MIG-2594/ER2594

MIG-2594																	Classifications: YB/T5092 H022Cr25Ni9Mo4N AWS A5.9 ER2594 AWS A5.9M ER2594 EN ISO14343-A:G 25 9 4 N LENISO14343-B:SS2594 EN ISO14343-B:SS2594
MIG Wire for Stainless Steel
(Austenitic-Ferritic Duplex Alloy)
Application:
For joining 25Cr type austenitic-ferritic duplex stainless steel alloys, such as SUS2507 used in petrochemical industry, marine engineering, etc.
Characteristics:
1. Weld deposits have an austenitic-ferritic (duplex) matrix with ferrite content as high as 40%. With pitting resistance equivalent(PRE) ≥40, the weld deposits have excellent corrosion resistance especially to pitting, crevice and stress corrosion cracking; 2. Excellent wire feedability, stable arc, less spattering, good bead appearance.
Polarity:
DC+
Welding Position:
Typical Chemical Composition of Weld Metal:
Alloy wt%			C		Mn		Si		Cr		Ni		Mo		N		P		S		Cu
YB/T			0.03		2.5		1.0		24.0-27.0		8.0-10.5		2.5-4.5		0.2-0.3		0.03		0.02		1.5
AWS			0.03		2.5		1.0		24.0-27.0		8.0-10.5		2.5-4.5		0.2-0.3		0.03		0.02		1.5
EXP			0.021		0.64		0.42		24.56		9.37		3.64		0.26		0.022		0.007		0.04
Typical Mechanical Properties of Weld Metal:
Mechanica properties				Y.S.(MPa)			T.S.(MPa)				EI(%)			CVN(J/℃)					FN
YB/T				-			-				-			-					-
AWS				-			-				-			-					-
EXP				-			820				27			-					46
Sizes Available and Recommended Parameters:
Dia/mm						0.8					1.0							1.2
Current Amp			E.H			70-150					100-200							140-220
			OH.V			50-120					80-150							120-180
Notes on usage:
1. Shielding gas: 98% Ar + 2% O₂; 2.Shielding gas flow rate: 20-25 l/min; 3.Wire stick-out: 15-25 mm; 4. Interpass temperature: ≤150℃; 5. Prior to welding, base metal surfaces should be cleaned of grease, oil and corrosion contamination; 6. Take proper protection against wind to prevent blowholes when welding outdoors.