Magmaweld · Welding electrodes

EM 178

Classification: E10018-D2 H4R (AWS/ASME SFA - 5.5)

It is a high-efficiency basic electrode developed for welding low-alloy and high-tensile strength steels.

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Price and availability are provided by quotation. Send an enquiry with quantity and variant.

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Product description

It is a high-efficiency basic electrode developed for welding low-alloy and high-tensile strength steels. It is ideal for applications requiring welds with a minimum tensile strength of 690 MPa and is particularly preferred for the repair and fabrication of Cr-Mo and Mn-Mo alloyed steels.Thanks to its low hydrogen content and high metallurgical purity, it ensures crack-free and highly tough joints. It delivers superior performance under demanding conditions such as dynamic loads and impacts at low temperatures down to -51°C.It can be safely used in critical applications such as cold storage facilities, storage tanks, pressure vessels, and piping systems.

Standards and classifications

AWS/ASME SFA - 5.5E10018-D2 H4R
EN ISO 18275 - AE 62 5 MnMo B T 42 H5
TS EN ISO 18275 - AE 62 5 MnMo B T 42 H5

Base materials

ENDIN
S355N - S500NStE 355 - StE 500
P355NH - P500NHWStE 355 - WStE 500
S355NL2 - S500NL1EStE 355 - EStE 500
17MnMoV6-4
15NiCuMoNb5
20MnMoNi4-5

Typical chemical values of weld metal

Type of AnalysisCSiMnCrNiMoVPSCu
Weld Deposit0.090.351.900.100,500.300.010.0100.0100.05

Typical mechanical values of weld metal

Test ConditionYield Strength (N/mm²)Tensile Strength (N/mm²)Elongation A5 (%)Charpy V-Notch Properties (J)
After Heat Treatment(620°C 1 hour)64074023-51°C → 55

Welding positions

PAPBPCPDPEPF

Polarity

DC(+)AC

Welding parameters and efficiency

Diameter x Length (mm)Current (A)
2.50x35060-90
3.25x35090-130
4.00x450130-180
5.00x450190-230
6.00x450260-340

Variants and packaging

Product CodeDiameter X Length (mm)Pieces per Box (~)Weight Of The Box (kg)Boxes Per PackageWeight Of The PackagePackaging Type
12039HRFM22.50x3502175.0315.4Cardboard Box
12039NRFM23.25x3501385.0315.4Cardboard Box
12039SSFM24.00x450926.5319.9Cardboard Box
12039VSFM25.00x450646.5319.9Cardboard Box
12039XSFM26.00x450466.5319.9Cardboard Box

Storage and re-drying

  • It can be dried maximum 5 times.
  • It has to be dried at 350°C for 2 hours.

Documentation

Documents open from the official Magmaweld pages (PDF).

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The enquiry concerns: EM 178

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