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CHROME MOLY PIPE MANUFACTORY
CHROME MOLY PIPE MANUFACTORY
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CHROME MOLY PIPE MANUFACTORY Quality Info

Quality Control
Whilst providing a quality, trusted service, we also place a high premium on quality craftsmanship. Our steel products are long-lasting, and always meet our clients exact specifications.
The purpose of this section is to display the general parameters and guidelines for the quality control of products manufactured on a day to day basis at the manufacturing facilities of Sunny Steel.
It is the intent of Sunny Steel to furnish products of the highest quality, using the best materials and workmanship available. All personnel involved in the quality control process, whether they are the location manager, or their designee, will conduct themselves in a professional manner, with the best interests of Sunny Steel Enterprise, and the customer in mind.
Testing:
The production and inspection technological process of our company is arranged according to production standards, and we also establishes professional inspection organization which takes charge of the quality inspection of all process from raw material into the company to the final product store up. Inspections including destructive testing and non-destructive testing.
Our range of steel pipe testing equipment is among the most expansive in the seamless tube manufacturing industry. This equipment is essential for testing both the chemical and physical properties of each seamless pipe and the material used to make it. It also allows us to detect hidden steel tube defects, ensuring the pipe quality. Listed below is our primary range of testing equipment currently in operation.
1. Eddy current flaw detector
2. Ultrasonic flaw detector
3. Optical spectrum analyzer
4. Universal testing machine
5. Tensile strength tester, impact tester, hydrostatic test equipment, length measuring and weighing instruments.
Third-Party Testing Agency
Our Products have been established by the authoritative Third-Party-Test Agency such as SGS,Tuboscope,ACE and so on.
Our company establishes quality system according to ASTM A312/ ASTM A358 Class 1, 2, 3, 4, 5/ ASTM A790/ ASTM A928 Class 1, 2, 3, 4, 5/ API5LC/ ASTM B775/ EN10217-7 TC 1/2 standard, and make clear regulations in strictly control and good inspection the management responsibility, quality system, purchasing, control of process, inspection and testing.
Packing:
Our packing can meet any needs of the customers.
How to packing the seamless pipe:
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.
The Packing Works for Steel Flanges
Steel flanges must be packed with seaworthy packing method then delivery to customers, usually the packing way include wooden box, wooden pallet, iron & steel cage, iron & steel pallet etc.
The Rust Prevention for Steel Flanges
The normal rust prevention treatment for steel flanges include yellow (Golden) paint Coating, black paint coating or black phosphating treatment, varnish paint coating, varnish antirust oil coating, electro galvanizing coating (Cold), hot dip galvanizing coating etc.
The Packing Works for Steel Flanges
Steel flanges must be packed with seaworthy packing method then delivery to customers, usually the packing way include wooden box, wooden pallet, iron & steel cage, iron & steel pallet etc. Because of the normal wooden boxes or wooden pallets have to do fumigation treatment, we usually use plywood pallet or plywood case or box to pack steel flanges without fumigation treatment. Whatever plywood or iron & steel packing way, they must be seaworthy, strong, waterproof and easy for loading and unloading.
Shipping mark stick to outside of package.
How better packaging the abrasion resistant pipe
There are probably hundreds of different methods for packing a abrasion resistant pipe and Elbows, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.
Which ways can prevent damage to steel pipes during transport?
The compartment for the pipes should be clean inside. We have to ensure that there is no stone, brick and other hard objects to avoid damage for steel tubes.
For bundling steel pipes, we should put some sleepers in the bottom of compartment. For the flat-bed vehicles, we have to install protective rubber mats to protect steel tubes. When steel pipes are sent to the warehouse, we should put at least two sleepers or crossties vertical to pipes.
For long distance transportation of steel pipes, we should tie them tightly. If we use steel wires or hard objects to bundle steel pipes, the protective rubber is usually often placed in the steel strapping to prevent surface damage.
What is the material and technical process of seamless steel pipes?
In market there are various kinds of materials to manufacture seamless steel pipes. The seamless steel pipes made from 40Cr carbon steel are applied in manufacturing machinery force components.
There are two methods to process steel pipe: hot-rolled and cold rolled.
Generally, the seamless steel pipes are tested strength and flattening before leaving factory. In addition, seamless steel tubes are required to have high strength, high resistance to oxidation corrosion and good organizational stability. Therefore, the steel pipe manufacturing process is quite strict.
What are the key functions of seamless steel tubes?
Structural steel pipe is mainly used in general and mechanical structure.
Fluid pipe is mainly used in major projects and large scale equipment for delivering fluid like water and oil.
High pressure boiler steel seamless pipe is mainly applied in nuclear power plant boiler tanks that are resistant to high temperature and high pressure.
Marine seamless steel tube is mainly applied in ship boiler and superheater.
Petroleum seamless steel tubes are mainly used in boiler, heat exchanger for conveying fluid.

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