October 12, 2019

Alloy Steel LC9 (J31300)

LC9 is one Nickel steel casting grade which listed in /352M standard only. UNS code is J31300. It’s a most popular grade for low temperature application.

Casting Methods in Casting Quality Industrial:

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

LC9 Equivalent  Steel Grade: www.castingquality.com


Reference Casting Standards:

Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service.

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.


Stainless Steel GradeLC9 Chemical Composition / Physical Properties %
(max, except where range is given)
Element, % (max, except where range is given).

GR. LC9 Heat treatment process: castingquality.com

A352 LC9 shall be liquid-quenched and tempered. Castings shall be tempered in the range of 1050 to 1175°F [565-635°C], followed by cooling in air or liquid

Castings shall be allowed to cool below the transformation, range directly after pouring and solidification before they are reheated for normalizing or liquid quenching.

GR. LC9 Steel Mechanical Property www.castingquality.com

Stainless Steel GradeTensile Strength minYield Strength, minElongation, minReduction of Area, minImpact Requirement Charpy V-Notch Ft-lbf [J]
StandardGradeUNSKsiMPaKsiMPa%%AverageSingleTemperature   °F [°C]
LC9J3130085.058575515203020[27]15[20]-320 [-196]


GR. LC9 Typical Casting Application

  • Pump Castings.
  • Valve Castings.
  • Water System castings.
  • Low temperature condition.
  • Heat Exchanger System.

Metal Castings

Alloy Steel ,
About China Castings
sand casting, investment casting, CNC machining and other castings from Chinese foundry

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