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Fax: 0086-317-6322016

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Chongsheng LogoHebei Chongsheng Steel Pipe Co., Ltd. Hebei Chongsheng(CS) Steel Pipe Co., Ltd. is a leading manufacturers of various steel tubes, including seamless steel pipes:(structural seamless steel pipe, seamless steel water pipe, gas pipe, high pressure seamless steel pipe, steel oilfield casing and tubing,seamless steel tube for mechanical engineering, corrosion resistant steel pipe ),OCTG pipe, welded steel pipe and pipe accessories,

ChongSheng(CS)Pipe is equipped with 3 hot rolled seamless steel pipe production lines and 2 hot expanding production lines. We are able to annually produce 692,800 tons of Φ70mm-630mm liquid transfer pipe.

The products are produced according to international advanced standard such as API, ASTM(ASME), DIN, JIS and GB etc.the size covers from 1/2'' to 120'', wall-thickness from Sch20 to Sch160, XXS and the length up to 40'.

We have gained IS09001:2008 Quality Management System certification, API 5CT and API 5L certification, Construction Products Directive (Council Directive 89/106/EEC) certification.

Our products are extensively applied in petroleum, chemical, power, boiler, and machinery industries abiding to the customer's requirement and specifications.

Since we attach much importance to quality production, operation, inspection, prompt delivery, competitive prices, transparency & an excellent quality system in place, as our motto: " make our client successful", we have established good relationships with our partners and received a number of awards & appreciation. We are also ISO 9000:2001 Certified for our quality output.

Quality Assurance

Quality Assurance at Chongsheng starts with understanding the Customers Requirement and continues till the customer is completely satisfied with the delivery of products and services. Quality Control procedures are well defined and thoroughly implemented.

Incoming Inspection : Incoming Raw Materials are the foundation for the final product. We make sure that we start with the best raw materials. Our suppliers are well-informed with our quality requirements.

Raw Materials are inspected for:

• Chemical & Mechanical Properties
• Surface Quality

In-Process Inspection : In-Process Quality Control Procedures are defined to the minutest details. These procedures enable operators,supervisors and quality control inspectors to produce the best quality products.

In-process Materials are inspected for :

• Dimensional properties such as tolerance, lobing, ut-of-roundness, length, straightness
• Inprocess Mechanical Properties such as Tensile, Elongation, Yield, Reduction of Area, Hardness at Core.
• Surface Finish

Finished Goods Inspection : The quality assurance team in the finished goods department - we call them “Internal Customer ”. They inspect materials from the customer ’s perspective. Our products comply with relative international standards such as API, ASTM(ASME), DIN, JIS, GB and others.

Finished Goods are inspected for :

• Surface Finish
• Final Mechanical Properties
• Mercury Contamination,Macro and Micro Properties,Inter Granular and Corrosion Properties
• Packing,Color Coding,Marking

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