KH-70-B

Type of coating: Low hydrogen type
Weld metal is martensite structure with carbide and boride precipitates.

Weld metal is martensite structure with carbide and boride
precipitates.
It is unable to be machined and cut.
High hardness is attainable with only one layer of weld metal. The impact resistance is inferior.
It is used in severe metal-to-earth wear, such as repairing construction machines, scraper buckets and dredge pumps.

Dredge pump outlet

Dry the electrodes at 300-350°C for 30-60 minutes before use.
Preheat temperature should be ≥ 200°C and PWHT should be 600°C.
Take the back-step method to prevent porosity at the arc starting.
Use high tensile strength low hydrogen electrode for the buffer layer in multi-layer build-up and base metal with high hardenability.

It is used in severe metal-to-earth wear, such as repairing construction machines, scraper buckets and dredge pumps.

C	Si	Mn	Cr	Mo	B
0.90	1.28	0.80	7.00	1.20	0.50

Diameter x Length(mm)	3.2×350	4.0×350	5.0×350	6.0×400
Amp	80-120	120-170	160-210	200-280

JISZ3323_TCTW08007

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