SF-M2594/ER2594

SF-M2594													Classifications: YB/T5092 H022Cr25Ni9Mo4N AWS A5.9 ER2594 AWS A5.9M ER2594 EN ISO 14343-A:S 25 9 4 N L ENISO 14343-B:SS2209
Submerged arc wire for Stainless Steel
Austenitic Type Ferritic Duplex Type
Application:
Suitable for offshore engineering industry and mainly welding on super duplex stainless steel, such as UNS S32750, UNS J93380.
Characteristics:
For 25%Cr-9%Ni-3.5%Mo-0.25%N duplex stainless steel, excellent corrosion resistance.
Polarity:
DC+
Welding Position:
Typical Chemical Composition of Weld Metal:
Alloy wt%			C		Mn		Si		Cr		Ni		Mo		P		S		N
YB/T			0.03		2.5		1.0		24.0-27.0		8.0-10.5		2.5-4.5		0.03		0.02		0.2-0.3
AWS			0.03		2.5		1.0		24.0-27.0		8.0-10.5		2.5-4.5		0.03		0.02		0.2-0.3
SF-M2594			0.025		0.65		0.43		25.2		9.7		3.6		0.017		0.003		0.24
Deposited metal			0.020		0.71		0.72		24.5		8.6		3.8		0.014		0.005		0.10
Typical Mechanical Properties of Weld Metal:
Mechanica properties				Y.S.(MPa)			T.S.(MPa)				EI(%)			CVN(J/℃)			Intergranular corrosion
YB/T				-			-				-			-			-
AWS				-			-				-			-			-
EXP				-			860				30			50/-40			ASTM 923C Method 1.94mmd
Sizes Available and Recommended Parameters:
Dia/mm						2.4					3.2					4.0
Volt						28-32					28-32					28-32
Amp						270-360					400-550					500-650
Speed(mm/min)						250-320					300-420					400-480
Stick-Out(mm)						20-24					22-26					30-34
Notes on usage:
1.Flux is baked at 300-350℃ for 1~2hr before using; the surface of base metal is dry and without oil and rust before welding; 2.Remove rust, oil and water on base metal before welding; 3.When welding root pass on thick plate, adopting low voltage and ampere, welding slowly and welding through multipass is recommended. Preheating & interpass temperature 16-100℃.