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MOULDWELD
AWS Specification: NONE
JIS Specification:

NONE

Other Specification:

I. APPLICATIONS:

NHF-MOULDWELD is suitable for cladding high-grade parent metals like boiler and fine-grained structural steels, quenched and tampered and alloy structural steels.  It can also be used to join non-alloy and alloy steels, cast steel, manganese steels, tool steels, die steels, heat-treatable steels.  For joining clad plates on the cladding side.  Joinings and surfacings are not subjected to any heat treatment.  The molybdenum content together with the high contents of chromium and nickel makes the work-hardening weld metal (Brinell hardness up to 350) exceptionally suited for use in dies and mould-making.

II. DESCRIPTION:

Special austenitic electrode for surfacing and joining.  Recovery 120%

III. NOTES ON USAGE:

 

Weldable in all position except vetical down. Steady arc, good slag removability. Only dry electrodes may be used, without exception.

 

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

 

C

Si

Mn

Cr

Mo

Ni

0.12

0.80

1.00

24.00

3.50

13.00

V. TENSILE STRENGTH: 113,000 psi or 785 N/mm2

VI. HARDNESS OF WELD METAL: 240 HB, work hardening up to 350 HB

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

 

Size

Dia.

3.2

4.0

5.0

(mm)

Length

350

350

350

Current Range

50-80

80-110

110-140