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Alloy steel casting is the steel casting process that is alloyed with numerous elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. Most commonly, alloy steels used in investment casting are low-alloy steels.Our alloy steel casting parts have good strength, hardness, toughness, wear resistance, corrosion resistance, and hardenability.
Cr-Mo Alloy Steel Casting Parts
Qiming Machinery focused on casting ball mill liner, SAG mill liner and other mill liners by Cr-Mo alloy steel(AS2074 L2B, AS2074 L2C). By use this material, our mill liner have more abrasive and hardness compare with normal manganese steel.
Material
| Grade | Chemical Compostion % | |||||||||||||
| C | Si | Mn | S | P | Cr | Mo | ||||||||
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | |
| AS2074/L2B | 0.55 | 0.65 | 0 | 0.75 | 0.5 | 1 | 0 | 0.06 | 0 | 0.06 | 0.8 | 1.5 | 0.2 | 0.4 |
| AS2074/L2B | 0.70 | 0.90 | 0 | 0.75 | 0.5 | 1 | 0 | 0.06 | 0 | 0.06 | 1.3 | 2.4 | 0.2 | 0.4 |
30CrNiMo8 Alloy Steel Casting Parts
Qiming Machinery uses 30CrNiMo8 alloy steel to cast shredder wear parts, which include shredder hammer, shredder grates and shredder bars. With this material, our shredder wear parts have more good abrasive and hardness.
Material
| C | Si | Mn | Ni | P | S | Cr | Mo |
| 0.26 – 0.34 | max 0.4 | 0.5 – 0.8 | 1.8 – 2.2 | max 0.025 | max 0.035 | 1.8 – 2.2 | 0.3 – 0.5 |
Heat-resistant Steel Casting Parts
Heat-resistant steel casting parts have high strength and good chemical stability when working at high temperature. Its widely used in the manufacture of boilers, steam turbines, power machinery, industrial furnaces, and parts of the aerospace and petrochemical industries that operate at high temperatures.
Materials
| Steel No | Applicable Temperature Range And Its Main Purpose |
| 00Cr12 | Antioxidant temperature 600~700℃，Widely use in high pressure and temperature valve body, burner |
| 0Cr13Al | Antioxidant temperature 700~800℃，Gas turbine compressor blade |
| 1Cr17 | Antioxidant temperature below 900℃，the nozzle |
| 1Cr12 | Antioxidant temperature 600~700℃，Widely use in high pressure and temperature valve body, burner |
| 1Cr13 | Antioxidant temperature 700~800℃，same as 1Cr12 |
| 0Cr18Ni9 1Cr18Ni9Ti | Antioxidant temperature below 870℃，Boiler heating surface pipe, heating furnace parts, heat exchanger, muffle furnace, converter, nozzle |
| 0Cr18Ni10Ti 0Cr18Ni11Nb | High temperature corrosion resistance within 400~900℃，Pipe fittings which working temperature below 850℃ |
| 0Cr23Ni13 | Antioxidant temperature 980℃，Burner fire tube, steam turbine blade, heating furnace body, methane conversion device, high temperature separation device |
| 0Cr25Ni20 | Antioxidant temperature 980℃ 1035℃，Furnace part；Gas transmission system components which working temperature below 950℃ |
| 0Cr17Ni12Mo2 0Cr19Ni13Mo2 | Antioxidant temperature more than 870℃,working temperature 600~750℃ Chemical, refining heat exchanger tubes, furnace fittings |
| 0Cr17Ni7Al | Working temperature below 550℃ High temperature bearing unit |
