ASTM A928 Uns S31803 Welded Super Duplex Stainless Steel Pipe

 Our company mainly work on stainless steel pipe and tube, plate and sheet, rod and bar,
Material covered with Austenitic stainless steel, Ferritic steel, Nickel, Nickel based alloy, Inconel alloy, Incoloy, Hastelloy, high temperature resist alloy ,tubo de acero sin costura ,бесшовная стальная труба
Type of pipe and tube both in seamless and weld, according to final surface finished they can be classify into A&P(annealing and pickling) finished, BA(bright annealing) finished, EP(electropolishing electrolytic polishing),MP(mechanical polishing)
High-grade roughness for EP electropolishing tube, within 0.4um (micron) for outside/outer surface, within 0.2um (micron) for inside/inner surface
Detail of covered material/Grade
300 series austenitic: 304 304/304L 304H 30432(super 304H)321 321H 316 316L 316/316L 316H 317 317L 317LN 347 347H 310S 310H 310 314 S30815(253MA)
Duplex Grade and super duplex grade: 31803 UNS S31803 32205 2205 UNS S32205 32304 UNS S32304
Super duplex: 2507 32750 UNS S32750 32760 UNS S32760
Super austenitic: AL6XN N08367 N08904 904 904L S31254(254SMO)
Ferritic/Ferrite and Martensitic/Martensite 400 series: 405 410 430 409 439 429 430Ti
Nickel and Nickel alloy series:
Inconel: Inconel 600 N06600 Inconel 601 N06601 Inconel 625 N06625 Inconel 690 N06690
Hastelloy : Hastelloy B3 N10675 Hastelloy C 276 N10276 Hastelloy C 22 N06022 Hastelloy G35 N06035 Hastelloy G30 N06030
Monel: Monel 400 N04400
Incoloy: Incoloy800 N08800 800 Incoloy800H 800H N08811 Incoloy825 825 N08825 N08810 8810 Incoloy718 N07718 GH4169
Aolloy: Alloy 20 N08020 incoloy 20 Alloy 28 N08028 inc oloy 28 Alloy 31 N08031 incoloy 31
Nickel: N02200 Ni200  N02201 Ni 201
seamless steel
pipesteel tube
stainless pipe
round steel
Stainless Steel
Steel Pipe
Steel Coil 
Stainless Steel Pipe
Stainless Steel Plate

product purpose:
Stainless steel pipe is a kind of hollow long round steel and economical cross-section steel, which is widely used in life decoration and industry ,building material,food processing, storage and transportation,Plate heat exchangers, bellows, household products , auto parts , medical appliances, building materials, chemicals, food industry, agriculture, ship parts, industrial transmission pipelines and mechanical structural parts such as petroleum, chemical, medical, food, light industry, mechanical instruments,manufacture mechanical parts, engineering structures etc.
Duplex steel and super duplex steel is the most widely used chromium-nickel stainless steel.It has good corrosion resistance, heat resistance, low temperature strength and mechanical properties;Stainless steel 304 is suitable for indoor and outdoor decoration, building components, stair support Hands and railings, chemical equipment, oil pipelines and storage tanks, food processing equipment, kitchenware and medical instruments, automotive parts, aircraft structures and aerospace components, electronic equipment, power engineering, textiles,Industrial and Marine engineering

Zhongzheng Stainless Steel Co., Ltd. was established in 2018 with aregistered capital of 20 million yuan. lt is a manufacturing company thatintegrates the production of special materials, manufacturing andprocessing, sales, and technology development. The company covers anarea of 2,000 square meters and has 200 employees. it has built worldclass stainless steel seamless pipe (hot piercing, cold drawing, cold rollingproduction lines, precision steel pipe production lines, and large, mediumand small-sized welded pipe production lines. The company has beencommitted to providing high performance, high precision, hightemperature-resistant, high pressure-resistant, and corrosion-resistantsolutions and technical services for industrial equipment pipeline systems.The company specializes in producing a series of steel pipes, pipe fittingsflanges, etc., such as high-temperature (nickel-based) alloys, austeniticduplex steel, urea grade stainless steel, super stainless steel, etc. Thecompany is equipped with an annual production capacity of 5,000 tons ofstainless steel seamless pipe production line, 7,000 tons of welded pipeproduction line, and 500 tons of pipe fittings production line, etc. lt canoroduce stainless steel seamless pipes with diameters ranging from ?Φ?6 to?Φ?762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from ?Φ?15 to ?Φ?2200 and wallthicknesses ranging from 0.5 to 80 mm, pipe fittings, and various stainlesssteel ingots, round steel, rough pipes, etc., according to customerrequirements and in accordance with standards such as GB, ASTM, etc.

After-sale capability:
Flexible payment via T/T, L/C, etc
Fast delivery and standard export packaging
Familiar with after-sales service technology, able to provide customers with quality after-sales service
Our company will be for each shipment will have the strict quality control, at the same time we also apply for the international reputation of the third party inspection and quarantine company quality control, such as SGS, BV, ITS, TUV, Intertek, CCIC, DEKRA, UL, LRQA and inspection report issued by a third party