Q:How does your factory do regarding quality control?

A:Quality is priority. we always attach great importance to quality controlling from the beginning to the end.Mill Test Certificate is              supplied with shipment. If needed, a Third Party Inspection is acceptable.

Q:May I have some samples before bulk order?

A:Yes, of course. samples are free but you have to pay the courier.

Q:Can we visit your Company?

A:Surely. Welcome to China and we will be honored to have a customer and friend.

Q:What is the payment terms?

A:T/T, L/C ,Western Union,etc.

Q:What's your delivery time?

A:For stocks, we can send the goods to loading port within 7 days after receiving your deposit. 

      For production period, it usually needs about 10days- 60days after receiving the deposit.

Q:Is it OK to mark my logo on your products?

A:Yes. OEM and ODM are available for us.

 ASTM A 182, A 240, A 276, 
A 789, A 790, A 815
UNS S31803, S32205
NACE MR0175
Forms of Duplex 2205 Available?
• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Welding Wire and Welding Electrode
2205 Duplex Overview
Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.
The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).
Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.
Corrosion Resistance
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.
The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.