Description:
The Lincoln Electric LE B-248 H4R is a low-hydrogen stick welding electrode classified to AWS A5.1 E7018-1 H4R, designed for SMAW/MMA welding on carbon and suitable low-alloy steels. Its moisture-resistant H4R basic coating delivers a diffusible hydrogen level of no more than 4ml per 100g of deposited weld metal, making it well suited to structurally demanding applications. Available in 2.5mm, 3.25mm and 4.0mm diameters at a standard 350mm length, it is a reliable choice for structural fabrication, heavy steel components and rigidly restrained structures.
Key Features:
- Basic-coated stick electrode for SMAW/MMA welding on carbon and suitable low-alloy steels
- H4R moisture-resistant classification with diffusible hydrogen not exceeding 4ml per 100g of deposited weld metal
- High resistance to weld-metal cracking, suitable for rigidly restrained steel structures
- Runs on DC Electrode Positive (DC+) current
- Metal recovery of approximately 125%
- Suitable for all standard welding positions (E7018-1 classification)
Specifications:
- AWS Classification: AWS A5.1 E7018-1 H4R
- EN ISO Classification: EN ISO 2560-A
- Welding Process: SMAW / MMA / Manual Metal Arc Welding
- Coating Type: Basic, Moisture Resistant
- Hydrogen Classification: H4R
- Compatible Materials: Carbon and Suitable Low-Alloy Steels
- Welding Current: DC Electrode Positive / DC+
- Available Diameters: 2.5mm, 3.25mm, 4.0mm
- Electrode Length: 350mm
- Metal Recovery: Approximately 125%
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