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:

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.

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.

Standard:

PIPES & TUBES:

Dimensions from carbon steel pipes are defined in the ASME B36.10 standard, dimensions for stainless steel pipe are defined in the ASME B36.19 standard. The material qualities for these pipes are defined in the ASTM standards.

ASTM A106 = This specification covers carbon steel pipe for high-temperature service.

ASTM A335 = This specification covers seamless ferritic alloy-steel pipe for high-temperature service. Grade: P5, P9, P11, P12, P22, P91, P92

ASTM A333 = This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Grade:Gr1, Gr3, Gr6

ASTM A312 = Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

ASTM A213= Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes, Grade:T5, T9, T11, T12, T22, T91

ASTM A519= Seamless Carbon and Alloy Steel for Mechanical Tubing Grade:4130, 4130X, 4140

FLANGES:

Dimensions from carbon steel and stainless steel flanges are defined in the ASME B16.5 standard. The material qualities for these flanges are defined in the ASTM standards.

ASTM A105 = This specification covers standards for forged carbon steel piping components, that is, flanges, fittings, Valves, and similar parts, for use in pressure systems at ambient and higher-temperature service conditions.

ASTM A182 = This specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and Valves and parts for high-temperature service.

ASTM A350 = This specification covers several grades of carbon and low alloy steel forged or ring-rolled flanges, forged fittings and Valves for low-temperature service.

FITTINGS

Dimensions, from wrought carbon and alloy steel fittings are defined in several ASME standards. The material qualities for these fittings are defined in the ASTM standards.

ASTM A234 = This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction.

ASTM A420 = Standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service.

ASTM A403 = Standard specification for wrought austenitic stainless steel piping fittings.