China 2205 Duplex Stainless Steel Tubing

The standard of 2205 grade of steel has been refined over the years creating a versatile and strong product. The China 2205 Duplex Stainless Steel Tubing is one of the most widely used ferritic and austenitic duplex stainless steel pipes. China 2205 Duplex Stainless Steel Tubing combination of ferrite and austenite is the most beneficial properties, has a very good resistance to chloride stress corrosion cracking. It has an excellent corrosion resistance (including in seawater), it is weldable by all standard methods, and has high heat resistance.


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China 2205 Duplex Stainless Steel Tubing is a stainless steel tube. It belongs to a family of stainless steels called the duplex steels. There are different groups of this material. Alloy 2205 is ferritic-austenitic stainless steel used in situations that demand good corrosion resistance and strength. It is also referred to as Grade 2205 Duplex.

The 2205 duplex stainless steel pipe of this family could be formed either by the cold drawing of by hot rolling and welding. The China 2205 Duplex Stainless Steel Tubing is cold drawn and it has less absolute roughness. The seamless ones are less strong than the duplex SS 2205 welded tubing but are highly precise in dimension. The precision in dimension is useful in highly sensitive applications that require precision in measurements and calculations.

The combination of chromium, molybdenum, and nitrogen conveys the good resistance of China 2205 Duplex Stainless Steel Tubing 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 China 2205 Duplex Stainless Steel Tubing provide corrosion resistance superior to common stainless steel, such as 316L and 317L in most environments. Gaolin has been actively involved in ensuring the best quality of the same to our clients.

Features of China 2205 Duplex Stainless Steel Tubing:

● High resistance to stress corrosion cracking, fatigue, and erosion

● Higher heat conductivity and lower thermal expansion compared to austenitic steels

● Outstanding and uniform resistance to pitting and crevice corrosion

● Good sulfide stress corrosion cracking resistance

● Useful up to 600°F

1) Commodity: Seamless austenitic stainless steel pipe/tube, Seamless duplex stainless steel pipe/tube
2) Process method: Cold drawn/cold rolled
3) Surface finish: Anneal/pickling/manual polished/ mechanical polished
4) Material: TP304/304L/H/LN, TP309/310/S, TP316/316L, TP317/317L, TP321/321H, TP347/347H, TP316Ti, TP904L, S31803, S32750, SAF2205, SAF2507, SAF2520, 1.4301, 1.4306, 1.4401, 1.4404, 1.4833, 1.4845, 1.4571, 1.4438, 1.4541, 1.4550, 1.4462 and so on.
5) Standards: ASTM(ASME) (SA)A312/213/269/789/790/M DIN17456/17458 EN10216-5 JIS G3463 and so on
6) Size:
    A) NPS: 1/8″ to 10″
    B) Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S,
            Acc. To ANSI B36.19/36.10
    C) O. D.: 6mm to 219mm
    D) W. T.: 0.5mm to 25mm
7) Length: Max. 20 meters
8) Delivery conditions: Annealled, Picklinged and Polished
9) Inspection: ISO 9001-2000, PED 97/23/EC, TUV
10) Applications: For fluid and gas transport, structure and Machining
11) packing: Seaworthy wooden cases/plywood box/steel framed cases/ simple packaging

Gaolin is the professional duplex stainless steel pipe supplier and super duplex stainless steel pipe manufacturer in China, providing high-quality duplex stainless steel pipe and super duplex tubing.

Additional information

USA grades:

S32205, 2205

European Union grades:

X2CrNiMoN22-5-3, 1.4462

Process method:

cold drawn / cold rolled

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