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[Technical Specification Of HART-P-100 ]
1. Base Material:
ASTM A36(Q235B), ASTM A529A(Q345B), other weldable steel is optional;
Base thickness: 3 to 30 mm
2. Hardfacing Layer:
Chromium carbon alloy on Fe basis(austenite)
Bulk hardness: >630HV
Mean hardness: >55HRC
Layer thickness: 3 to 30 mm
3. Welding Processes:
Advanced open arc welding and submerged arc welding
4. Alloy Description:
Austenitic chrome carbide iron(Chromium white iron)
5. Carbide Hardness:
>1500HV
6. Volume Fraction of Carbide:
>30%
7. Chemical Composition:
Carbon: 3-6%
Chromium: 18-34%
*Various alloys to be used depend on different operating condition and applications.
Thick | C% | Cr% | Mn% | Si% | HRC | |
3 on 3 | 3~4 | 18~20 | 0.5~1 | 0.5~1 | 56~58 | |
3 on 4 | 3~4 | 18~20 | 0.5~1 | 0.5~1 | 56~58 | |
3 on 5 | 3~4 | 18~22 | 0.5~1 | 0.5~1 | 58~60 | |
3 on N | 3.5~4.5 | 20~25 | 0.5~1 | 0.5~1 | 58~62 | N>5 |
4 on N | 3.5~4.5 | 20~25 | 0.5~1 | 0.5~1 | 58~62 | |
5 on N | 4~6 | 23~25 | 0.5~1 | 0.5~1 | 58~62 | |
6 on N | 4~6 | 24~28 | 0.5~1 | 0.5~1 | 58~62 | |
7 on N | 4.5~6 | 24~28 | 0.5~1 | 0.5~1 | 58~62 | |
8 on N | 4.5~6 | 24~28 | 0.5~1.5 | 0.5~1 | 58~62 | |
9 on N | 5~6 | 26~30 | 0.5~1.5 | 0.5~1 | 60~64 | |
10 on N | 5~6 | 26~30 | 0.5~1.5 | 0.5~1 | 60~64 | |
11 on N | 5~6 | 26~30 | 0.5~1.5 | 0.5~1 | 60~64 | |
12 on N | 5~6 | 26~34 | 0.5~1.5 | 0.5~1 | 60~64 | |
N on N | 5~6 | 26~34 | 0.5~2 | 0.5~1 | 60~64 | N>12 |
8. Microstructure:
Composed of a high proportion of extremely hard primary M7C3 chromium rich carbides dispersed in a ductile eutectic austenite matrix.
Maintains 30% to 50% of primary carbides to provide a good wear resistance and homogenous bonding.