High Quality Seamless Stainless Steel Pipes Made in China
Products Specification
| Products Name | stainless steel pipe |
| Grade | 201 304 309S 347 329 317L 316L 316Ti 321 310S 2205 2507 904L C276 C4.etc |
| Standard | ASTM A213, ASTM A312, ASTM A270, ASTM B622 |
| Diameter | DN10 - DN400 |
| Thickness | SCH10 - SCH160 or unstandard thickness as request |
| Length | 6m/pcs or fixed length as request |
| Shape | Round |
| Finishing | Pickling / Bright Polished |
| Company type | Factory |
Mainly Grade we can supply
Austenitic: 201 304/L/H/N,316/L/H/N/Ti,321/H,309/H,310S,347/H,317/L904L
Duplex steel: 31803,32205,32750,32760
Nickel Alloy:
Hastelloy: UNS N10001, N10665, N10675, N06455, N06022, N10276, N06200, N06035, N06030, N06635, N10003, N06002, R30188, N06230, R30556
Inconel: UNS N06600, N06601, N06617, N06625, N07718, N07750, N08800, N08810, N08811, N08825, N09925, N08926
Monel: UNS N04400, N05500
Precipitation-hardening Steels: 254SMO/S31254, 17-4PH, 17-7PH, 15-7PH
Quality Ensurance
1)Basic guarantee:Raw material guarantee,we use the Tsingshan Brand raw material,the quality is good,adding we use the spectrum direct-reading test,our professional workers &equipments,we could guarantee the tubes is right of the clients' needs.
2)Process control:follow the process chart adding our workers' care
3)Inspection& Test:Direct-reading Spectrum Instrument analytic for chemical composition, Yield Strength, Tensile Strength, Elongation, Hardness Test, Flattening Test, Flaring Test, Eddy Current Test, Ultrasonic Test, Hydrostatic Test, Corrosion Test, etc.
About Our Company
Our company is a focus on the production of sanitary stainless steel welded pipe and pipe fittings company, the company introduced a complete set of welded pipe assembly line, production technology and equipment. Including cage forming, multi - shade and welding, internal and external welding, internal and external mirror polishing. And strictly implement the Chinese GB, ASTM, JIS, DIN, Germany standard specifications production, product quality control using ISO9001 quality system certification management mode, and equipped with eddy current testing, water pressure test, process performance inspection, intergranular corrosion and metallographic inspection. Due to the high technical content of the product, it is compared with stainless steel seamless cold drawing, cold tie, product quality is stable and accurate, thick wall uniformity, high precision, no strain and pitting hole, internal and external surface quality is good, low hardness and direct production of elbow, tee and related accessories and other advantages. Products are widely used in food, medical machinery, petroleum, chemical industry, and so on.
Work Shop Show




Pictures of our products
To meet customer requirements, the quality inspector carries out final inspection and test of raw materials and finished pipe products in strict accordance with the inspection standard required by customers. According to stipulated standard requirements, analysis to chemical components of purchased materials and finished products is carried out to strictly control the materials, mechanical properties and chemical properties of finished products are tested, and eddy current test and ultrasonic nondestructive test are carried out, so as to guarantee product quality.
According to the technical conditions and requirements of product standards, the inspector will check the end appearance, bending degree, specified length,outside diameter, wall thickness dimension and internal and external surfaces of finished products one by one. After the product has been found to be up to standard through inspection and test, the quality certification of the product will be issued to ensure that satisfactory and reliable products are delivered to customers.
Shipping:
1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Goods delivered by 20" , 40" FCL/LCL by quantity or customer's request.
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time: 7-30days after conformed or according to quantity.

About Us
Zhongzheng Stainless Steel is one of the leading manufacturer and exporter for the Stainless Steel Seamless Pipes & Tubes from China. Based on our Stainless Steel seamless pipe factory, We supply the ONE-STOP service fittings,flanges, valves etc to our customers home and abroad.
We manufacture strictly as per the standard, We have mechanical properties test machine, supersonic testing machine, eddying current test machine, hydrostatic test machine, and spectrum analyzer for chemical composition.etc equipment to insure manufacturing processes and inspection and final quality guarantee.
We welcome customers themselves and/or their appointed third party inspection such as SGS,BV,MOODY, LIoyd's,TUV,DNV Etc well-known third party to conduct the inspection to our company and our products.
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