EL KADESIA E 308H-15

AWS A5.4: E308H-15

EN 10204 Type 3.1

Description

high-alloyed, basic-coated stainless steel welding electrode for high-temperature applications (up to 700°C) on austenitic steels like AISI 304H, offering good resistance to scaling and sigma-phase embrittlement due to its controlled ferrite content (3-8 FN). It provides excellent weldability, even in all positions (except vertical-down), ensuring high-quality, durable welds for petrochemical and chemical plant fabrication.

Description

Typical Composition of all-weld Metal

	C	Si	Mn	P	S	Ni	Cr	Mo	Cu
Wt. %	0.05	0.50	1.1	0.01	0.01	10.1	19.2	0.02	0.02
Typical according to ASME II part C /SFA 5.4	0.04-0.08	1.0 max	0.5-2.5	0.04 max	0.03 max	9-11	18-21	0.75 max	0.75 max

Mechanical Test of weld Metal

	Yield Strength N/mm2	Tensile Strength N/mm2	Elongation% L0=5d0	Impact Strength “Joule” -196 º C	Ferrite Number
Typical	470	620	38	54	6
Typical According to ASME II part C/SFA 5.4	N.S	≥ 550	≥ 30

Operating Data

Re – drying: if necessary: 300 – 350 ºC, min. 2 h.

mm	2.5mm	3.25 mm	4.0mm	5.0mm
L mm	350	350	350	350
Amps A	50-80	80-110	110-140	140-180

Welding Positions

All, except vertical down

Polarity

DC (+)