A combination of high strength, low thermal expansion and high stress resistance make 2205 stainless steel useful in a variety of applications that include heat exchangers, pipe, pressure vessels, tanks, fans, pulp and paper production equipment, oilfield equipment and press rolls.

	In Percentage (%)
Carbon	0.02
Chromium	22.0
Nickel	6.0
Molybdenum	3.1
Nitrogen	0.17
Iron	Balance

Typical Room Temperature Mechanical Properties

UTS ksi (MPa)	0.2% YS ksi (MPa)	Elongation %in 2" (50.8 mm)	Hardness Rockwell
109 (750)	74 (510)	35	22

ODIL NITRONIC® 19D is a stainless steel with a mixed ferrite and austenite structure. This alloy provides high yield strength (65 ksi minimum {448 MPa}), good drawing and welding characteristics, excellent chloride stress corrosion cracking resistance, and high cyclic oxidation resistance up to 1800°F (982°C). It also exhibits high ductility (super plasticity) at high temperatures (1800°F {982°C}). Compared to similar duplex stainless alloys such as 2205, NITRONIC 19D Stainless Steel is more economical but less corrosion resistant due to lower alloy content (particularly molybdenum). Inclusion in ASTM A 240 has been granted and the alloy is listed in the A 240-97a publication dated March 1998.ls.

Composition	Typical %	ASTM A 240 %
Carbon	0.02	0.030 max.
Manganese	5.00	4.0 – 6.0
Silicon	0.40	1.00 max.
Chromium	20.00	19.5 – 21.5
Nickel	1.60	1.0 – 3.0
Copper	0.30	1.00 max.
Nitrogen	0.13	0.05 – 0.17
Iron	Balance	Balance

Use
19D Stainless Steel is also being used for production of annealed tubing for oilfield applications. Automotive exhaust tubing applications are currently being evaluated.

Typical Room Temperature Mechanical Properties*

Gauge Range	0.028" – 0.084" (0.71 – 2.13 mm)
UTS, ksi (MPa)	100 – 111 (689 – 993)
0.2% YS, ksi (MPa)	69 – 78 (476 – 538)
Elongation, % in 2" (50.8 mm)	31 – 40
Hardness, Rockwell	B93 – B98
Olsen Cup Height	0.330" – 0.450" (8.38 – 11.43 mm)
‘n’ Value**	0.19