NICHIA(NIKKO)-Arc welding alloy Stellite NST-6

NICHIA(NIKKO)-Arc welding alloy Stellite NST-6

NST-6, -12, -1 are heat-resistant stellite alloys whose main components are Co, Cr, and W.

Stellite-coated arc welding rod with excellent corrosion and wear resistance.

① NST-6 has higher toughness and lower cracking susceptibility than NST-12 and NST-1.

Because of its hardness, it is used in the widest range of stellite alloys.

② NST-12 has lower hardness than NST-1, but it has toughness.

③ NST-1 has the highest hardness and wear resistance among stellite alloys.

Masu.

Application ① NST-6: Meat for high temperature and high pressure valve seats, forging molds, crushers, cutting blades, etc.

Mori welding.

② NST-12: High temperature pump shaft sleeve, cutter blade, liner sleeve, die, etc.

overlay welding.

③ NST-1: Overlaying of valve heads, high temperature pump seal rings, crusher parts, etc.

welding.

Work instructions Please re-dry the welding rod at 150-200℃ for 30-60 minutes before use.

① NST-6: Generally requires preheating to 150-300℃.

After welding, heating to 150-300℃ and slow cooling is effective in preventing cracking.

② NST-12, ③ NST-1: Generally, preheating to 300℃ or higher is required.

After welding, heating to 600℃ and slow cooling will help prevent cracking.

It's effective

Rod diameter (mm) name handle 3.2 4.0 4.8