Super Duplex 2507 Stainless Steel, The Applications and Properties of Super Duplex 2507 Stainless St

Topics Covered

Background

Super duplex 2507 Stainless Steel

Chemical Composition of Super Duplex 2507 Stainless Steel

Machinability of Super Duplex 2507 Stainless Steel

Forming, Welding and Hot Working of Super Duplex 2507 Stainless Steel

Super Duplex Plate Sizes Available from Stirlings

Background

Stirlings Australia Global Metals Distributor, is located in Perth, Western Australia, and is an stockist distributor of stainless steel long, flat and fluid products and facilitator of value-added services. Established in 1986 as Stirling Metals, we're recognised as a leading stockist for quality stainless steel and copper nickel products. We're committed to providing innovative product and supply solutions to cater to each of our customer's stainless steel needs.

Stirlings Australia's success has been a result of years of building strong relationships and expert understanding within the industries we service. The main industries we supply to are; Architecture, Building & Construction, Food and Beverage, General Fabrication/Engineering, Marine and Shipbuilding, Resources and Construction and Wine.

As a continually improving and customer focused company Stirlings Australia is driven by a well-integrated system of people, technology, and innovative business approaches. We strive to make doing business with us easy for every customer, near or far, big or small, new or old. We believe in employing strategies such as enabling, making and delivering on promises. Most of all, we believe in our vision, aiming to be a world leader in providing our customers with excellent value, top quality products & outstanding service.

Stirlings Australia also has a dedicated team of project consultants, specialising in project supply management. With expertise in customising supply requirements to meet specific project needs and deadlines, we also pride ourselves in delivering felxible, reliable and efficient service with cost-effectiveness in mind. Supported by an established network of international partners and logistics companies, we act as your company's stainless steel supply division, working with you to ensure the success of your project.

Super Duplex 2507 Stainless Steel

SAF 2507/UNS S32750 is a super duplex stainless steel designed for specific applications requiring high strength and excellent corrosion resistance especially in a variety of components in desalination plants, heat exchanger tubes in sea water cooling plants, drive shafts for ocean going vessels, containers for pulp & paper industry, tube & pipe systems at petrochemical refineries and more.

Chemical Composition of Super Duplex 2507 Stainless Steel

The chemical composition of super duplex 2507 stainless steel are summarised in table 1.

Table 1. Chemical composition of super duplex 2507

C

Cr

Ni

Mo

N

Others

0.020

25

7

4.0

.27

S=0.001

PREN = [ Cr% ] + 3.3 [ Mo% ] + 16 [ N% ] >40

Alloy SAF 2507 is not recommended for applications which require long exposures to 570Fand above, because of the risk of toughness reduction.

Machinability of Super Duplex 2507 Stainless Steel

Low speeds and constant feeds will minimize this alloy's tendency to work harden. Tougher than 304 and 316 stainless with a long stringy chip, the use of chip breakers is recommended.

Forming, Welding and Hot Working of Super Duplex 2507 Stainless Steel

Due its inherently higher yield strength, initial forming pressures must be higher than those required for standard 300 series stainless steel. Low ductility will make forming operations difficult. All common methods including GTAW, SAW and GMAW can be successfully employed for welding. Hot Working is the recommended method of forming. It may commence after heating to 1750-2000 F, followed by rapid cooling after working. For maximum properties material should be fully annealed after working.

Super Duplex Plate Sizes Available from Stirlings

Table 2. Super Duplex 2507 plate sizes

Thickness

Width

Length

Weight
kg/m2

Kg Per
Plate

3.0

1500

6000

24.60

221.40

5.0

1500

6000

41.00

369.00

6.0

1500

6000

49.20

442.80

8.0

2000

6000

65.60

787.20

10.0

2000

6000

82.00

984.00

12.0

2000

6000

98.40

1180.80

16.0

2000

6000

131.20

1574.40

20.0

2000

6000

164.00

1968.00

25.0

2000

6000

205.00

2460.00

32.0

2000

4000

264.40

2115.20

Source: Stirlings Australia

For more information on this source please visit Stirlings Australia

Date Added: Jul 8, 2008 | Updated: Jun 11, 2013
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