrakech, Fez, Safi, Agadir, Tangier, Meknes, Oujda, Lebanon-Beirut, Tripoli, Sidon, Jounieh, Oman-Muscat, Matrah, Qatar-Doha.