MIG wire BOHLER DCMS-IG 1.2mm/18kg (CrMo1) 27860
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MIG wire BOHLER DCMS-IG 1.2mm/18kg (CrMo1) 27860
14,50 € incl. tax
BÖHLER DCMS-IG MIG Wire 1.2 mm / 18 kg (CrMo1) – 27860
BÖHLER DCMS-IG is a professional low-alloy solid welding wire designed for MAG welding of heat-resistant chromium-molybdenum steels. It complies with classifications EN ISO 21952-A: G CrMo1Si and AWS A5.28: ER80S-B2Si. It is primarily intended for welding boiler, pipe, and structural steels alloyed with approximately 1.25% chromium and 0.5% molybdenum.
The alloying elements chromium (Cr) and molybdenum (Mo) contribute to the strength, toughness, and creep resistance of the weld metal at elevated temperatures. The weld metal has a predominantly bainitic microstructure and provides good mechanical properties after tempering or appropriate heat treatment. The manufacturer states usability at design temperatures up to 570 °C, provided that the relevant technological and material requirements are met.
The wire is particularly suitable for welding 13CrMo4-5 (1.7335) steel and other compatible heat-resistant materials, such as 15CrMo5 (1.7262), 16CrMoV4 (1.7728), 24CrMo5 (1.7258), 25CrMo4 (1.7218) and 42CrMo4 (1.7225). It is also used for selected steel castings and materials according to ASTM, particularly A335 P11/P12, A213 T12, A182 F12 and A217 WC6.
BÖHLER DCMS-IG is used in the manufacture and repair of steam boilers, pressure vessels, high-temperature piping, heat exchangers, power plants and technological distribution systems. It is also suitable for welding components in the petrochemical and chemical industries, where resistance to long-term thermal and mechanical stress is required.
The welding wire has a uniform copper surface layer with low overall copper content, which supports reliable electrical contact and smooth feeding. It is characterised by a stable welding process, good wetting of the weld edges, and high-quality weld joint formation.
Welding is carried out using the MAG (135) process with Ar/CO2 (M21) or 100% CO2 (C1) shielding gas according to EN ISO 14175. Direct current with positive wire polarity DC+ is used. The mechanical properties of the weld metal depend on the shielding gas used and the subsequent heat treatment.
When welding heat-resistant CrMo steels, it is essential to observe the required preheating, interpass temperature and post-weld heat treatment. The manufacturer specifies a guideline preheat of 200–300 °C, depending on the base material and wall thickness. Standard post-weld heat treatment is performed at temperatures of 600–700 °C. The specific regime must comply with the approved welding procedure specification (WPS).
The 1.2 mm diameter is suitable for productive MAG welding of medium-thick and thicker parts made of heat-resistant steels. Compared to a 1.0 mm diameter, it allows for a higher deposition rate with appropriate settings. The wire is supplied on an 18 kg spool for professional and industrial welding equipment.
Main advantages:
- Professional heat-resistant welding wire BÖHLER DCMS-IG
- Classification EN ISO 21952-A G CrMo1Si
- Classification AWS A5.28 ER80S-B2Si
- Designed for MAG welding of heat-resistant CrMo steels
- Alloying of approximately 1.2% Cr and 0.5% Mo
- Good strength and toughness properties of the weld metal
- Creep resistance at elevated temperatures
- Application at design temperatures up to 570 °C
- Suitable for steels 13CrMo4-5 and 15CrMo5
- Applicable to ASTM A335 P11 and P12 materials
- Suitable for welding selected heat-resistant steel castings
- Good feeding properties and stable welding process
- Uniform copper-coated surface with low copper content
- Suitable for the manufacture and repair of steam boilers
- Application for pressure vessels and high-temperature piping
- Application in the power and petrochemical industries
- Shielding gas Ar/CO2 or CO2
- Direct current welding DC+
- Recommended preheating 200–300 °C depending on the material
- Diameter 1.2 mm for productive MAG welding
- Industrial packaging 18 kg on spool
Classification:
| Standard / Designation | Classification |
|---|---|
| EN ISO 21952-A | G CrMo1Si |
| AWS A5.28 / SFA-5.28 | ER80S-B2Si |
| Older AWS designation | ER80S-G / ER80S-B2 (mod.) |
| Trade name | BÖHLER DCMS-IG |
| Material group | CrMo1 – low-alloy heat-resistant steel |
| Filler material type | Solid low-alloy welding wire |
| Welding process | MAG (135) |
| Shielding gas | C1 / M21 |
| Polarity | DC+ |
Chemical composition:
| Chemical element | Typical content (%) |
|---|---|
| Carbon (C) | 0,11 |
| Silicon (Si) | 0,60 |
| Manganese (Mn) | 1,00 |
| Chromium (Cr) | 1,20 |
| Molybdenum (Mo) | 0,50 |
| Iron (Fe) | Balance |
Typical chemical composition according to the BÖHLER DCMS-IG technical data sheet (08/2023). This is not a chemical analysis of a specific production batch.
Mechanical properties:
| Mechanical property | Ar + 18 % CO2 (M21) | 100 % CO2 (C1) |
|---|---|---|
| Yield strength Rp0.2 | 440 MPa (min. 355 MPa) | 420 MPa (min. 355 MPa) |
| Tensile strength Rm | 570 MPa (min. 550 MPa) | 550 MPa (min. 510 MPa) |
| Elongation A5 | 23 % (min. 20 %) | 24 % (min. 20 %) |
| Impact energy KV (+20 °C) | 150 J (min. 47 J) | 110 J (min. 47 J) |
| Impact energy KV (-10 °C) | 100 J (min. 47 J) | 55 J (min. 47 J) |
| Heat treatment | 680 °C / 2 hours | 680 °C / 5 hours |
Typical and minimum mechanical properties of the pure weld metal according to BÖHLER DCMS-IG (08/2023). Results are given after heat treatment at 680 °C and depend on the shielding gas used. They do not constitute a material certificate for a specific delivery.
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MIG wire BOHLER DCMS-IG 1.0mm /18kg (CrMo1) (27853)
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