TP310HCbN (S31042) heat-resistant steel pipe is based on 25-20 austenitic steel. By adding 0.25% N and 0.4% Nb, fine intermetallic compounds NbCrN and Nb carbon, nitrogen compounds, and M23C6 hard alloy dispersed precipitation are used to enhance 25-20 steel. The steel used has good structural stability, steam oxidation resistance, high-temperature corrosion resistance, and good weldability. In 2000, the steel was listed in the CODE CASE by the American ASME with the number 2115-1. In 2008, China included 07Cr25Ni21NbN (TP310HCbN (S31042)) in the GB5310-2008 seamless steel pipe standard for high-pressure boilers.
1) Based on the characteristics of the environment used in ultra supercritical power plant boilers, Taiyuan Iron and Steel Group Co., Ltd. has developed TP310HCbN heat-resistant seamless steel pipe, stainless steel seamless steel pipe, through reasonable composition design, selection and optimization of smelting process, mold injection process, rolling process, and heat treatment process. Its surface quality, geometric size, chemical composition, microstructure, grain size, inclusions, room temperature mechanical properties, high-temperature performance, corrosion resistance, as well as flattening and expanding All indicators such as welding meet the requirements of GB/T5310, ASMESA-213M, and relevant procurement specifications for boiler factories. The physical quality meets the level of similar foreign products and has the conditions for mass production.
2) The TP310HCbN heat-resistant seamless steel pipe developed by Taiyuan Iron and Steel meets the requirements of Chinese boiler regulations and relevant technical standards, and can be used for components such as superheaters and reheaters in ultra (ultra) critical boilers, as well as pressure components under similar working conditions.
Company Profile
Wuxi Dingyu Xinda Special Steel Co., Ltd. has world-class metallurgical equipment, mature and stable technology, and safe and reliable process flow. The smelting of special functional superalloys adopts the VIM+VAR dual vacuum dual process and the VIM+PESR+VAR triple process for smelting production; Vacuum induction melting (VIM), vacuum consumable (VAR), atmosphere protected electroslag remelting (PESR) and conventional process IF+AOD+LF+VOD metallurgical equipment. Processing equipment such as heat treatment furnaces, peeling machines, rolling straightening machines, cold drawing machines, and coreless grinders; German Spike direct reading spectrometer, hardness machine, tensile machine, impact testing machine, automatic and manual ultrasonic non-destructive testing machine, eddy current non-destructive testing machine, corrosion testing machine,salt spray testing machine, German Leica metallographic microscope and other complete testing equipment. Since 2005, Dingyu.
F A Q
1. How can I know whether you are a reliable company?
We have been engaged in the steel industry for nearly 7 years and have a high reputation in China, We welcome you to inspect our company at any time.
2. Can you guarantee your products?
Yes, we guarantee your 100% satisfaction on all our products. Please feel free to feedback us immediately.
3. Do you provide samples?
Yes, we can provide most of the product samples. We will charge a little sample fee. But we will return the charge if you place an order. if you asked to use DHL, Blue Dart Express, FedEx, etc. to send samples, you can inform us in advance to prepare.
4. Can I visit your company?
Of course, If you want to order our products and visit our company, please contact us to make an appointment.
5. Can you make boxes according to my request ?
Yes,customization service is available,OEM business is appreciated.
When you place the orders,we arrange the production asap,When finish the orders, we will inform you and also we arrange the shipping in the same time.
6. How much is the freight?
It depends on the number and transport methods. When asked about the freight, we want you to let us know your detailed information , such as the product name and quantity and your favorite mode of transport, as well as your designated port or airport. We thank you for providing us the information to estimate the cost.
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