Price include Alloy Surcharge !Description
HM-55 – Seamless Metal-Cored Welding Wire for Low-Temperature Applications
Trusted Performance for Offshore and Pipeline Welding
The HM-55 seamless metal-cored wire is engineered for low-temperature environments down to −60 °C.
It offers high mechanical strength, low hydrogen levels, and excellent arc stability.
Therefore, it ensures consistent performance in offshore, pipeline, and pressure-vessel fabrication.
Because it has a seamless copper-coated construction, it resists moisture absorption and eliminates re-drying.
As a result, it maintains its stability even in humid conditions, which makes it ideal for DNV-certified operations in Norway.
In addition, HM-55 supports both manual and automated welding systems, providing smooth feeding and predictable arc response for every welder.
Key Advantages
Performs reliably in environments as cold as −60 °C
Provides high deposition rate and excellent welding efficiency
Maintains H4 diffusible hydrogen levels for superior weld integrity
Ensures stable arc control and minimal spatter
Offers clean, strong, and ductile welds
Requires no re-drying due to its seamless design
Certified by DNV (TAW00005EJ) for Norwegian maritime use
Available exclusively in Norway from RAM SVEIS OG BEMANNING AS with ready stock in Søgne (Kristiansand)
Technical Highlights
| Parameter | Specification |
|---|---|
| Classification | AWS A5.28 E80C-Ni1 H4 / EN ISO 17632-A T 50 6 1Ni M M21 1 H5 |
| Approval | DNV – Grade IV Y50MS (H5) |
| Wire Type | Seamless metal-cored wire |
| Shielding Gas | 80 % Argon + 20 % CO₂ (M21) |
| Polarity | DC (+) |
| Welding Positions | All (except vertical down) |
| Diameter | 1.2 mm / 1.4 mm / 1.6 mm |
| Yield Strength | 540 MPa (≥ 470 MPa) |
| Tensile Strength | 615 MPa (≥ 550 MPa) |
| Elongation | 26 % (≥ 24 %) |
| Impact Toughness (CVN) | 150 J @ −40 °C / 120 J @ −60 °C |
| Diffusible Hydrogen | < 3.0 ml / 100 g (Guaranteed < 4.0 ml / 100 g) |
| Voltage Range | 14 – 36 V (depends on diameter) |
| Current Range | 90 – 380 A |
| Gas Flow | 15 – 25 L/min |
| Stick-out | 15 – 25 mm |
| Packaging | 5 kg / 15 kg spools / 200 kg drums |
Click Here to download – HM-55-Seamless-Metal-Cored-Wire-Specification
Applications
HM-55 is engineered for demanding industrial use. It performs exceptionally in:
Offshore and shipyard fabrication
Pipeline and pressure-vessel construction
Structural steel assembly and heavy-equipment production
Root-pass welding at low temperatures
Automated and high-deposition welding setups
Moreover, the wire ensures consistent feeding, clean slag removal, and stable arcs, which increase productivity while reducing cleanup time. Consequently, Norwegian welders achieve reliable results even in challenging field conditions.
Chemical Composition (Typical wt %)
| Element | % |
|---|---|
| C | 0.060 |
| Mn | 1.340 |
| Si | 0.570 |
| Ni | 1.000 |
| Mo | 0.150 |
| Cr | 0.030 |
| P | 0.010 |
| S | 0.005 |
Typical Operating Parameters
| Wire Diameter | Voltage (V) | Current (A) | Stick-out (mm) | Gas Flow (L/min) | Polarity | Recommended Use |
|---|---|---|---|---|---|---|
| 1.2 mm | 14 – 32 | 90 – 300 | 15 – 20 | 15 – 25 | DC + | Offshore and pipeline welding |
| 1.4 mm | 16 – 34 | 120 – 340 | 15 – 25 | 15 – 25 | DC + | Heavy fabrication and shipbuilding |
| 1.6 mm | 18 – 36 | 140 – 380 | 15 – 25 | 15 – 25 | DC + | Automated high-deposition welding |
Available Packaging
HM-55 comes in 5 kg and 15 kg plastic spools, and also 200 kg drums for industrial systems.
All configurations are in stock at RAM SVEIS OG BEMANNING AS (Søgne, Kristiansand) and ready for nationwide delivery.
As a result, customers benefit from fast supply and guaranteed DNV-compliant quality.
Why Choose RAM SVEIS OG BEMANNING AS
RAM SVEIS OG BEMANNING AS delivers certified welding consumables and technical expertise throughout Norway.
We provide traceability, verified quality, and industrial support for each wire we distribute.
By choosing HM-55, you gain a DNV-approved solution built for maritime, energy, and offshore industries.
In addition, our Kristiansand warehouse ensures immediate availability for every professional welder in Norway.
Frequently Asked Questions (FAQ)
1. What is HM-55 used for?
HM-55 is a metal-cored wire for low-temperature applications. It performs efficiently in offshore, pipeline, and shipyard projects where impact toughness is essential.
2. Why choose a metal-cored seamless wire?
Metal-cored wires deliver faster deposition and smoother arcs. Moreover, their seamless design prevents moisture absorption, which reduces hydrogen cracking.
3. What shielding gas is recommended?
Use 80 % Argon / 20 % CO₂ at 15 – 25 L/min. This mixture provides clean welds, stable arcs, and minimal spatter.
4. Does HM-55 meet DNV standards?
Yes. It holds DNV approval (Grade IV Y50MS H5) and is certified for use in Norwegian offshore and vessel fabrication.
5. How does it perform in extreme cold?
HM-55 maintains impact values of 120 J at −60 °C, guaranteeing durable, crack-resistant welds in arctic conditions.
6. Where can I buy HM-55 in Norway?
It is available exclusively from RAM SVEIS OG BEMANNING AS, with stock in Søgne (Kristiansand) and fast nationwide shipping.
7. Can I request bulk orders or technical advice?
Yes. We provide bulk pricing, technical recommendations, and project support. Contact us at post@rammultiinvest.no or call +47 468 43 758 / +47 968 87 890.
Reviews
There are no reviews yet.