Welded Making Duplex Stainless Steel Pipe
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Welded Making Duplex Stainless Steel Pipe

Duplex stainless steel are extremely corrosion resistant,work hardenable alloys.Their microstructures consist of a mixture of austenite and ferrite phases.Therefore,duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels.
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Product Introduction

Product Introduction

 

Welded Making Duplex Stainless Steel Pipe is a duplex structure composed of approximately 50% austenite and 50% ferrite, combining the excellent properties of both microstructures and overcoming the performance shortcomings of traditional stainless steel. It can withstand extreme environments such as seawater, acid and alkali media, and high salt spray. Simultaneously, it exhibits excellent weldability, low sensitivity to cold and hot cracking, and maintains stable duplex proportions and mechanical properties after welding, meeting the long-term service requirements of industrial pipelines.

 

Welded Making Duplex Stainless Steel PipeWelded Making Duplex Stainless Steel Pipe

 

Product Parameters

 

Property

2205

UR52N+

Density (g.cm3)

7.805

7.810

Modulus of Elasticity (GPa)

200

205

Electrical Resistivity (Ω.m)

0.85 x 10-6

0.85 x 10-6

Thermal Conductivity (W/m.K)

19 at 100 °C

17 at 100 °C

Thermal Expansion (m/m.K)

13.7 x 10-6 to 100 °C

13.5 x 10-6 to 200 °C

 

UNS № Grade EN № Hot forming temperature range Minimum soaking temperature
S32304 1.4362 1,150 to 950 °C (2,100 to 1,740 °F) 980 °C (1,800 °F)
S32205 1.4462 1,230 to 950 °C (2,250 to 1,740 °F) 1,040 °C (1,900 °F)
S32750 1.4410 1,235 to 1,025 °C (2,255 to 1,877 °F) 1,050 °C (1,920 °F)
S32520 1.4507 1,230 to 1,000 °C (2,250 to 1,830 °F) 1,080 °C (1,980 °F)
S32760 1.4501 1,230 to 1,000 °C (2,250 to 1,830 °F) 1,100 °C (2,010 °F)

 

Application Scenarios

 

Oil & Gas and Marine Engineering: Welded-Made Duplex Stainless Steel Pipe can withstand the corrosion of seawater, oil and gas mixtures, hydrogen sulfide, and other media, ensuring long-term stable operation of equipment. Super duplex 2507 welded pipe is also used in high-end applications such as submarine umbilical cables and LNG transportation pipelines.

Chemical and Petrochemical Industries: The chemical industry is a traditional application scenario for duplex stainless steel welded pipes, used in methanol synthesis reactors, acid and alkali transportation pipelines, urea production equipment, etc. It is widely used in small and medium-sized methanol plants. In integrated refining and chemical projects, it can withstand high temperature, high pressure, and highly corrosive conditions, reducing equipment maintenance frequency and downtime losses.

Water treatment and seawater desalination: Seawater desalination, wastewater treatment, desulfurization, and denitrification require pipes with extremely high resistance to chloride ion corrosion. Duplex stainless steel welded pipes account for approximately 18% of the demand in these fields. In evaporators, brine transport pipelines, and reverse osmosis membrane housings of seawater desalination plants, it effectively resists seawater erosion, extending equipment lifespan. In aeration devices of municipal wastewater treatment plants and industrial wastewater treatment pipelines, it can withstand high concentrations of acid, alkali, and impurity corrosion, reducing operation and maintenance costs.

 

Certificate

 

Welded Making Duplex Stainless Steel Pipe

 

Exhibition

 

Welded Making Duplex Stainless Steel Pipe

 

Company Introduction

 

Henan Tieyao Trading Co., Ltd. in Anyang, Henan Province, with our own factory, we maintain a healthy inventory of over 1,700 conventional vacuum products, ensuring prompt shipment for standard purchases. Our dedicated R&D team specializes in new designs and special requirements. We accept OEM/ODM orders and have established strong relationships with clients from East Asia, South Asia, North America, Europe, and Oceania. Nearly 99% of our international customers order again, and another 96% are repeat customers. To foster long-term relationships, we offer preferential discounts to returning customers and repeat orders. We understand that in an ever-changing market environment, competitive pricing, high-quality products, and attentive service are the keys to our success. We are committed to improving our business with reliability, professionalism, and compassion, all with a progressive perspective.

 

Welded Making Duplex Stainless Steel Pipe

 

Our factory

 

Welded Making Duplex Stainless Steel Pipe

 

FAQ

 

Q1: What are the details of your after sales service?

A1: We provide the necessary technical support to all of our customers, such as material performance and heat treatment data advice.

Q2: How could I get a sample?

A2: Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.

Q3:It's my first time to import steel products, can you help me with it?

A3:Sure,we have agent to arrange the shipment, we will do it together with you.

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