Stellite 6 Welding Rod Stellite 21 Rod Hardfacing Surfacing Welding Wire Cobalt

• Customization: Available
• Type: Wear-Resistant Alloy
• Material: Cobalt Base Alloys
• Model NO.: Stellite 21
• Flux Containing: Not Containing Flux
• Slag Characteristic: Acidic
• Extended Length: >20mm
• Hardness: 40-45 HRC
• Transport Package: 5kg/Box
• Specification: 2.7mm 3.2mm 4.0mm 4.8mm, 5.0mm etc
• Trademark: Xunzhuo
• Origin: China
• HS Code: 83113000
• Production Capacity: 500kg/ Month

Product Description

Product picture



Specification 
          

 The cobalt base alloys are available as cobalt rods, cobalt electrodes, cobalt wire and cobalt powder.  Cobalt alloys are used primarily for wear applications, our cobalt alloys can be applied by any known fusion welding process or HVOF spraying proess and are particularly well-suited for hardfacing applications.  Cobalt alloys are the most widely used wear resistant hardfacing materials available.  Their unique combination of wear resistance, strength and corrosion resistance make them adaptable to many harsh environments.  Cobalt alloys are selected for their excellent resistance to the widest combination of wear types including adhesive wear, abrasion, erosion, contact fatigue, thermal shock, cavitation wear, corrosion and oxidation.  The degree to which the cobalt alloys retain these properties assures their unique position in the wear technology field.

 

Cobalt-Based Alloy Bare Rod: 
- AWS RCoCr-C (Stellite 1) 
- AWS RCoCr-A (Stellite 6) 
- AWS RCoCr-B (Stellite 12)
-AWS RCoCr-E (Stellite 21)

AWS RCoCr-C 
It has excellent wear and heat resistance at high temperature.
Recommended use for making valve seal inserts , rotating sealing ring, drill heads, cutter edge ,etc

 

AWS RCoCr-A 
The most widely used Cobalt Alloy with good mechanical 
properties at different temperatures,  Recommended use 
for making valve seat material, hot shear blade, high temperature valve , turbine blade ,etc.

 

AWS RCoCr-B 
It has excellent resistance on high heat, corrosion 
and abrasion.  Recommended use for making high-
pressure valve, shear edge, sawteeth, etc.

 

AWS RCoCr-E 

It has excellent resistance on high heat, corrosion 
and abrasion.  Recommended use for making fuild valve,

brass casting die , vlave seat, etc.

Application:

The base-cobalt alloys used successfully for years in applications involving severe conditions of wear or wear combined with corrosion and/or high temperature. Typical applications; shaft sleeves, bushings, valve parts, pump plungers, doctor blades, feed screws, knives, wear plates, and bearings. It is widely used in oil & gas, machinery, wood cutting, automotive, paper and food processing industry, etc.

 

Alloy	Nominal Analysis of Welding Electrode								Other	UNS	ASME/AWS	Hardness(HRC)
	Co	Cr	W	C	Ni	Mo	Fe	Si
Cobalt Base Alloy Bare Welding Electrodes
Stellite1	Bal.	32	12	2.45	≤3	≤1	≤3	≤2	≤0.5	R30001	(SF)A5.21 ERCoCr-C	51-56
Stellite6	Bal.	30	4-5	1.2	≤3	≤1	≤3	≤2	≤0.5	R30006	(SF)A5.21 ERCoCr-A	40-45
Stellite12	Bal.	30	8	1.4-1.8	≤3	≤1	≤3	≤2	≤0.5	R30012	(SF)A5.21 ERCoCr-B	46-51
Stellite20	Bal.	33	16	2.45	≤3	≤1	≤3	≤2	≤0.5	-	-	53-59
Stellite21	Bal.	28	-	0.25	3	5.2	≤3	≤1.5	≤0.5	R30021	(SF)A5.21 ERCoCr-E	28-40*
Stellite22	Bal.	28	-	0.3	1.5	12	≤3	≤2	≤0.5	-	-	41-49*
Stellite25	Bal.	20	14	0.1	10	≤1	≤3	≤1	≤0.5	-	-	20-45*
Stellite31	Bal.	26	7.5	0.5	10	-	≤2	≤1	≤0.5	R30031	-	20-35*
StelliteF	Bal.	26	12	1.7	22	≤1	≤3	≤2	≤0.5	R30002	(SF)A5.21 ERCoCr-F	40-45
Stellite107	Bal.	31	4	2	24	-	≤2	≤3	≤0.5	-	-	38-47
Stellite190	Bal.	27	13.5	3.2	≤1	≤1	≤3	1	≤0.5	R30014	(SF)A5.21 ERCoCr-G	54-59
Stellite250	Bal.	28	-	0.1	-	-	21	≤1	≤0.5	-	-	20-28
Stellite306	Bal.	25	3	0.5	6	-	4	1	6%Nb	-	-	32-42*
Stellite694	Bal.	28	19	1	5	-	≤3	1	1&V	-	-	48-54
Alloy	Nominal Analysis of Welding Electrode								Others	UNS	ASME/AWS	Hardness(HRC)
	Co	Cr	W	C	Ni	Mo	Fe	Si
Cobalt Base Alloy Bare Welding Electrodes
Stellite706	Bal.	31	-	1.2	≤3	4	≤3	≤1	≤1	-	-	39-44
Stellite712	Bal.	31	-	1.5/1.9	≤3	8	≤3	≤2	≤1	-	-	46-51
ULTIMET	Bal.	26	2	0.06	9	5	3	-	≤1	R31233	-	28-45*

Electrode specification and reference current (AC or DC+):

Diameter(mm)	3.2	4.0	5.0
Length(mm)	350	350	350
Current(A)	120-160	140-190	150-210

Notes:

1: before welding electrode must be 150 degrees bake for 1 hours
2: according to the size of the tool and the type of parent material, must be preheated by 300-600 DEG C, should use small current short arc welding
3: after welding should be tempered at 600-700 DEG C after 1 hours and then cold or immediately put the workpiece into the dry and hot sand box or plant ash in the cold, so as not to crack.

Packages:
 

Size: 2.7mm*1000mm

package: 5 kg/inner box

Size: 3.2mm*1000mm

package: 5 kg/inner box

Size: 4.0mm*1000mm

package: 5 kg/inner box

outer box is cardboard carton

However, we can do it as client's request: 

Delivery:7-15 days after order confirmed