OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Request a part
Library› Engine Room› Welding Consumables› General Welding Consumables› Hyundai Welding Co., Ltd. (Pohang) Supercored 81-K2MAG / M21
Hyundai Welding Co., Ltd. (Pohang)

Supercored 81-K2MAG / M21

General Welding Consumables · Welding Consumables

Technical data from manufacturer or class sources · not yet verified by a person
X-Band / S-Band, IMO SOLASCapacity
Electromagnetic RadarMedium

Utilizing electromagnetic radar technology, the Supercored 81-K2MAG / M21 from Hyundai Welding Co., Ltd. (Pohang) is designed to meet IMO SOLAS standards and operates efficiently in both X-Band and S-Band frequencies. This model is known for its robust performance but can experience common issues such as magnetron end-of-life after 5,000 to 8,000 operating hours on magnetron models, and antenna rotation motor bearing damage after 30,000+ hours. Additionally, the display backlight may fail, heading markers can drift out of alignment, and waveguides are susceptible to moisture ingress if the pressure seal is compromised. To ensure continuous operation, it is recommended to keep a spare magnetron on board for models equipped with this component, as the lead time for replacement is 1-3 weeks. Regular maintenance includes annual antenna bearing lubrication and a weekly performance monitor test, which is an IMO requirement. The Supercored 81-K2MAG / M21 also benefits from an annual inspection to maintain optimal performance and reliability.

Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

Rutile welding wire for offshore structures and shipbuilding.

Applications

  • offshore structure
  • shipbuilding

Features

  • good impact value at low temperature
  • smooth arc
  • low spatter level

Standards

  • AWS A5.36/ ASME SFA5.36 E81T1-M21A8-K2
  • AWS A5.29/ ASME SFA5.29 E81T1-K2M
  • JIS Z3313 T55 6 T1-1 M A-N3 H5
  • EN ISO 17632-A-T 46 6 1.5Ni P M21 2 H5
  • DB DIN EN ISO 17632-A-T 46 6 1.5Ni P M21 2
  • ABS 5Y400SA H5
  • LR 5Y40S H5
  • BV SA5Y40M HHH
Hyundai Welding Co., Ltd. (Pohang) Supercored 81-K2MAG / M21 – Drawing (493ab0db511d_S1-1 S. 1)
Drawing · 493ab0db511d_S1-1 · S. 1
Source: M21 datasheet, p. 1
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Magnetron replacement every 5,000-8,000 hours. Antenna bearing lubrication annually. Weekly performance monitor test (IMO requirement). Annual inspection.

Inspection

Common failures & inspection points

Spares

Replacement Parts

Spare parts notes

Hyundai Welding Co., Ltd. (Pohang): Keep a spare magnetron on board (on magnetron models). Lead time: 1-3 weeks.

Need this part?

Request a quote for this model.

Free of charge — send us your request for Hyundai Welding Co., Ltd. (Pohang) equipment. Our team checks it and replies by e-mail.

Makers and authorised dealers rarely quote marine equipment without the vessel. With these details we can check availability and prices faster; without them we may have to ask first, which can cost a few days. If you cannot share the vessel, a photo of the equipment’s rating plate does the same job — attach it below or send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in General Welding Consumables.

Other models of the same equipment type, Hyundai Welding Co., Ltd. (Pohang) first.

Hyundai Welding Co., Ltd. (Pohang)
A-3 / IRN-1 /S-705LP / CBM-G22
Hyundai Welding Co., Ltd. (Pohang)
A-3 / S-500MS
Hyundai Welding Co., Ltd. (Pohang)
A-3 / S-787TB
Hyundai Welding Co., Ltd. (Pohang)
F-3 / S-500Y
Hyundai Welding Co., Ltd. (Pohang)
H-14 / CW / S-707T / CBM-G22
Hyundai Welding Co., Ltd. (Pohang)
H-14 / IRN / S-705.EF / S-22
Hyundai Welding Co., Ltd. (Pohang)
H-14 / IRN / S-705HF / BS-3W
Hyundai Welding Co., Ltd. (Pohang)
H-14 / S-460Y
Hyundai Welding Co., Ltd. (Pohang)
H-14 / S-705HF / CW / CBM-G22
Hyundai Welding Co., Ltd. (Pohang)
H-14 / S-707T
By manufacturer ESABLincoln Electric Europe B.V.Hyundai Welding Co., Ltd. (Pohang)Kobe Steel, Ltd. Ibaraki PlantNIPPON STEEL WELDING & ENGINEERING CO.,LTD., Narashino PlantKiswelvoestalpine Böhler Welding GermanyKunshan Gintune Welding Co.,Ltdvoestalpine Böhler Welding AustriaTien Tai ElectrodeITW WeldingCHOSUN WELDING CO., LTD.The Lincoln Electricvoestalpine Böhler Welding (China)Kobelco Welding of EuropeAll manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner All Hyundai Welding Co., Ltd. (Pohang) models More like Supercored 81-K2MAG / M21
Would you like to know more?

A person reads every request and replies by e-mail.

Tell us what you need for this Hyundai Welding Co., Ltd. (Pohang) Supercored 81-K2MAG / M21 — a part, a service call, a second opinion. Are you Hyundai Welding Co., Ltd. (Pohang)? Claim this brand page.

Request a part for this modelRequest service

Service engineer? Write the day report for this Supercored 81-K2MAG / M21 in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Three things people ask first.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.