TUNGAHARD 950 – tốt nhất

  • Hãng sản xuất PHILARC
  • Bảo hành 12 tháng
  • Giá 550.000 VNĐ
  • Giá khuyến mại 550.000 VNĐ

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TUNGAHARD 950

AWS Specification :NONE

JIS Specification: DFWA-700S

Other Specification: NONE

I. APPLICATIONS:

Hard surfacing of shovel teeth, cutter knives of dredger and speed mullers, etc.

II. DESCRIPTION:

TUNGAHARD 950 obtain a weld metal which contains large quantity of dispersed tungsten carbide and withstands heavy soil impact-free abrasion. Machining as-welded condition is impossible.

III. NOTES ON USAGE:

  • Usually over 200ºC preheating and 500~600ºC postheating are required.

  • Take care of the increase of cracking tendency when used for over triplelayer welding.

  • Underlaying with low hydrogen type electrodes (PA-52 or PA-18) is required.

  • Dry the electrodes at 150~200ºC for 30~60 minutes before use.

IV. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

C

Si

Mn

Cr

Mo

W

2.78

0.29

3.22

0.10

0.12

47.30

V. HARDNESS OF WELD METAL: 60-69 HRC (700-950 Hv)

VI. WELDING POSITIONS: FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):

Size (dia. mm)

3.2

4.0

5.0

Length (mm)

350

350

350

Current Range (Amp)

90 – 130

120 – 180

170 – 230

Que han Tungahard 950