2Cr25N

HuaNickel 2Cr25N is a high chromium ferrite heat-resistant alloy with excellent resistance to oxidation, vulcanization, and other forms of hot corrosion. This grade is most commonly used between 1500-2100°F, although it has a fairly low intensity at high temperatures. 2Cr25Nis the only heat-resistant alloy that can withstand molten copper and brass. Like other high chromium ferritic stainless steels, in the temperature range of 700-1000°F (embrittlement at 885°F). 2Cr25Nshould not be used within this temperature range unless an almost complete loss of room temperature ductility can be tolerated. Sigma embrittlement occurs with prolonged exposure in the range of 1000-1300°F. HuaNickel  2Cr25Nhas a high toughness to brittle impact transition temperature. Therefore, successful forming and bending is contributing to low forming speeds, edge preparation and preheating to 250-400°F. Annealing, if necessary, should be performed at 1550-1650°F, followed by rapid cooling.

2Cr25NChemical composition：

	Cr	C	N	Mn	Si	P	S	Fe
Min	23	–	–	–	–	–	–	Bal
Max	27	0.15	0.25	1.5	1	0.04	0.03

2Cr25NPhysical properties：

Density	0.270 lb/in³
Melting point	2640 – 2710°F

2Cr25NMechanical properties：

Temperature, °F	70	1000	1100	1200	1300	1400
Ultimate tensile strength, ksi	68	52.7	27.7	15	10.5	5
0.2% yield strength, ksi	50	42.3	23	12	9	4
Elongation, %	30	27	65	90	113	128
Hardness, Brinell	83-93	–	–	–	–	–

2Cr25NStainless steel characteristics：

Oxidation resistance through 2000°F

Sulfur resistance

Good thermal conductivity

Resistant to molten copper and low strength

2Cr25N Uses of stainless steel：

Neutral salt tank electrode

A spout for transporting molten copper alloys

Oil burner parts

combustion chamber, etc

2Cr25NProcess performance：

Welding process: Welding can be done using traditional methods. It is helpful to warm up and adjust to 300-600°F. Austenitic weld fillers, such as HuaNickel  AWS E310 or E312, are generally recommended to maximize the ductility of weld deposits.

Relevant standards：

ASTM: A 276, A 240