KH-50
Type of coating: Lime titania type
Weld metal is martensite structure with13%Cr.
KUANG TAI METAL INDUSTRIAL CO., LTD.
廣泰金屬工業股份有限公司
No.20, Gongye Rd., Erzhen, Guantian Dist.
Tainan City 72042, Taiwan
TEL：886-6-6987615 FAX：886-6-6987315
▎Classification
| AWS A5.13 | – |
| JIS Z3251 | DF4B-600-BR |
| EN 14700 | E Fe8 |
| GB T984 | EDCr-B-03 |
▎Applications and Features
- Weld metal is martensite structure with13%Cr.
- Due to the high hardness of the weld metal, preheat and stress relieving is required to prevent cracks.
- It provides excellent corrosion resistance; acid resistance and impact wear resistance at high temperature.
- It is suitable for repairing conveyers, crane wheels, drive tumblers and chemical conveying screws.
Mixer Screw
▎Welding Position
▎Welding Instruction
- Dry the electrodes at 200-250°C for 30-60 minutes before use.
- Preheat temperature should be above 200°C. Use slow cooling and stress relieving after welding.
▎Applications
It is suitable for repairing conveyers, crane wheels, drive tumblers and chemical conveying screws.
▎Typical Chemical Composition of Weld Metal (wt.%)
| C | Si | Mn | Cr |
| 0.20 | 0.40 | 0.20 | 11.50 |
▎Typical Hardness of Weld Metal
| Condition | Vicker’s Hardness(HV) | Rockwell’s Hardness (HRC) | Shore’s hardness (HS) |
| Interpass temp. ≤150°C | 528 | 51 | 68 |
| Continuous build-up | 510 | 50 | 67 |
| Work-hardened | 630 | 56 | 75 |
| High Temp. | 200°C | 300°C | 400°C |
| Vicker`s hardness | 470 | 410 | 300 |
▎Size and Suggested Operating Range (AC or DC+)
| Diameter x Length(mm) | 3.2×350 | 4.0×350 | 5.0×350 | 6.0×400 |
| Amp | 70-120 | 100-170 | 160-220 | 200-280 |
▎Certification
JISZ3323_TCTW08007