DUPLEX 2205 Stainless Steel Pipe

2205 is a duplex (austenitic-ferritic) stainless steel containing about 40 – 50% ferrite in the annealed condition. 2205 has been a practical solution to chloride stress corrosion cracking problems experienced with 304/304L or 316/316L stainless. The high chromium, molybdenum and nitrogen contents provide corrosion resistance superior to 316/316L and 317L stainless in most environments. The design strength of 2205 is significantly higher than 316/316L, often permitting lighter wall construction.

Duplex 2205 stainless steel pipe combination of ferrite and austenite is the most beneficial properties, has the very good

resistance to chloride stress corrosion cracking, is made up of 21% chromium, 2.5% nitrogen and 4.5% molybdenum nickel

alloy consisting of duplex stainless steel, it is the yield strength of austenitic stainless steel double, this feature enables

designers when designing products lose weight, make this kind of alloy has the advantages of more than 316,317L. Due to the

high levels of chrome and molybdenum, the ability to resist spot corrosion and uniform corrosion is excellent. The double

phase microstructure ensures that the steel has high tensile strength and high mechanical strength.

CHEMICAL COMPOSITION (%) 

CHEMICAL	PERCENTAGE
IRON (FE)	BALANCE
CHROMIUM (CR) – S31803	21-23%
CHROMIUM (CR) – S32205	22-23%
NICKEL (NI)	4.5-6.5%
MOLYBDENUM (MO) – S31803	2.5-3.5%
MOLYBDENUM (MO) – S32205	3.0-3.5%

Chemical	Percentage
Manganese (Mn)	2% Max
Silicon (Si)	1% Max
Carbon (C)	0.030% Max
Sulfur (S)	0.020% Max
Phosphorus (P)	0.030% Max
Nitrogen (N)	0.08-0.20% Max
–

PHYSICAL PROPERTIES

PROPERTY	MEASUREMENT
DENSITY (LB/IN3)	0.278
ELONGATION (MIN %)	25
MINIMUM YIELD (PSI) – S31803	65,000
MINIMUM YIELD (PSI) – S32205	70,000
MINIMUM TENSILE (PSI) – S31803	90,000
MINIMUM TENSILE (PSI) – S32205	95,000
MAX HARDNESS (HRC)	30

Product Pictures

FAQ:

Q: Are you trading company or manufacturer ?