Payment & Shipping Terms:
316 stainless steel pipe,
2205 duplex stainless steel pipe
A790 Duplex Stainless Steel Piping , Super Duplex Stainless Steel Tubing S32750
The main grades: UNS S31803,S32205,S32750
ASME SA789/SA789M ( ASTMA789/A789M )
General use standard specification for seamless and Welded Ferritic / austenitic stainless steel pipe
ASME SA790/SA790M ( ASTMA790/A790M )
Seamless and Welded Ferritic / austenitic stainless steel pipe
1.Outer Diameter: 1/4" - 16"
2.Wall thickness:1 mm-50mm
3.Length: 6 metre or as per customer request
Our producing line:
We are a manufacturer and exporter of cold rolled and cold drawn stainless steel pipes . We employ over 80 workers and certified engineers and technicians.
Packaging and Transport:
We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.
Identification labels are tagged according to standard specification or customer's instructions.
Special packing is available as per customer's requirement.We cooperate with professional shipping company,To ensure the goods arrive at the port of destination.
We can produce other standard as the customers' requirement !
Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel.
Strength: Duplex stainless steels are about twice as strong as regular austenitic or ferritic stainless steels.
Toughness and ductility: Duplex stainless steels have significantly better toughness and ductility than ferritic grades; however, they do not reach the excellent values of austenitic grades.
Corrosion resistance: As with all stainless steels, corrosion resistance depends mostly on the composition of the stainless steel. For chloride pitting and crevice corrosion resistance, their chromium, molybdenum and nitrogen content are most important. Duplex stainless steel grades have a range of corrosion resistance, similar to the range for austenitic stainless steels
Stress corrosion cracking resistance: Duplex stainless steels show very good stress corrosion cracking (SCC) resistance, a property they have “inherited” from the ferritic side. SCC can be a problem under certain circumstances (chlorides, humidity, elevated temperature) for standard austenitics such as Types 304 and 316.
Cost: Duplex stainless steels have lower nickel and molybdenum contents than their austenitic counterparts of similar corrosion resistance. Due to the lower alloying content, duplex stainless steels can be lower in cost, especially in times of high alloy surcharges. Additionally, it may often be possible to reduce the section thickness of duplex stainless steel, due to its increased yield strength compared to austenitic stainless steel. The combination can lead to significant cost and weight savings compared to a solution in austenitic stainless steels.