April 9, 2020

Duplex Stainless Steel CD3MCuN (1C, UNI J93373)

CD3MCuN (UNS J93373) is casting duplex stainless steel (austenitic/ferritic) in ASTM A890 only. The duplex stainless steel alloys offer a combination of enhanced mechanical properties and corrosion resistance.


Casting Material Grades: ASTM A890 Grade 1C; Type 25Cr-6Ni-Mo-Cu-N; Casting UNS J93373; ACI CD3MCuN;

Casting Methods in Casting Quality Industrial:

  • Sand Casting
  • Investment Casting (Lost Wax Casting, Precision Casting)

Reference Casting Standard:

ASTM A890/890M Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application

Stainless Steel Pump Head, Pump Housing, Pump casing

Our Services

  1. Sand Casting

    Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.

    Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.

  2. Investment Casting

    also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance

  3. Shell Casting

    Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.

  4. CNC Machining

    CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.

  5. CAD Design

    Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.

  6. Tools/Mold Design

    Mould design and production will be served for metal casting ad plastic injection industry. Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.

CD3MCuN (UNS J93373) Casting Chemical composition (nominal) %: castingquality.com

Carbon, max 0.030;

Manganese, max 1.20

Silicon, max 1.10

Phosphorus, max 0.030

Sulfur, max 0.030

Chromium 24.0-26.7

Nickel, 5.6-6.7

Molybdenum, 2.9-3.8

Copper, 1.40-1.90

Nitrogen, 0.22-0.33



CD3MCuN (UNS J93373) Casting Mechanical Property:  castingquality.com

Tensile Strength, min 100ksi [690Mpa];

Yield strength, min 65Ksi [450Mpa];

Elongation 25%


CD3MCuN (UNS J93373) Casting Heat treatment process:

Heat to 1900°F [1040°C] minimum, hold for sufficient time to heat casting uniformly to temperature, quench in water or rapid cool by other means.


CD3MCuN (UNS J93373) Casting Hardness (not required): ≤HB300(HRC32)


CD3MCuN (UNS J93373) Casting Typical Application  castingquality.com


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