Surfacing welding rod

Surfacing welding is to weld a layer of wear-resisting, corrosion resistant, heat resistant properties of the metal layer of welding technologyon the surface of the workpiece or edge , . o repair and improve the service life of parts, the reasonable use of material, improve product performance and reduce the cost has remarkable economic benefits.
Overlaying welding work and working conditions are very complicated, it is overlaied according to the different requirements for selecting a suitable electrode. Different workpiece and surfacing electrode will use a different welding technology, to obtain satisfactory surfacing welding effect.

Surfacing Electrode

Model	GB	Coating	Welding current	deposited metal	HR	Usage
D102	EDPMn2-03	Low hydrogen	ac/dc	1Mn3	HB≥220	Surfacing welding on low hardness under normal temperature
D106	EDPMn2-16	Low hydrogen	ac/dc	1Mn3	HB≥220	Surfacing welding on low hardness under normal temperature
D107	EDPMn2-15	Low hydrogen	DCEP	1Mn3	HB≥220	Surfacing welding on low hardness under normal temperature
D112	EDPCrMo-Al-03	Titanium calcium	ac/dc	2Cr1.5Mo	HB≥220	Surfacing welding on low hardness under normal temperature
D126	EDPMn4-16	Low hydrogen	ac/dc	2Mn4Si	HRC≥28	In the normal temperature hardness surfacing
D127	EDPMn4-15	Low hydrogen	DCEP	2Mn4Si	HRC≥28	In the normal temperature hardness surfacing
D132	EDPCrMo-A2-03	Titanium calcium	ac/dc	4Cr2Mo	HRC≥30	In the normal temperature hardness surfacing
D167	EDPMn6-15	Low hydrogen	DCEP	4Mn4Si	HRC≥50	in the normal temperature,High hardness surfacing
D172	EDPCrMo-A3-03	Titanium calcium	ac/dc	4Cr2Mo	HRC≥40	in the normal temperature,High hardness surfacing
D207	EDPCrMnSi-A1-15	Low hydrogen	DCEP	7Mn2Cr3Si	HRC≥50	in the normal temperature,High hardness surfacing
D212	EDPCrMo-A4-03	Titanium calcium	ac/dc	5Cr2Mo2	HRC≥50	in the normal temperature,High hardness surfacing
D217A	EDPCrMo-A3-15	Low hydrogen	DCEP	4Cr2Mo2	HRC≥40	in the normal temperature,High hardness surfacing
D227	EDPCrMoV-A2-15	Low hydrogen	DCEP		HRC≥55	Under impact load for a certain amount of wear parts of surfacing, such as machine disc cutter by the grinding surface
D237	EDPCrMoV-A1-15	Low hydrogen	DCEP		HRC≥50	Welding by sediment wear and corrosion damage of hydraulic machinery, scoop, mining machinery parts, etc

