SF-M308/ER308

SF-M308													Classifications: YB/T5092 H06Cr21Ni10 AWS A5.9 ER308 AWS A5.9M ER308 ENISO14343-A: N/A ENISO14343-B:SS308
Submerged arc wire for Stainless Steel
Austenitic Alloy
Application:
Suitable for welding petrochemistry, pressure vessel, food machinery and medical machinery.
Characteristics:
For welding 18%Cr-8%Ni stainless steel(SUS304), excellent weldability and great crack resistance.
Polarity:
DC+
Welding Position:
Typical Chemical Composition of Weld Metal:
Alloy wt%			C		Mn		Si		Cr		Ni		Mo		P		S		Cu
YB/T			0.08		1.0-2.5		0.65		19.5-22.0		9.0-11.0		0.75		0.03		0.030		0.75
AWS			0.08		1.0-2.5		0.65		19.5-22.0		9.0-11.0		0.75		0.03		0.030		0.75
SF-M308			0.032		1.81		0.54		19.87		9.74		0.01		0.015		0.004		0.047
Deposited metal			0.034		1.47		0.61		20.31		9.68		0.007		0.022		0.006		0.041
Typical Mechanical Properties of Weld Metal:
Mechanica properties				Y.S.(MPa)			T.S.(MPa)				EI(%)			CVN(J/℃)			Intergranular corrosion
YB/T				-			-				-			-			-
AWS				-			-				-			-			-
EXP				-			630				40			31/-196			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℃.