ER2209 ER2553 ER2594

Standard: AWS A 5.9

 

ER 2209 is designed to weld duplex stainless steels such as 2205 (UNS Number N31803).  High tensile strength and improved resistance to stress corrosion cracking and pitting characterize the welds of this wire.  This wire is lower in ferrite compared to that of base metal in order to obtain improved weldability.

ER 2553 is used primarily to weld duplex stainless steels which contain approximately 25% chromium. It has a ‘duplex’ microstructure consisting of an austenite-ferrite matrix. This duplex alloy is characterized by high tensile strength, resistance to stress corrosion cracking and improved resistance to pitting.

ER 2594 is a superduplex welding wire.  The Pitting Resistance Equivalent Number (PREN) is at least 40, thereby allowing the weld metal to be called a superduplex stainless steel.  This welding wire provides matching chemistry and mechanical property characteristics to wrought superduplex alloys such as 2507 and Zeron 100 as well as superduplex casting alloys (ASTM A890). This welding wire is overalloyed 2-3 percent in Nickel to provide optimum ferrite/austenite ratio in the finished weld.  This structure results in high tensile and yield strength along with superior resistance to SCC and pitting corrosion.

 

 

Wire Type	Wire Size			Packing					Net Weight
MIG Wire	φ0.8~1.6(mm)			D100mm　 D200mm 　D300mm　D270mm					1kg 5kg 12.5kg 15kg 20kg
TIG Wire	φ1.6~5.5(mm)			1 meter/Boxes					5kg 10kg
Core wire	φ1.6~5.5(mm)			Coil or Drum					30kg – 500kg
Grade	Chemical composition of welding wire (%)
	C	Cr	Ni		Mo	Mn	Si	P		S	Cu	N
ER 2209	0.03	21.5–23.5	7.5-9.5		2.5-3.5	0.5–2.0	0.9	0.03		0.03	0.75	0.08-0.2
ER 2553	0.04	24.0–27.0	4.5-6.5		2.9-3.9	1.5	1.0	0.04		0.03	1.5–2.5	0.1-0.25
ER 2594	0.03	24.0-27.0	8.0-10.5		2.5-4.5	2.5	1.0	0.03		0.02	1.5	0.2-0.3

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