Aws A5.21 Ercocr-a Hardfacing Cobalt Base Welding Wire

• Customization: Available
• Type: S (Chromium Nickel Austenitic Stainless Steel Electrode)
• Material: Tungsten
• Model NO.: ERCoCr-A
• Diameter: 3.2/4.0/5.0mm
• Length: 350mm
• Welding Core Type: Cobalt Chromium Tungsten Alloy Cores
• Electrode Coating Type: Titanium Calcium
• Slag Characteristic: Alkaline
• Function: Hardfacing Electrode
• Welding Power: AC or DC
• Hardness HRC: 50-58
• Delivery Detail: Within 25days After Receiving Your Order
• Quality: High Level
• Package: 5kgs Per Plastic Box
• Spool: 1/5/15kgs Per Spool
• Delivery Time: 25 Days
• Service: Best After Sales
• Transport Package: 5kg/Box, 20kg/Carton or Customized
• Specification: 1.2/1.6/2.0/2.5/3.0/4.0/5.0
• Trademark: Ocean Welding
• Origin: Zhejiang, China(Mainland)
• Production Capacity: 2000 Ton/Tons Per Month

Product Description

AWS A5.21 ERCoCr-A Stellite bare rod/Stellite 6 hardfacing cobalt base welding wire
is a titanium calcium type coating, surfacing electrode with cobalt chromium tungsten alloy cores, should adopt DCRP. Surfacing metal can keep good abrasion resistance and corrosion resistance at 650 degrees.

Applications:
used in the work of 650 degrees Celsius should be able to maintain good wear resistance and a certain degree of corrosion resistance of the occasion; for example, the high temperature and high pressure welding valve and hot shear knife, the impact of hot and cold staggered place.
Chemical Composition of the deposited metal
 

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.
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