Golden Bridge
Golden Bridge (JQ-J427NP) Electrode
Golden Bridge (JQ-J427NP) Electrode
SKU:JQ-J427NP-3/32-11
AWS A5 Series Chart for Filler Metals
| AWS A5 Series Code | American Welding Society (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 Oxyfuel Gas Welding (OFW) |
| AWS A5.3 | Aluminum and Aluminum Alloy Electrodes for Shielded Metal Arc Welding (SMAW) |
| 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 | Bare Aluminum and Aluminum-Alloy Welding Electrodes and Rods. |
| 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 Submerged Arc Welding (SAW) |
| 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 | Zirconium and Zirconium-Alloy Electrodes and Rods for GTAW, GMAW, PAW (Plasma Arc Welding) |
| AWS A5.25 | Specification for Carbon and Low-Alloy Steel Electrodes and Fluxes for Electroslag Welding (ESW) |
| AWS A5.26 | Specification for Carbon and Low-Alloy Steel Electrodes for Electrogas Welding (EGW) |
| 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 (FCAW) |
JQ-J427NP
JQ-J427NP is a low-hydrogen sodium coated carbon steel welding electrode for nuclear power use. It adopts DCEP and is permitted for all positions welding. It presents good welding performance with smooth arc, low spatter level, effortless slag removal ability and optimal bead appearance. The deposited metal has excellent plasticity, low-temperature toughness and crack resistance.
It is applicable for the welding works in nuclear power engineering, pressure vessels and corresponding structures.
Chemical components of deposited metal (%)
Test item |
C |
Mn |
Si |
S |
P |
Ni |
Cr |
Mo |
V |
Cu |
| Example value | 0.064 | 0.83 | 0.42 | 0.006 | 0.015 | 0.008 | 0.040 | 0.006 | 0.006 | 0.010 |
Mechanical properties of deposited metal
Test item |
Rm(MPa) |
ReL/Rp0.2(MPa) |
A(%) |
KV2(J) |
-30℃ | ||||
| Example value | 525 | 430 | 30 | 180 |
X-ray flaw detection requirements: Level I
Reference current (DC+)
Welding electrode diameter (mm) |
Φ2.5 |
Φ3.2 |
Φ4.0 |
Φ5.0 |
| Welding current (A) | 60-90 | 80-120 | 130-180 | 170-220 |
1. Before welding, the welding electrode should be baked at about 350 - 400℃ for 1h, and put in an incubator at 100 - 150℃ for ready use.
2. Impurities such as rust, oil stain and moisture must be cleared o
2. Impurities such as rust, oil stain and moisture must be cleared o
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| Diameter |
* 3/32 inches (2.5 mm), * 1/8 inches (3.2 mm), * 5/32 inches (4.0 mm), * 3/16 inches (5.0 mm) |
|---|---|
| Package |
11 lb (5 kg), 44 lb (20kg) |