Our HCWI materials
High chrome white iron SD05
High chrome white iron SD05
High chrome white iron SD05
- Alloy code: SD05(ASTM A532 Class III Type A)
- C% by wt.: 2.3~3.3
- Cr% by wt.: 26-28
- Microstructure (as cast): Eutectic carbide + austenite
- Hardened Microstructure: Eutectic carbide + secondary carbide + martensite + retained austenite
- Hardness（HRC）:≥58
- Impact (J/cm2): 5~7
- Has excellent performance under erosive conditions. It is effectively used in a wide range of slurry types. It can be divided into 3 types with different hardness, they are particularly suited to applications where mild corrosion resistance, as well as erosion resistance is required.
High chrome white iron SD07
High chrome white iron SD05
High chrome white iron SD05
- Alloy code: SD07
- C% by wt.: 2.3~3.3
- Cr% by wt.: 14~18
- Microstructure (as cast): Eutectic carbide + austenite
- Hardened Microstructure: Eutectic carbide + secondary carbide + martensite + a small amount of retained austenite
- Hardness（HRC）:≥58
- Impact (J/cm2): 5~7
- Compared with SD05, the abrasiveness is slightly lower, the erosion resistance is good, and its value is easier to play under the condition of low wear.
High chrome white iron SD12
High chrome white iron SD05
High chrome white iron SD12
- Alloy code: SD12
- C% by wt.: 4.0~5.5
- Cr% by wt.: 30~40
- Microstructure (as cast): Eutectic carbide + austenite + martensite
- Hardened Microstructure: Eutectic carbide + austenite + martensite
- Hardness（HRC）: 60~67
- Impact (J/cm2): 2
- It has higher wear resistance than SD05, but not corrosion resistant. Can be used for PH value 6~14 working conditions where SD05 performance cannot be satisfied.
High chrome white iron SD33
High chrome white iron SD33
High chrome white iron SD12
- Alloy code: SD33
- C% by wt.: 1.8~2.3
- Cr% by wt.: 30~40
- Microstructure (as cast): Eutectic carbide + ferrite
- Hardened Microstructure: Eutectic carbide + secondary carbide + ferrite
- Hardness（HRC）: 30~40
- Impact (J/cm2): 5~7
- Has certain erosion resistance and corrosion resistance, used for oxidizing slurry with PH ≥ 1, such as Conveying phosphogypsum, nitric acid, sulfuric acid, phosphoric acid and other media.
High chrome white iron SD49
High chrome white iron SD33
High chrome white iron SD49
- Alloy code: SD49
- C% by wt.: 1.3~1.8
- Cr% by wt.: 23~30
- Microstructure (as cast): Eutectic carbide + ferrite + austenite
- Hardened Microstructure: Eutectic carbide + secondary carbide + ferrite + austenite
- Hardness（HRC）: 35~45
- Impact (J/cm2): 5~7
- Has certain erosion resistance and good corrosion resistance, used for Weakly acidic environment with PH≥ 4, especially suitable for flue gas desulfurization devices in thermal power plants.
High chrome white iron SD61
High chrome white iron SD33
High chrome white iron SD49
- Alloy code: SD61
- C% by wt.: 3-5
- Cr% by wt.: 30~35
- Microstructure (as cast): A fine dispersion of hard primary iron/chromium carbides, surrounded by a eutectic matrix
- Hardened Microstructure: eutectic iron/chromium carbides +secondary carbides and martensite
- Hardness（HRC）: ≥62
- Impact (J/cm2): 5~7
- Alloy SD61 is a hypereutectic white iron, suitable for high wear duties where corrosion is not severe. It is a good option when SD05 and SD12 cannot provide an adequate wear life. It can transport medium with PH range of 6 ~ 14. The alloy may provide up to 3 times the life of SD05 and SD12 parts.