Welding Electrode
A507 E16-25MoN-15 Welding Electrode
A507 E16-25MoN-15 is a Cr-Ni-Mo stainless steel welding electrode classified under GB/T 983. It produces an austenitic weld deposit for demanding industrial welding applications. It is commonly used for dissimilar metal welding, including stainless steel to carbon or low-alloy steel, as well as welding and repair of hardened or quenched steels.
A507 E16-25MoN-15 Welding Electrode
A507 E16-25MoN-15 is a Cr-Ni-Mo austenitic stainless steel welding electrode classified under GB/T 983. It is designed for specialty welding applications where stainless steel, carbon steel, low-alloy steel, and hardened steel need to be joined or repaired.
Technical Information
Item | Specification |
|---|---|
Product Type | Stainless Steel Welding Electrode |
Chinese Grade | A507 |
Classification | E16-25MoN-15 |
Standard | GB/T 983 |
Weld Metal | Cr-Ni-Mo Austenitic Stainless Steel |
Coating Type | Basic |
Welding Current | DC+ |
Welding Position | All Positions |
Available Diameters | 2.5, 3.2, 4.0, 5.0 mm |
Packaging | Standard Export or Customized |
Chemical Composition of Deposited Metal
Element | Requirement |
|---|---|
C | ≤ 0.12% |
Mn | 0.50–2.50% |
Si | ≤ 0.90% |
P | ≤ 0.035% |
S | ≤ 0.030% |
Cr | 14.0–18.0% |
Ni | 22.0–27.0% |
Mo | 5.0–7.0% |
Cu | ≤ 0.75% |
N | ≥ 0.10% |
The values above refer to the deposited weld metal and should be verified against the applicable standard and batch MTC for the supplied product.
Mechanical Properties
Property | Requirement |
|---|---|
Tensile Strength | ≥ 610 MPa |
Elongation | ≥ 30% |
Actual test results can vary by product batch and welding procedure. MTC documentation can be provided according to customer requirements.
Applications
A507 E16-25MoN-15 is commonly selected for difficult welding and repair applications, including:
- Stainless steel to carbon steel welding
- Stainless steel to low-alloy steel welding
- Dissimilar metal welding
- Welding of hardened or quenched low-alloy steel
- Repair welding of difficult-to-weld components
- Welding of rigid steel structures
- Heat-resistant steel applications
- Industrial maintenance and repair
The Cr-Ni-Mo austenitic weld deposit makes A507 suitable for applications where conventional stainless steel electrodes may not provide the required compatibility for the joint.
Key Features
- Cr-Ni-Mo austenitic weld deposit
- Classified as GB/T 983 E16-25MoN-15
- Designed for dissimilar metal welding
- Suitable for stainless steel to carbon steel and stainless steel to low-alloy steel joints
- Applicable to welding and repair of hardened and quenched steels
- Basic-coated electrode for DC+ welding
- Suitable for industrial maintenance and specialty repair applications
For critical applications, welding parameters, electrode storage, preheating, interpass temperature, and heat input should be established according to the applicable welding procedure.
A507 vs. A502 Welding Electrode
A507 and A502 are related Cr-Ni-Mo stainless steel electrodes, but they have different classifications and coating/current characteristics.
Grade | Classification | Coating | Welding Current |
|---|---|---|---|
A507 | E16-25MoN-15 | Basic | DC+ |
A502 | E16-25MoN-16 | Titanium-Calcium | AC / DC+ |
The appropriate electrode should be selected according to the base metals, joint design, welding procedure, power source, and project requirements.
E16-25MoN-15 and AWS Classification
E16-25MoN-15 is a GB/T 983 classification. It should not be presented as a direct AWS A5.4 equivalent without supporting technical documentation.
For international procurement, customers should specify the required classification, base material, application, electrode diameter, and applicable standard.
FAQ
What is A507 welding electrode?
A507 is the Chinese grade corresponding to GB/T 983 E16-25MoN-15, a Cr-Ni-Mo austenitic stainless steel welding electrode.
What is E16-25MoN-15 welding electrode used for?
E16-25MoN-15 is commonly used for dissimilar metal welding, stainless steel to carbon or low-alloy steel welding, and welding or repair of hardened and quenched steels.
Can A507 weld stainless steel to carbon steel?
Yes. A507 E16-25MoN-15 is commonly used for dissimilar joints such as stainless steel to carbon steel and stainless steel to low-alloy steel.
What is the difference between A507 and A502?
A507 is classified as E16-25MoN-15 and is typically used with DC+, while A502 is classified as E16-25MoN-16 and is suitable for AC or DC+ welding.
What is the chemical composition of A507?
A507 deposited weld metal contains approximately 14–18% Cr, 22–27% Ni, and 5–7% Mo, with other elements controlled according to GB/T 983 requirements.
Does E16-25MoN-15 have an AWS equivalent?
E16-25MoN-15 is a GB/T 983 classification. A direct AWS equivalent should not be assigned without supporting technical documentation.
A507 E16-25MoN-15 Welding Electrode Supplier
GD WELD supplies A507 E16-25MoN-15 welding electrodes for industrial welding, maintenance, repair, and export applications.
Diameters, packaging, MTC documentation, and other supply requirements can be customized according to the project.
Send us your required diameter, quantity, base material, application, and specification for a quotation.
