NE Tool - Made in Korea

Welding Materials Cobalt-Based Welding Rod

Stellite-equivalent Co-Cr-W bare cast rods and coated electrodes for manual & automated hardfacing.

This series of Co-Cr-W based hardfacing electrodes cover classic grades Stellite 6, 12 and 21, available in bare cast rod and coated electrode types.

Bare cast rods fit oxy-acetylene welding, TIG and PTA hardfacing with dense pure deposits for precision workpiece processing. Coated electrodes suit manual arc welding without extra shielding gas, enabling flexible on-site repair for large workpieces.

Each grade has targeted performance: Stellite 6 features balanced wear, corrosion and thermal fatigue resistance; Stellite 12 delivers higher hardness for heavy wear conditions; Stellite 21 boasts superior toughness, corrosion resistance and thermal shock performance. Widely applied to valves, pumps, forging dies, oil tools and rolling mills, they effectively extend workpiece service life under complex conditions.

Key Attributes

Diameter 3.2mm, 4mm, 5mm, 6mm
Grade Series NE-Co-Rod
Brand NE Tool

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Technical Specifications

Cobalt-Based Welding Rod - Grade Selection

8 grades available in this series. Custom particle-size cuts and chemistries available on request.

Product Grade	Chemical Composition	Manufacturing Process	Hardness (HRC)	Applicable Process	Typical Application
NE-Co-R-01	C2.00; Cr29.00; W13.00; Si0.90; Fe3.00; Mo<=1.0; Mn<=2.0; Ni<=3.0; Co Bal	VIM + Hot Forging & Drawing	50-60	OFS/PTA/CAW	High-wear parts, valve seats, cutting edges, crushers
NE-Co-R-06	C1.00; Cr29.00; W4.50; Si1.00; Fe3.00; Mo<=1.0; Mn<=2.0; Ni<=3.0; Co Bal	VIM + Hot Forging & Drawing	38-45	OFS/PTA/CAW	General wear hardfacing, valve seats, bearings, pumps
NE-Co-R-12	C1.40; Cr29.00; W8.50; Si1.00; Fe3.00; Mo<=1.0; Mn<=2.0; Ni<=3.0; Co Bal	VIM + Hot Forging & Drawing	44-50	OFS/PTA/CAW	High-temp valves, extrusion dies, exhaust valves
NE-Co-R-21	C0.20; Cr27.00; Si1.00; Fe3.00; Mo5.50; Mn<=2.0; Ni3.0; Co Bal	VIM + Hot Forging & Drawing	32-40	OFS/PTA/CAW	Anti-galling valves, corrosion-resistant chemical parts
NE-Co-R-01F	Cr25.5; W12.5; C1.9; Others<5; Co Bal	ESR + Directional Solidification	48-54	OFS/PTA/CAW	Premium critical wear parts, aerospace valve components
NE-Co-R-06F	C1.15; Si1.00; Mn<=1.0; Mo<=1.0; Cr29.00; W4.50; Ni<=3.0; Fe<=3.0; Co Bal	ESR + Directional Solidification	40-45	OFS/PTA/CAW	Premium general hardfacing, high-demand valve seats
NE-Co-R-12F	C1.4; Si1.2; Mn<=1.0; Mo<=1.0; Cr29.0; W8.0; Ni<=3.0; Fe<=3.0; Co Bal	ESR + Directional Solidification	44-50	OFS/PTA/CAW	Premium high-temp wear parts, turbine components
NE-Co-R-21F	C0.20; Si0.90; Mn<=1.5; Mo5.50; Cr27.00; W0.50; Ni3.50; Fe<=2.0; Co Bal	ESR + Directional Solidification	32-40	OFS/PTA/CAW	Premium anti-corrosion & anti-galling critical parts

Application Notes

How to Specify & Apply

Identify the Service Envelope

Determine the dominant wear mode (abrasion, erosion, adhesion, corrosion, oxidation), operating temperature and impact load. This narrows the grade selection to 2-3 candidates.

Match the Process

Each grade is validated for specific deposition processes. The "Application Process" field above shows HVOF, HVAF, APS, PTA, LMD, OFS or CAW compatibility.

Choose the Particle Size

Particle size controls deposit density and surface finish. Fine cuts (15-30um) for thin dense coatings; coarser cuts (45-90um) for thick build-up and high deposition rate.