SF-M309/ER309

SF-M309													Classifications: YB/T5092 H10Cr24Ni13 AWS A5.9 ER309 AWS A5.9M ER309 ENISO14343-A:S(22 12 H) ENISO14343-B:SS309
Submerged arc wire for Stainless Steel
Austenitic Alloy / Dissimilar Steel
Application:
Suitable for welding ofdissimilar material, like carbon steel and stainless steel or martensite stainless steel and ferrite stainless steel; applicable in the industry of petrochemistry, firepower station and etc.
Characteristics:
For 22%Cr-12%Ni stainless steel (SUS309S) or welding of dissimilar materials.
Polarity:
DC+
Welding Position:
Typical Chemical Composition of Weld Metal:
Alloy wt%			C		Mn		Si		Cr		Ni		Mo		P		S		Cu
YB/T			0.12		1.0-2.5		0.65		23.0-25.0		12.0-14.0		0.75		0.03		0.030		0.75
AWS			0.12		1.0-2.5		0.65		23.0-25.0		12.0-14.0		0.75		0.03		0.030		0.75
SF-M309			0.034		2.23		0.53		23.35		12.65		0.02		0.017		0.01		0.014
Deposited metal			0.037		1.74		0.61		22.67		12.43		0.04		0.023		0.005		0.030
Typical Mechanical Properties of Weld Metal:
Mechanica properties				Y.S.(MPa)			T.S.(MPa)				EI(%)			CVN(J/℃)			Intergranular corrosion
YB/T				-			-				-			-			-
AWS				-			-				-			-			-
EXP				-			575				36			60/RT			GB/T 4334E Method Pass
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℃.