D256	EDMn-A-16	Low hydrogen	AC and DC	Mn13	HB≥170	High manganese steel surfacing
D266	EDMn-B-16	Low hydrogen	AC and DC	Mn13Mo2	HB≥170	Used for surfacing welding on parts of all kinds of crushers, high-manganese steel rails, buckets, bulldozers,
D276	EDCrMn-B-16	Low hydrogen	AC and DC	2Mn13Cr13	HB≥210	Suitable for surfacing welding on parts of water turbines worn-out by atmospheric corrosion,
D277	EDCrMn-B-15	Low hydrogen	DCEP	2Mn13Cr13	HB≥210	Suitable for surfacing welding on parts of water turbines worn-out by atmospheric corrosion,.
D286A		Low hydrogen	AC and DC	Mn14Mo2	HB≥370	Suitable for surfacing welding on high-manganese steel. It is specially used for surfacing welding and repairing of high-manganese rails and switches, and also used for surfacing welding on impacted and worn-out parts of all kinds of crushers, bulldozers, etc.
D286B		Low hydrogen	AC and DC	Mn14Ni3	HB≥270	Suitable for surfacing welding on high-manganese steel. It is specially used for surfacing welding and repairing of high-manganese rails and switches, and also used for surfacing welding on impacted and worn-out parts of all kinds of crushers, bulldozers
D307	EDD-D-15	Low hydrogen	DCEP	C1Cr4W18V1	HB≥50	Current：Able to be used for surfacing welding on cutter blanks made of medium-carbon steel (such as 45 and 45Mn steel) to make blades so as to be used as substitute solid high speed steel, and also used for surfacing welding and repairing of worn-out cutters and
D317	EDRCrMoWV-A3-15	Low hydrogen	DCEP	C1Cr3Mo4W5V2	HRC≥50	Current：Used for surfacing welding on all kinds of cold-punching dies and cutting tools, and also used for repairing machinery elements requiring higher wear-resistance.
D322	EDRCrMoWV-A1-03	Titanium calcium	AC DC	5Cr5W9Mo2V	HRC≥55	Current：Used for surfacing welding on all kinds of cold-punching dies and cutting tools, and also used for repairing machinery elements requiring higher wear-resistance.
D327	EDRCrMoWV-A1-15	Low hydrogen	DCEP	5Cr5W9Mo2V	HRC≥55	Current：Used for surfacing welding on cast steel or forged steel to make forging dies, and also used for repairing forging dies.
D337	EDRCrW-15	Low hydrogen	DCEP	3Cr2W8	HRC≥48	Current：Used for surfacing welding on cast steel or forged steel to make forging dies, and also used for repairing forging dies.
D397	EDRCrMnMo-15	Low hydrogen	AC DC	5CrMnMo	HRC≥40	Current：Used for surfacing welding on cast steel or forged steel to make hot forging dies for blanks, and also used for repairing old forging dies made of 5CrMnMo, 5CrNiMo and 5CrNiSiW or surfacing welding on high strength wear-resistant parts.
D502	EDCr-A1-03	Titanium calcium	AC DC	1Cr13	HRC≥40	Used for surfacing welding on sealing faces of medium temperature
D507	EDCr-A1-15	Low hydrogen	DCEP	1Cr13	HRC≥40	Used for surfacing welding on sealing faces of medium temperature
D507Mo	EDCr-A2-15	Low hydrogen	DCEP	1Cr13	HRC≥37	Current：This is a kind of universal electrode used for surface overlaying, used for surfacing welding on axles, valves, et. Made of carbon steel or alloy steel below450℃.

D507MoNb	EDCr-A1-15	Low hydrogen	DCEP	1Cr13MoNb	HRC≥37	Used for surfacing welding on sealing faces of medium and low pressure valves below450℃.
D512	EDCr-B-03	Low hydrogen	DCEP	2Cr13	HRC≥45	D512 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers,
D516MA	EDCrMn-A-16	Low hydrogen	AC and DC	2Cr13	HRC38-48	Used for surfacing welding on parts working in water, steam and petroleum below450℃, such as cast steel 25 and sealing faces of high and medium pressure valves.
D517	EDCr-B-15	Low hydrogen	DCEP	2Cr13	HRC≥45	D517 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers,
D547	EDCrNi-A-15	Low hydrogen	DCEP	2Cr13	HB270-320
D547Mo	EDCrNi-B-15	Low hydrogen	DCEP	1Cr20N10Si5Mo	HRC≥37	Used for surfacing welding on sealing faces of high pressure valves below600℃.
D557	EDCrNi-C-15	Low hydrogen	DCEP	1Cr18Ni8Si7	HRC≥37	Current：Used for surfacing welding on sealing faces of medium temperature high pressure valves below510℃. When welding gate valves, its service life will be longer if used together with D507Mo.
D577	EDCrMn-C-15	Low hydrogen	DCEP	10Cr14Mn14	HRC≥28	Current：Used for surfacing welding on sealing faces of medium temperature high pressure valves below510℃. When welding gate valves, its service life will be longer if used together with D507Mo.
D608	EDZ-A1-08	graphite mould	AC and DC	C4Cr3Mo3	HRC≥55	Used for welding parts of agricultural machinery, mining equipment, etc. which receive grit wear and slight impact. Main Applications：
D628		graphite mould	AC and DC	C3Cr20Mo4	HRC≥60	Used for surfacing welding on wear-resistant surfaces, which receive slight impact loads but have excellent abrasive wear-resistance, such as hammerheads of impact coal mills, strike plates of fan coal mills, etc.
D667	EDZCr-C-15	Low hydrogen	DCEP	C3Cr30Ni4	HRC≥48	Used for surfacing welding on occasions requiring intense wear-resistance, corrosion-resistance and atmospheric corrosion-resistance, such as axle bushes of centrifugal cracking pumps in petroleum industry, parts of mining crushers, valve bonnets on diese
D687	EDZCr-D-15	Low hydrogen	DCEP		HRC≥58
D707	EDW-A-15	Low hydrogen	DCEP	C2W45MnSi4	HRC≥60

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Surfacing welding rod

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