China Made Precision Welded 201 202 304 304L 316 316L Stainless Steel Pipe Tube
Product Name |
Stainless Steel pipe |
Pipe Process Type |
Seamless: Hot rolled, cold drawn, cold rolled, etc. Welded: ERW, SAW, EFW, etc. |
Standard |
DIN, BS, EN, ISO, GB, AISI, SAE, GOST, IS, KS, ANSI, AFNOR, UNI, CSA, AS/NZS. |
Specification and Grades |
Stainless Steel: ASTM A312, ASTM A269, ASTM A358, ASTM A778, ASTM A790 304, 304L, 316, 316L, 310, 317L, 321, 347, 410, 904L |
Shape |
Round, Square, Rectangular, Oval, Hexagonal, etc. |
Size Range |
OD: 6mm-2500mm WT: 1mm-150mm Length: 6m 9m 12m OR others |
Application Industry |
Oil and Gas, Construction, Water Supply and Treatment, Automotive, Power Generation, etc. |
Pipe Ends |
Plain End (PE), Beveled End (BE), Threaded End (TE), Grooved, Bell End, Tapered, Expanded. |
Tolerance |
As standards' Requirements |
Certification |
GB/T19001-2016/ISO9001:2015 GB/T24001-2016/ISO14001:2015 GB/T 45001-2020/ISO 45001:2018 |
Processing Service |
Cutting, Bending, Threading, Welding, Grooving, Coating, Drilling, Galvanizing, Heat Treatment, Punching. |
MOQ |
1 Ton |
Packaging |
Bundled, Wooden Cases, Plastic Wrapping, Plastic Caps, Palletized, Shrink Wrapped, Plastic Bagged, Steel Crates, Loose, Boxed. |
Delivery Term |
EXW, FOB, FCA, etc. |
Delivery Time |
3-5 days for the regular models, and 7 to 10 working days for the special sizes and processing |
Payment Term |
T/T, L/C, D/P, etc. |
Customization |
Customization Available |

Austenitic Stainless Steel |
201, 301, 304, 305, 310, 314, 316, 321, 347, 370, etc |
Martensitic Stainless Steel |
410, 414, 416, 416, 420, 431, 440A, 440B, 440C, etc |
Duplex Stainless Steel |
S31803, S32101, S32205, S32304, S32750, etc |
Ferritic Stainless Steel |
429, 430, 433, 434, 435, 436, 439, etc |


Surface |
Characteristic |
Processing Technology |
N0.1 |
Original |
Pickled after hot rolling |
2D |
Blunt |
Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling |
2B |
Blurred |
Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + tempering rolling |
N0.3 |
Matte |
Polishing and tempering rolling with 100-120 mesh abrasive materials |
N0.4 |
Matte |
Polishing and tempering rolling with 150-180 mesh abrasive material |
NO.240 |
Matte |
Polishing and tempering rolling with 240 mesh abrasive materials |
NO.320 |
Matte |
Polishing and tempering rolling with 320 mesh abrasive materials |
NO.400 |
Matte |
Polishing and tempering rolling with 400 mesh abrasive materials |
HL |
Brushed |
Grind the surface of the steel belt with an appropriate grinding grain size to makeit show a certain longitudinal texture |
BA |
Bright |
The surface is annealed and shows high reflectivity |
6K |
Mirror |
Rough grinding and polishing |
8K |
Mirror |
Fine grinding and polishing |
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 Φ6 toΦ762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from Φ15 to Φ2200 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.
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