Carbon steel forgings, manufactured in accordance with ASTM/ASME A/SA105, are generally used for piping applications. These forged carbon steel piping components (including flanges, fittings, and valves, etc) are used for ambient- and higher-temperature service in pressure systems. The A105N, which is designated with a suffix "N", denotes that the A105 forging shall be furnished in normalized condition. If the forgings are used for piping applications of ASME BPVC or ASME B31, the material shall be its identical equivalent of SA-105 or SA-105N. In short, the heat treatment of normalization distinguishes A105N from A105, or SA-105N from SA-105.
Although normalization is a prevalent heat treatment procedure for ASTM A105 forgings, it is not a mandatory requirement except for the following piping components:

• For ASTM A105 flanges manufactured in accordance with ASME B16.5 or ASME B16.47, if the pressure rating is above Class 300, normalization is a must.

• For A105 flanges of special design where the design pressure at the design temperature exceeds the pressure-temperature ratings of Class 300, Group 1.1, or special design where the design pressure or design temperature are not known, normalization is also required.
• For piping components other than flanges that are made from A105 forgings, if the size is over NPS 4 and the pressure rating is above Class 300, normalization is required. If the working pressure at the operating temperature exceeds the tabulated values for special Class 300 of Group 1.1, ASTM A105N shall be applied.

ANSI B16.5, ASME B16.47 FLANGE

Size range: 1/2" to 80"  DN15 to DN2000

Design: welding neck, slip on, blind, socket welding, threaded, lap-joint

Pressure: 150#, 300#, 600#,900#,1500#, 2500#

Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS

Material: carbon steel A105, stainless steel  304/304L, 316/316L

Coating: black paint, yellow transparent paint, cold and hot dip galvanize

Package: seaworthy plywooden case, wooden pallet

Hebei Shengtian Pipe-Fittings Group Co., Ltd. was established in 1989. We are located in Mengcun County in Hebei Province, covering an area of 100,000 square meters, with a workshop of 25,000 square meters and registered capital of $7,500,000. Our company has a strong staff team. There are over 380 employees, including over 90 professionals and technicians.
Hebei Reaguan international co.,ltd. is our branch trading comany.

Shengtian pipe fittings group is capable of manufacturing various pipe fittings.Shengtian pipe fittings group's main products are elbows, tees, bends, reducers, caps. We have been in this line for about 20 years. Our products are exported to many countries and regions in Southeast Asia, the Middle East, Europe and America. Our products enjoy a good reputation in domestic and foreign markets. Every year, shengtian pipe fittings group receives hundreds of foreign visitors and innumerable domestic visitors.

Shengtian Pipe fittings Group have first-class inspection devices, perfect detecting means and well-trained specialists. And we stick to ISO9000 quality system and efficiently control procedure in production. We have confidence that we can supply the best quality products. We would like to take responsibility for any quality uncertainty. Even so, our price is competitive. Besides, Shengtian pipe fittings group can provide the best service to you.
We follows the principle of constantly providing high-quality products and service for each customer. Quality is life and service is basis. Our main purpose is to satisfy customers and help partners succeed.
In order to avoid the policy of the anti-dumping duties imposed on pipe fittings from the Europe, United States and other countries,We can re-export through other countries like Malaysia, etc, to circumvent the anti-dumping duties,which could make you to win more competitive price.
If you want the ASTM A234 WPB ANSI B16.9 seamless steel pipe fittings like  ASTM A234 WPB MS SCH40 BW ELBOW etc.
Pleaese send me your detailed inquiry by email.