AK-ER55-1CM-Mn Gas Shielded Wire for 1%Cr-0.5%Mo Heat-Resistant Steel.
A solid wire designed for welding 1%Cr-0.5%Mo pearlitic heat-resistant steel with good mechanical properties in service temperatures below 530℃.
Product Overview
AK-ER55-1CM-Mn is a gas shielded welding wire for 1%Cr-0.5%Mo pearlitic heat-resistant steel, suitable for use with CO2 or Ar+5%-20%CO2 shielding gas. The deposited metal meets mechanical property requirements for service temperatures below 530℃.
It is used in the welding of conventional thermal power station components, petrochemical equipment, and other structures made from 1%Cr-0.5%Mo heat-resistant steel. The wire is supplied to AWS A5.18 ER80S-G and GB/T 8110 ER55-B2-Mn classifications.
Application: It is suitable for the welding of 1%Cr-0.5%Mo heat-resistant steel with a welding wor king temperature below 530℃, and is often used in the welding of con-ventional thermal power sta tions, petrochemical equipment and other structures.
Key Benefits
Suitable for 530℃ Service Temperature.
The wire is formulated for use in applications where the operating temperature does not exceed 530℃, ensuring stable performance in heat-resistant steel joints.
Compatible with CO2 and Mixed Gas Shielding.
It performs reliably with CO2 or Ar+5%-20%CO2 shielding gas, offering flexibility in welding setup and gas availability.
Controlled Chemical Composition
The wire has a precise chemical composition with Cr at 0.9-1.2%, Mo at 0.4-0.65%, and Mn at 0.4-0.65%, supporting strength and creep resistance in heat-resistant applications.
Low Sulfur and Phosphorus Content.
Sulfur is limited to 0.025% and phosphorus to 0.030%, reducing the risk of hot cracking and improving weld metal integrity.
Where It Is Used
- Welding of 1%Cr-0.5%Mo pearlitic heat-resistant steel in conventional thermal power stations.
- Fabrication and repair of petrochemical equipment operating below 530℃.
- Structural welding in high-temperature service environments requiring controlled chemistry.
Who It Is For
- Welding consumable distributors supplying heat-resistant steel welding wires.
- Fabricators and EPC contractors working on power plant and petrochemical projects.
- Maintenance teams responsible for in-service repair of heat-resistant steel components.
Problems It Solves
- Matching filler metal chemistry to 1%Cr-0.5%Mo base steel to ensure weld metal properties meet service requirements.
- Sourcing a single wire that meets both AWS A5.18 ER80S-G and GB/T 8110 ER55-B2-Mn standards for international projects.
- Avoiding weld metal degradation in service due to improper alloying or impurity levels.
Specifications
Published by the factory for AK-ER55-1CM-Mn. Values not shown are not published on the datasheet and are marked as such rather than estimated.
| Standard | Designation |
|---|---|
| Classification | AWS A5.18 ER80S-G GB/T 8110 ER55-B2-Mn |
| Element | Content |
|---|---|
| C | 0.06-0.1 |
| Mn | 0.4-0.65 |
| P | 0.030 |
| S | 0.025 |
| Si | 0.6-0.9 |
| Cr | 0.9-1.2 |
| Mo | 0.4-0.65 |
| Cu | 0.35 |
| Ni | 0.25 |
Mechanical property data for this grade is not published on the factory datasheet. Ask our technical team for the test record before you qualify it.
Technical Features
- Solid gas shielded welding wire for 1%Cr-0.5%Mo pearlitic heat-resistant steel.
- Shielding gas: CO2 or Ar+5%-20%CO2.
- Chemical composition: C 0.06-0.1%, Mn 0.4-0.65%, P 0.030%, S 0.025%, Si 0.6-0.9%, Cr 0.9-1.2%, Mo 0.4-0.65%, Cu 0.35%, Ni 0.25%
- Suitable for welding in service temperatures below 530℃.
- Supplied to AWS A5.18 ER80S-G and GB/T 8110 ER55-B2-Mn classifications.
Use Guide
- Select shielding gas based on joint access and weld appearance needs: CO2 for deeper penetration, Ar+5%-20%CO2 for smoother bead and reduced spatter.
- Clean base metal surfaces of oil, rust, paint, and moisture before welding to avoid porosity and contamination.
- Maintain consistent wire feed speed and travel speed to ensure proper fusion and avoid undercut or lack of fusion.
- Store wire in sealed packaging to prevent moisture absorption; re-dry if exposed to humid conditions before use.
How It Compares
For higher creep strength at temperatures above 530℃, a higher alloyed wire such as ER80S-G with higher Cr and Mo levels would be required.
Related Articles
Technical background on this grade from the AKWELD knowledge centre.
Related Grades
Other welding wire in the same family.
AK-ER55-1CM-Mn Questions
What shielding gases are compatible with AK-ER55-1CM-Mn?
What standards does AK-ER55-1CM-Mn meet?
What is the maximum service temperature for the deposited metal?
What are the key alloying elements in the wire?
What packing is AK-ER55-1CM-Mn supplied in?
Can we test AK-ER55-1CM-Mn before placing a production order?
Request a Quotation for AK-ER55-1CM-Mn
Send the diameter, the quantity and the destination port. Our technical team replies with packing, pricing and the data you need to qualify the grade.