Kobelco LB-78VS Stick electrode

Name: Stick electrode
Brand: Kobelco

Kobelco · Model LB-78VS

LB-78VS

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Kobelco Stick electrode

LB-78VS Stick electrode. Suitable for butt welding of pipes Excellent usability in vertical downward welding Good mechanical properties

Official model: LB-78VS

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Individual manufacturer designation and recorded specifications sourced from the official OEM website on 10 October 2026. Supply terms, regional configuration and application suitability are confirmed by quotation. The source does not publish a separate article SKU for this record. OEM photograph unavailable; the image is explicitly labelled model-reference artwork.

Technical information

Features	Suitable for butt welding of pipes Excellent usability in vertical downward welding Good mechanical properties
Classification	AWS A5.1 E7048
Redrying Conditions	350-400°Cx1h
Identification color	1st Orange, 2nd Black
Polarity	AC, DCEP
Packaging data	φ mm \| Length mm \| kg/pack \| kg/carton \| g/piece \| carton mm; 3.2 \| 350 \| 5 \| 20 \| 33 \| 170W, 110H, 380L; 4.0 \| 400 \| 5 \| 20 \| 56 \| 170W, 110H, 430L
Composition (all-weld metal mass %)	\| Typical (AC) \| Guaranty a; C \| 0.06 \| 0.15; Si \| 0.56 \| 0.90; Mn \| 1.18 \| 1.60; P \| 0.012 \| 0.035; S \| 0.005 \| 0.035; Ni \| 0.01 \| 0.30; Cr \| 0.03 \| 0.20; Mo \| 0.01 \| 0.30; V \| <0.01 \| 0.08; Others b \| 1.23 \| 1.75; Note: a Single values are maximium. b Combined Limit for Mn+Ni+Cr+Mo+V
Welding parameters (A)	φ mm \| 1F, 1G, 2G \| 3G uphill, 4G \| 3G downhill; 3.2 \| 80-140 \| 80-120 \| 80-140; 4.0 \| 130-210 \| 110-160 \| 130-210
All-weld mechanical properties	\| Typical (AC) \| Guaranty; 0.2%YS (MPa) \| 490 \| 400min.; TS (MPa) \| 580 \| 483min.; EI on 4d (%) \| 30 \| 22min.; IV -29°C (J) \| 100 \| 27min.