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Best quality Shell Casting - Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry

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Best quality Shell Casting - Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry Detail:

2205 duplex stainless steel is a duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. The ferrite and austenite structures each account for approximately 50%. It has high strength, good impact toughness and good overall and local stress corrosion resistance. The yield strength of 2205 duplex stainless steel is twice that of austenitic stainless steel. This feature enables designers to reduce weight when designing products, making this alloy more cost-effective than 316 and 317L. This alloy is particularly suitable for the temperature range of -50°F/+600°F. For applications beyond this temperature range, this alloy can also be considered, but there are some limitations, especially when applied to welded structures.

Compared with 316L and 317L austenitic stainless steel, 2205 duplex stainless steel has superior performance in resistance to pitting corrosion and crevice corrosion. It has high corrosion resistance. Compared with austenitic, its The coefficient of thermal expansion is lower and the thermal conductivity is higher. Compared with austenitic stainless steel, duplex stainless steel 2205 alloy has twice its compressive strength. Compared with 316L and 317L, the designer can reduce its weight. Alloy 2205 is especially suitable for the temperature range of -50°F/+600°F. Under strict restrictions (especially for welded structures), it can also be used at lower temperatures.

 

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Duplex stainless steel casting means the castings made of duplex stainless steel. Duplex Stainless Steel (DSS) refers to stainless steel with ferrite and austenite each accounting for about 50%. Generally, the content of less phases needs to be at least 30%. In the case of low C content, the Cr content is 18% to 28%, and the Ni content is 3% to 10%. Some duplex stainless steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N.

The DSS has the characteristics of austenitic and ferritic stainless steel. Compared with ferrite, it has higher plasticity and ductility, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance, while still maintaining brittleness, high thermal conductivity, and superplasticity as ferrite stainless steel. Compared with austenitic stainless steel, DSS has high strength and significantly improved resistance to intergranular corrosion and chloride stress corrosion. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel-saving stainless steel.

In casting production, most of the stainless steel castings are completed by investment casting. The surface of stainless steel castings produced by investment casting is smoother and the dimensional accuracy is easier to control. Of course, the cost of investment casting stainless steel parts is relatively high compared to other processes and materials.

▶ Capabilities of Investment Casting Foundry
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg – 100 kg
• Annual Capacity: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
• Tolerances: On Request.

▶ Main Production Procedure of Investment Casting
• Create a wax pattern or replica
• Sprue the wax pattern
• Invest the wax pattern
• Eliminate the wax pattern by burning it (inside the furnace or in hot water) to create a mould.
• Force molten metal pour into the mould
• Cooling and Solidification
• Remove sprue from the castings
• Finish and polish the finished investment castings

duplex stainless steel lost wax castings
Duplex Stainless Steel Cast Open Impeller-1
CF8M Stainless Steel Cast Open Impeller (2)


Product detail pictures:

Best quality Shell Casting -
 Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry detail pictures

Best quality Shell Casting -
 Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry detail pictures

Best quality Shell Casting -
 Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry detail pictures


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We purpose to understand high quality disfigurement with the output and supply the top service to domestic and overseas buyers wholeheartedly for Best quality Shell Casting - Duplex Stainless Steel Open Impeller by Investment Casting and CNC Machining – RMC Foundry, The product will supply to all over the world, such as: Naples , Saudi Arabia , Honduras , To make every client satisfied with us and achieve win-win success, we will continue to try our best to serve and satisfy you! Sincerely looking forward to cooperating with more overseas customers based on mutual benefits and great future business. Thank you.
  • The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Jason from America - 2017.02.14 13:19
    The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
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