AWS A5.21 ERCoCr-A Welding Rods
AWS A 5.21 welding rods is a kind of cobalt-based alloy, can be used in wear applications, a spraying process, and hard facing applications.
SYTOP common material include all cobalt based welding rods. Standard size include D2.7mm, D3.2mm, D4.0mm, D4.8mm, D6.4mm. Continuous cast solid rod is supplied in standard 1m lengths. (Other lengths are available). These are in stock, if you have any other different requirenment, we can also customized according to your requirenments.
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- China
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- 5000kgs+/month
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ERCoCr-A Welding rods
Cobalt welding bare rods are a type of welding electrode used to join or repair cobalt alloys. Cobalt-based alloys are known for their exceptional wear resistance, toughness, and corrosion resistance, making them ideal for use in high-wear applications such as cutting tools, valve components, and turbine blades.
AWS A5.21 Cobalt welding bare rods are typically made from a mixture of cobalt, chromium, and tungsten, which is similar to the composition of stellite alloys. These welding rods can be used with various welding processes, including TIG (tungsten inert gas) welding and plasma welding, to create a high-quality weld joint that retains the desired properties of stellite alloys.
Using cobalt welding bare rods for cobalt alloy welding allows for precise control over the welding process and helps to ensure that the finished weld is of high quality and free from defects. Cobalt welding bare rods are available in various diameters and lengths to suit different welding applications and requirements.
Cobalt Welding Rod is supplied in the following forms:
As-Cast: Meets most hardfacing requirements.
Densified: Hipped to eliminate centerline porosity.
Ground/Finished: Eliminates surface imperfections.
Applicable Processes:
Oxy-Acetylen Tungsten Inert Arc (TIG)
Standard rod diameters include:
2.7 mm
3.2 mm
4.0 mm
4.8 mm
5.0 mm
6.4 mm
Normal Lengths
350mm
1000mm
2000mm
4000mm
Note: Additional diameters, rod lengths, and packaging available upon request.
Chemical compositions and properties (%)
Brand | C | Mn | Si | Cr | Ni | Mo | W | Co | Fe | P | S | Density (g/cm3) | Hardness (HRC) |
ERCoCr-C | 2.0-2.8 | 1.0 | 29-33 | 3.0 | 1.0 | 11-14 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.50 | 50-54 | |
ERCoCr-A | 0.9-1.4 | 1.0 | 1.5 | 27-31 | 3.0 | 1.5 | 3.5-5.5 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.30 | 38-44 |
ERCoCr-B | 1.1-1.7 | 1.0 | 1.0 | 28-32 | 3.0 | 7.0-9.5 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.40 | 44-49 | |
| ERCoCr-E | 0.15-0.4 | 1.0 | 1.0 | 29-33 | 3.0 | 4.0-6.0 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.33 | 27-40 |
SYTOP cobalt-based alloy is a range of cobalt-chromium-tungsten alloys with wear resistance, corrosion and high thermal resistance. It is widely used in oil & gas, machinery, wood cutting, automotive, paper and food processing industry etc.
Specifications that we can made :
Different size bars, rods, plate
Drawing made seal , valve seat and ball , bush and sleeve etc.
Some size tube
Most of our products are made upon request so contact us right now for personal and professoinal service.
More details about cobalt chrome round bar please do not hesitate to contact me .
