Frequently Asked Questions Easy to enjoy our service by scan the follow Frequently Asked Questions Q: What kind of material does HONGCHENG supply? HONGCHENG generally specializes in alloy steel and specialty alloys. Some of these specialty alloys include Alloy 20, Duplex Alloys, Nickel Alloys such as various grades of Hastelloy (C276, C22), Aluminum, Chrome Moly ASTM A/ASME SA 335 P1, P2, P5, P9, P11, P12,P22, P23, P91, and P92. we also offer bending,CNC machining, coating service. Q. What the define of pipe fittings? Pipe fitting is the occupation of installing or repairing piping or tubing systems that convey liquid, gas, and occasionally solid materials. This work involves selecting and preparing pipe or tubing, joining it together by various means, and the location and repair of leaks. Pipe fitting work is done in many different trades: Plumbing, HVAC, manufacturing, fire prevention, and many others. Pipe fitters (sometimes called simply “fitters”) are represented in the USA by the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada. Fitters work with a variety of pipe and tubing materials including several types of plastic, copper, steel, iron, aluminium, clay, and lead. Q. What should I consider for buying pipe fittings? A. Material, Size, Temperature and Pressure Ratings, Durability, Standards,surface coating etc. Q. What are threaded fittings? A. Thread fitting is the fitting with thread concetions,the regular screw standards are NPT and BSP.NPT is a U.S. standard for tapered threads used to join pipes and fitting and BSP is a family of standard screw thread types that has been adopted internationally for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread. Q. The define of flange? A. A flange is usually in the shape of a plate or ring which forms a rim at the end of a pipe when fastened to the pipe our factory can produce single forge base over 8000kg. Q.Do you provide Material Test Reports (MTR’s) ? Relevant documents according to inspection test plan will be provide along with goods. Q.What is a standard used in pipe fittings? A. Standards are certain authentication given in reference to manufacture and installation of the product . Some common standards are BSP, NPT, ANSI, ASME etc Q. My questions is not answered in this FAQs section, what do I do now? A: Simply call us or email us at info@alloysteelfitting.com and we will do our best to effectively answer all of your product or order questions. .