Arc Welding Service

CATEGORY

TYPE

High basic low hydrogen electrode for high strength steels.

APPLICATIONS

Recommended for welding high yield strength steel (>600N/mm2) in case high impact values are required at sub zero temperatures. The ideal electrode for welding MUD pipes in offshore. (Meets NACE requirements) Pipeline according API standard ranging from X65 upto X80.

PROPERTIES

Basic electrode with excellent welding characteristics, Hydrogen content (HD < 3 ml/100 g). Meets NACE requirements MR0175/ISO15156-2.

CLASSIFICATION

AWS

A 5.5: E 10018-D2

CSA W48 E 6918-D2

EN ISO

18275-A: E 62 4 MnMo B 42 H5

DIN

8529: EY 62 75 Mn1 MoB

SUITABLE FOR

Designed for welding steels with yield strength >600N/mm2 in offshore as S550QL1, OPTIM 500ML, API: X70, X80, PAS 65 us, PAS 70 us, Dilimax 500, Dilimax 550, AISI 4130, 4140, 8630 and ASTM grades A182 Grade F22.

APPROVALS

DNV (4Y62), CE approved

WELDING POSITIONS:

ANALYSIS OF THE PURE WELD DEPOSIT

C	Mn	Si	P	S	Mo
0.09	1.90	0.50	0.025	0.020	0.40

MECHANICAL PROPERTIES

Heat treatment	RP0,2	Rm	A5	Impact energy (J) ISO-V			Hardness
	(N/mm2)	(N/mm2)	(%)	-20C	-40°C	-60C	HRc / HV
AW	>620	690-890	>19		>70
SR 620C / 1hr	630-720	730-790	22-25		>55
SR 630C / 12hr	550-590	640-690	24-25		>47

AW: as welded / SR: stress relieved

REDRYING TEMPERATURE

350°C / 2hr

WELDING PARAMETERS / PACKING

Welding Parameters			Packing
D (mm)	Length (mm)	Current (A)	kg / vacuum pack	pcs / vacuum pack	kg / master carton
2.5	300	65-90	0,8	33	7,5
3.2	350	110-130	0,7	18	7,0
4.0	350	140-190	0,8	14	8,0

NOTE

Equivalent to welding wire ER 80S-D2