304 316L 310S 321 347 Stainless Steel Round Pipe / Welded Pipe / Seamless Steel Pipe Supplier

Products Specification

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.