Materials

Materials

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Investment casting is most popular metalworking process, investment casting could be used to manufacturing a variety of precision components in many materials.

Carbon Steels

Cast steel usually refers to normal carbon steel, alloy steel and stainless steel.It is the investment casting material used to manufacturing steel castings with carbon content lower than 2%.


STM DIN
A216 – WCB 1.0619
A216 – WCC  
A352 – LCC 1.1138
A352 – LCB  
A439 – D2
Heat Resisting Steels

The steels are insensitive to sulphurous gases. Ferritic grades are more popular heat resistance steels since they are economical because of lower alloying elements in them. These are also called low alloy heat resistant steels.

ASTM DIN
A297 – HF 1.4825
A297 – HH 1.4837
A297 – HI 1.4846
A297 – HK 1.4848
A297 – HD 1.4823
Martensitic Steels

Martensitic stainless steel is a specific type of stainless-steel alloy. Martensitic stainless steels can be high or low carbon steels built around the Type 410 composition of iron, 12% chromium, and up to 1.2% carbon.

ASTM DIN
A743 – CA15 1.4008
A743 – CA40 1.4028
A743 CA-6NM 1.4313
Low Alloys Steels

High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they are not made to meet a specific chemical composition but rather to specific mechanical properties.

ASTM DIN
A217 – WC1 1.5419
A217 – WC4  
A217 – WC5  
A217 – WC6 1.7356
A217 – WC9 1.7379
A217 – WC11  
A217 – C5 1.7363
A217 – C12  
A217 – C12A  
Austenitic Stainless Steels

Austenitic stainless steel is a specific type of stainless-steel alloy. Stainless steels may be classified by their crystalline structure into four main types: austenitic, ferritic, martensitic and duplex. These stainless steels possess austenite as their primary crystalline structure.

ASTM DIN
A351 – CF8 1.4308
A351 – CF8M 1.4408
A351 – CF3 1.4306
A351 – CF3M 1.4404 / 1.4409
A351 – CF8C 1.4827
A351 – CF10 1.4308
A351 – CK20 1.4843
A351 – CH20  
A351 – CN7M 1.45
A351 – CG8M 1.4431
A351 – CG3M  
Nickel Based Super Alloys

A superalloy is a metallic alloy which can be used at high temperatures, often in excess of 0.7 of the absolute melting temperatures. Creep and oxidation resistance are the prime design criteria. Superalloys can be based on iron, cobalt or nickel, the latter being best suited for aeroengine applications.

ASTM DIN
A494 – M-35-1 2.4365
A494 – M-35-2  
A494 – M 30 C  
A494 – N-12MV  
A494 – N-7M  
A494 – CY40 2.4816
A494 – CW12MW 2.4686
A494 – CW6M  
A494 – CW2M 2.461
A494 – CW6MC 2.4856
A494 – CX2MW 2.4602
A494 – Cu5MCuC 2.4858
A560 – 50Cr50Ni  
A560 – 50Cr50Ni-Nb 2.4813
A560 – 60Cr40Ni  
Cobalt Based Alloys

Cobalt based materials are alloyed with chrome, nickel, and tungsten. … Due to the high chromium content (25% – 30% for the grades listed below) cobalt-based alloys provide superior corrosion resistance at high temperature.



ASTM DIN
STELLITE 3  
STELLITE 6  
STELLITE 21  
STELLITE 23  
Triballoy T 400  
Austenitic ferritic Duplex Steels

Stainless steels austenitic-ferritic (duplex) The chemical composition of this category of steels, also called biphasic, allows a mixed structure of austenite and ferrite to be obtained with unique corrosion resistance characteristics, especially to corrosion under voltage and to marine corrosion.

ASTM DIN
A351 – CF3MN 1.4435
A351 – CD4MCu  
A351 – CG6MMN 1.3964
A351 – CK3MCuN  
Super Duplex Stainless Steels

Super Duplex stainless like S32750, is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades. The balanced duel phase microstructure combines high strength with cost effective corrosion resistance particularly in high chloride environments.

ASTM DIN
A351 – CF3MN 1.4435
A351 – CD4MCu  
A351 – CG6MMN 1.3964
A351 – CK3MCuN