Name: Golden Bridge (D507Mo) Electrode
Brand: Golden Bridge
SKU: D507MO-1/16-0005
Availability: InStock

D507Mo

Introduction：

D507Mo is a 1Cr13 valve surfacing welding electrode with low-hydrogen sodium coating, which adopts DCEP connection method. The surfacing metal is 1Cr13 semi-ferritic high chromium steel. The surfacing layer has the characteristics of air quenching, and the surfacing metal has high medium temperature hardness, good thermal stability and erosion resistance. If it is used with D577 welding electrode, it can obtain good scratch resistance.

Purpose：

The product is applicable for surfacing welding of sealing surface of medium-temperature high-pressure stop valve with working temperature below 510℃.

Chemical components of deposited metal (%)

Test item	C	Cr	Ni	Mo	W
Example value	0.14	11.75	3.50	0.45	1.30

Hardness of surfacing layer: (air cooling after welding, softening resistance to 500℃)

Test item	HRC
Example value	40

Reference current (DC+)

Welding electrode diameter (mm)	Φ3.2	Φ4.0	Φ5.0
Welding current (A)	80-120	120-160	160-200

Precautions:

1. Before welding, the welding electrode must be baked at 300℃ for 1h.
2. The surfacing layer should be thicker than 5mm after processing, so as to ensure its hardness and stability of composition.

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Diameter	* 1/16 inches (1.6 mm), * 3/32 inches (2.4 mm), * 1/8 inches (3.2 mm), * 5/32 inches (4.0 mm), * 3/16 inches (5.0 mm)
Package	5 lb, 10 lb, 30 lb, 44 lb, 50 lb

AWS A5 Series Code	AWS Standard Title
AWS A5.1	Carbon Steel Electrodes for Shielded Metal Arc Welding (SMAW)
AWS A5.2	Carbon and Low-Alloy Steel Rods for Gas Shielded Arc Welding (GMAW/GTAW)
AWS A5.3	Aluminum and Aluminum Alloy Electrodes and Rods for Gas Shielded Arc Welding (GMAW/GTAW)
AWS A5.4	Stainless Steel Electrodes for Shielded Metal Arc Welding (SMAW)
AWS A5.5	Low-Alloy Steel Electrodes for Shielded Metal Arc Welding (SMAW)
AWS A5.6	Copper and Copper-Alloy Electrodes for Shielded Metal Arc Welding (SMAW)
AWS A5.7	Copper and Copper Alloy Bare Welding Rods and Electrodes
AWS A5.8	Filler Metals for Brazing and Braze Welding.
AWS A5.9	Carbon Steel Electrodes and Fluxes for Submerged Arc Welding (SAW)
AWS A5.10	Carbon Steel Electrodes and Rods for Gas Welding and Carbon Steel Filler Metals for Gas Brazing
AWS A5.11	Nickel and Nickel Alloy Welding Electrodes for Shielded Metal Arc Welding (SMAW), Gas Tungsten Arc Welding (GTAW), and Plasma Arc Welding (PAW)
AWS A5.12	Tungsten and Tungsten Alloy Electrodes for Arc Welding and Cutting
AWS A5.13	Surfacing Electrodes for Shielded Metal Arc Welding (SMAW)
AWS A5.14	Nickel and Nickel-Alloy Bare Welding Electrodes and Rods
AWS A5.15	Welding Electrodes and Rods for Cast Iron
AWS A5.16	Titanium and Titanium Alloy Welding Electrodes and Rods
AWS A5.17	Carbon Steel Electrodes and Fluxes for Electroslag Welding
AWS A5.18	Carbon Steel Electrodes and Rods for Gas Shielded Arc Welding (GMAW)
AWS A5.19	Magnesium Alloy Welding Electrodes and Rods
AWS A5.20	Carbon Steel Electrodes for Flux Cored Arc Welding (FCAW)
AWS A5.21	Bare Electrodes and Rods for Surfacing
AWS A5.22	Stainless Steel Electrodes for Flux Cored Arc Welding (FCAW)
AWS A5.23	Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding (SAW)
AWS A5.24	Carbon and Low-Alloy Steel Electrodes, Fluxes, and Consumables for Electroslag Welding
AWS A5.25	Specification for Carbon and Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding
AWS A5.26	Specification for Carbon and Low-Alloy Steel Electrodes and Fluxes for Electroslag Welding
AWS A5.27	Specification for Carbon and Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding
AWS A5.28	Specification for Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding
AWS A5.29	Specification for Low-Alloy Steel Electrodes for Flux Cored Arc Welding