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DIFFUSALOY 818

‘Low Hydrogen Electrode’ Lo-Temp alloy designed to weld low alloyed Cr-Mo steel.

PRODUCT DESCRIPTION:

• Basic-coated low hydrogen electrode
• Designed for Cr-Mo and case-hardened steels
• High strength, embrittlement resistant
• Easy slag detachability / removal, Smooth arc

Applications

STANDARD:

ASME SEC-II-C
AWS SFA 5.5, E8018 B2

ALLOYING ELEMENTS:

C, Si, Mn, Cr, Mo

TENSILE STRENGTH:

56 Kgf/mm2 (min)

ELONGATION:

20% (Min)

PACKAGE SIZES:

5 KG, 20 KG

TIP COLOR

ORANGE

COATING COLOR

LIGHT GREY

 

Size Welding Amperage
3.15 mm 100-140 A
4.00 mm 130-170 A
5.00 mm 160-200 A

Product Specification

• Joining or build up on Cr-Mo steels with working temperature up to 550°C
• Unique resistance to hydrogen induced embrittlement
• Designed for all positional welding
• Suitable for all positions

• Low Cr. Mo. alloy
• Low Hydrogen base alloy
• Low hydrogen flux

• Clean and grind joint area
• Use short or contact arc
• Preheat only if heavy section
• Remove all cracks before welding

• Cr-Mo pipe welding
• Pressure vessel fabrication
• Alloyed case-hardened steel applications
• Tempered steel fabrication