4A Duplex Stainless Steel Valve Casting

4A Duplex Stainless Steel Valve Casting

Typical Uses: Centrifuge and dewatering equipment, couplings, heat exchangers, offshore piping systems, paper rolls, pulp digesters, pump and valve components, pressure vessels.

Product Details

With more than 30 years of casting history, Wenzhou Longzhu   Industrial Co., Ltd. has a large number of experienced casting engineers and   technicians. We can produce castings of various sizes, shapes and materials   according to the drawings provided by customers, especially in the field of   valve castings. Cooperate with Fortune 500 companies for many years.





Material selection:

GS-C251.0619,WCB.WCC,LCB,LCC,LC3,4C,4D,WC6,C5,C12, C12A,CA15CF3,CF8(-196’C),CF3M,CF8M,CF8C,CD4MCu,CK3MC   uN,ZG200-400,ZG230-450,ZG270-500,2G40Cr1,ZG20CrM0.2G15C   r1Mo1V,ZG35Cr1MO.ZG16CrMOG(1Cr5Mo),ZG1Cr13,ZGOCr18Ni9 Ti.5A.KmTB   Cr26.4A




Resin sand casting, etc.

Wenzhou Longzhu Industrial Co.,Ltd

Sales manager: Mrs.peng             E-mail: sylvia@china-longzhu.com

Tel: 0086-0577-86621768              Fax: 0086-0577-86621935

Address : No.19 Longyong   Road.Xiongxin Village. Longwan,Wenzhou,Zhejiang,China

Product Detail:

Cast Grade: CD3MN; 4A

Overview: Excellent seawater corrosion resistance combined with nearly twice the strength of common stainless steels.

Typical Uses: Centrifuge and dewatering equipment, couplings, heat exchangers, offshore piping systems, paper rolls, pulp digesters, pump and valve components, pressure vessels.

MetalTek Grade: MTEK 2205

Similar Specifications

Cast UNS: J92205

Cast Grade: CD3MN; 4A

Cast ASTM: A890, A995, 4A (CENT, INVEST, SAND)

Wrought UNS: S31803

Wrought Grade: 2205

Typical Chemical Composition (% by wt.)

Cr: 21.0 - 23.5

Cu: 1.00 max

Fe: Bal

Mn: 1.50 max

Ni: 4.5 - 6.5

Si: 1.00 max

C Max: 0.030 max

Other: Mo 2.5-3.5; N 0.10-0.30

Minimum Mechanical Properties

Brinell Typical: 235

Tensile, ksi: 90

Tensile, MPa: 620

Yield, ksi: 60

Yield, MPa: 415

Elongation %: 25

Heat Treatment: Solution Annealed

Material selection

a. What is the corrosive environment? – Atmospheric, water, concentration of particular chemicals, chloride content, presence of acid.

b. What is the temperature of operation? – High temperatures usually accelerate corrosion rates and therefore indicate a higher grade. Low temperatures will require a tough austenitic steel.

c. What strength is required? – Higher strength can be obtained from the austenitic, duplex, martensitic and PH steels. Other processes such as welding and forming often influence which of these is most suitable. For example, high strength austenitic steels produced by work hardening would not be suitable where welding was necessary as the process would soften the steel.

d. What welding will be carried out? - Austenitic steels are generally more weldable than the other types. Ferritic steels are weldable in thin sections. Duplex steels require more care than austenitic steels but are now regarded as fully weldable. Martensitic and PH grades are less weldable.

e. What degree of forming is required to make the component? – Austenitic steels are the most formable of all the types being able to undergo a high degree of deep drawing or stretch forming. Generally, ferritic steels are not as formable but can still be capable of producing quite intricate shapes. Duplex, martensitic and PH grades are not particularly formable.


1. Do you have a minimum order quantity?

Different products, different minimum order quantity, please contact us for detail.

2. Do you can get a free sample?

Contact with us for more information.

3. How long of our production time?

One –three month determine by the products.

4. What kind of trade term we take?

EXW, FOB, FCA, CIF and so on.

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