AQUAMET® 22

AQUAMET® 22 is a high-alloy austenitic stainless steel that provides superior corrosion resistance along with excellent toughness and high strength. It has higher strength than AQUAMET® 17 in diameters of ¾" through 1¼", and equivalent strength in diameters up to 2". Due to its high alloy content, AQUAMET® 22 resists pitting and crevice corrosion and is ideal for pleasure boats which are operated infrequently, spending much of their time tied up at docks. (AQUAMET® 22 H.S., a higher strength version, is available in 2½" to 6" diameters.)

Mechanical Properties

AQUAMET® 22	Tensile Strength Psi	0.2% Yield Tension psi	Strength Torsion psi	Elongation in 2 in .%	Reduction of Area %
¾" to 1¼"	145,000	130,000	86,600	18	45
Over 1¼" to 2"	135,000	105,000	70,000	20	50
Over 2" to 2½"	120,000	95,000	63,000	20	50
Over 2½" to 3"	115,000	75,000	50,000	25	50
Over 3" to 12"	100,000	55,000	36,600	30	50
AQUAMET® 22 H.S.
2½" to 4-3/4"	130,000	105,000	70,000	15	45
5" to 6"	125.000	90,000	60'000	15	45

Minimum values. Actual test results may be higher.

Chemical Properties

COMPOSITION	19
Carbon	0.06
Manganese	4.00 - 6.00
Silicon	1.00 max
Chromium	20.50 - 23.50
Nickel	11.50 - 13.50
Phosphorus	0.04 max
Sulfur	0.03 max
Columbium + Tantalum	0.10 - 0.30
Nitrogen	0.20 - 0.40
Molybdenum	1.50 - 3.00
Vanadium	0.10 - 0.30
Iron	Balance