Products

YAWATA Ni Cast 98 (Machinable Cast Iron)

Clssification : AWS A 5.15 : ENi-CI, DIN 8573 : E Ni BG 23

Approvals : TIS

Application : Welding and filling up of cavities of cast iron products.

Property

YAWATA Ni Cast 98 is a graphite type electrode with a pure nickel core wire. Weld metal is not so hard and is easily machined. Arc is stable and slag is easy to remove. No preheating is required in general.

Classification

AWS A 5.15 : ENi-CI
DIN 8573 : E Ni BG 23

Chemical Composition

	C	Si	Mn	P	S	Ni	Fe	Cu	Al
Req.	≤2.0	≤4.0	≤2.5	N.S.	≤0.03	85 min.	≤8.0	≤2.5	≤1.0
Typ.	0.82	0.04	0.13	0.012	0.011	97.0	2.30	0.00	0.00

Req. = Requirement
Typ. = Typical results
N.S. = Not Specified
C.L. = Combined Limit for Mn + Ni + Cr + Mo + V

Mechanical Properties

	Tensile Strength N/mm² (kgf/mm²)	Vicker (Hv)	Shore	Heat Treatment
Req.	276-448	137-222	≥XX	XX
Typ.	430	193	28	As-welded

Recommended Size and Power Range

Diameter/ Length (mm)	2.6/300	3.2/350	4.0/350	5.0/350
Welding Position	Current (A)
All	50-80	70-110	110-150	150-190

Recommendations for Use

1. Use dry electrodes only. Damp electrodes should be re-dried at 80～120℃ for 60 minutes before use.
2. Remove degenerated layer completely and avoid continuous welding.
3. Deposit short runs and give hot peening at each bead.
4. Preheating and postheating are not necessary in general. However, preheating at 100～200℃ is required for a structure which is apt to cause stress cracks.