Grade: Duplex 2507, ASTM A312
Surface Finish: 2B, Polished, No.4, No.1, No.8 Mirror, AP (Annealed & Pickled), BA (Bright & Annealed), MF,
Annealed and Pickled, Bright Annealed, Cold Drawn etc
Technique: Cold Rolled , Hot Rolled
Outside Diameter: 6mm-630mm .
Thickness: 0.3mm-35mm .
Length: Single Random, as customers’ requirement .
Edge: Plain End, Beveled End.
Marking: Standard, Grade, OD, Thickness, Length. (Or according to the customer’s request.)
Package: Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests.
Lead Time: 7 to 25 working days after the receipt of 30% deposit .
Form: Pipe, Tube etc.
Value Added Service: Polish,Sawing Etc.
Characteristics of steel grade Duplex 2507 :
ASTM A312 - Seamless and straight-seam welded austenitic pipe intended for high temperature and general
corrosive service. Filler metal not permitted during welding.
ASTM A358 - Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically
only pipe up to 8 inch is produced to this specification. Addition of filler metal is permitted during welding.
ASTM A790 - Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive
service, with a particular emphasis on resistance to stress corrosion cracking.
ASTM A409 - Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in
sizes 14” to 30” with walls Sch5S and Sch 10S for corrosive and/or high.
ASTM A376 - Seamless austenitic pipe for high temperature applications.
ASTM A813 - Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive
applications.
ASTM A814 - Cold-worked welded austenitic pipe for high temperature and general corrosive service.
ASTM A213 - Standard Specification for Seamless Ferritic and Austenitic Steel Boiler, Superheater, and Heat
Exchanger Tubes.
ASTM A249 - Standard Specification for Welded and Austenitic Steel Tubing for Boilers, Superheaters, Heat
Exchangers, and Condenser.
Super duplex 2507 is a stainless steel that combines high mechanical strength and ductility.
Chemical composition in % steel Super Duplex 2507 :
C
|
Mn
|
P
|
S
|
Si
|
Cr
|
Mo
|
Ni
|
N
|
Fe
|
<0.03
|
<2.0
|
<0.035
|
<0.015
|
<1.0
|
24.0-26.0
|
3.0-4.0
|
6.0-8.0
|
0.24-0.35
|
Remaining
|
The content of chromium, molybdenum and nitrogen in the chemical composition of duplex S32750 provide it with
high resistance to pitting and crevice corrosion in chlorine-containing environment,e.g. sea water.
The low carbon content of 2507 reduces the chance of carbide precipitation during heat treatment, making the steel
resistant to intergranular corrosion.
Mechanical properties of material Super Duplex 2507 :
Tensile strength (tensile strength), min., MPa
|
730-930
|
106-135 ksi
|
Yield strength, 0.2%, MPa
|
530
|
77 ksi
|
Brinell hardness, HB
|
290
|
Elongation
|
25%
|
Charlie Impact Tests
|
100 J
|
74 ft.lb
|
Duplex S32750 features high mechanical strength (up to 570 MPa) and resistance to stress corrosion cracking. A pitting
resistance equivalent of > 40.0 makes the material resistant to pitting. The S32750 also has a low thermal expansion
coefficient and high thermal conductivity.
Closest equivalents (analogues) Super Duplex 2507 :
Germany
|
X2CrNiMoN25-7-4
|
European (EN)
|
1.4410
|
Russia (GOST)
|
02Х25Н7М3, 02Х25Н7М4
|
Characteristics and properties of stainless steel tube:
high plasticity and viscosity;
excellent resistance to corrosion processes, due to which the operation of rolled products with highly aggressive carriers
is allowed;
the possibility of using stainless steel pipes in a wide temperature range;
resistance to vibrations and mechanical influences;
bactericidal properties, allowing the use of products in the food industry;
long service life;
relatively light weight.
Seamless round stainless pipes, due to the absence of seams, are characterized by high consumer properties,
offering consumers valuable qualities:
when operating in main pipelines - absolute tightness of the pipe;
high resistance to corrosion;
the ability of the product to be deformed, while the mechanical properties of the surface are not violated;
long period of operation.
Stainless Steel Welded Round Tubes also have all of the above properties, but with the addition of a small cost that
makes them very popular in low cost projects such as general purpose piping systems
Application of stainless steel pipe:
The main areas of application of stainless steel pipes are the laying of hydraulic pipelines and the creation of pneumatic
machine systems, heating systems. Stainless steel pipelines can be laid both inside and outside buildings. Various types
of pipes are used to organize the supply of cold or hot water, as well as other liquids. Such pipelines do not have any effect
on the composition of the liquid and are suitable for operation in the food industry. They are indispensable in equipping
facades and interiors with stair railings. Less commonly, stainless pipes are used to strengthen and give strength to
any structures, buildings and structures, as well as in heating systems at thermal power plants.
Large-diameter pipes are used in the laying of gas and oil pipelines, the creation of water, sewer and heating networks.
The creation of industrial and engineering communications is also accompanied by the use of stainless steel pipes of large
diameter. Thick walls ensure the strength of the pipes when transporting raw materials under high pressure. The attractive
appearance of polished pipes makes them indispensable when equipping buildings with stair railings, racks and other elements.
Our experienced machinists, welders and technicians, modern facilities and fabrication technology enable us to
provide you with the following custom fabrication services and beyond.
Machining services:
Equipped with CNC lathes and mills, our production team can provide you with a single, customized piece, or a
full production run. We will gladly and accurately machine all types of materials to your specification.
Cutting /Sawing Services:
Whatever shape, size or density of your material, we will custom-cut to any length you require.
Custom Bending:
We provide custom bending services for Industrial and Sanitary Applications. E-mail with degree of bend and
centerline radius.
Welding:
We offer precision welding of various materials with guaranteed strength and durability.
Threading:
Whether it’s a whole or piece of pipe, a fitting or an end, we can custom thread to your specifications.
Custom Fabrications:
We pride ourselves in meeting your custom fabrication needs. Please let us know what we can do for you.
Marterials Mill:
1) 200 series: TISCO, Baosteel,Hong Wang, Tsingshan , LianZhong, ZPSS.
2) 300 series: TISCO, ZPSS, BaoXin, Yong Jin, LianZhong, JiuGang, TaiShan Steel, Zsess.
3) 400 series: TISCO, BaoXin, JiuGang, Baosteel.
ASTM / ASME A312 Duplex 2507 pipe types
Duplex 2507 Stainless Steel Pipes
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brush Duplex 2507 Stainless Steel Pipe
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Stainless Steel Tube
|
Duplex 2507 material
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astm Duplex 2507 stainless steel
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Duplex 2507 Pipe
|
Duplex 2507
|
grade Duplex 2507 stainless
|
stainless steel suppliers
|
seamless stainless steel tube
|
welded stainless steel pipe
|
Duplex 2507 pipe
|
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