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Alloy 2205

Duplex 2205

Alloy	Common Name	Related Specifications			Tensile Strength	Proof Stress	Elongation
Alloy	Common Name	British	European	United States	Tensile Strength	Proof Stress	Elongation
Alloy 2205	2205	1.4462	F60	F51	655 [95]	485 [70]	25

Duplex 2205

Specifications of Alloy 2205

Alloy 2205 to MLA-MPS-22V-BAR
EN 10088-3 1.4462
ASTM A182 UNS S31803 Forgings Grade F51
ASTM A182 UNS S32205 Forgings Grade F60
ASTM A240 UNS S31803 Sheet and Plate
ASTM A479 UNS S31803 Bar
ASTM A479 UNS S32205 Bar
ASTM A276 UNS S31803 Bar
ASTM A76 UNS S32205 Bar

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Alloy 2205 Bar Purchase Specification

Chemical Specification of Alloy 2205

Basic Properties of Alloy 2205 - Mechanical Properties

Physical Properties of Alloy 2205

Applications of Alloy 2205

Alloy 2205 Features

Forms of Alloy 2205 Available

Machining Advice of Alloy 2205 - Hot worked and precipitation hardened

Alloy Comparisons

KEY Features of Alloy 2205

Disclaimer
Data in this Alloy 2205 page is provided solely for the purposes of distribution of information. Langley Alloys cannot make guarantees with respect to subject matter or accuracy of this information. Langley Alloys specifically disclaims all guarantees, expressed, implied or otherwise, including without limitation, all warranties of merchantability and fitness for a particular purpose. This publication may include technical inaccuracies or typographical errors. If errors are found, please make a notification via e-mail to: info@langleyalloys.com

Elements	Cr	Fe	Mo	N	Ni	P	S	Si
Minimum	22.00	REMAINDER	3.00	0.14	4.50			0.20
Maximum	23.00		3.50	0.20	5.50	0.030	0.020	0.70

0.2% Proof Stress (N/mm² ) [ksi] minimum	450 [65.2]
Ultimate Tensile Strength (N/mm²) [ksi] minimum	760 [94.2]
Elongation (%) minimum	25
Hardness (HBN)	270max
Charpy V-notch Impact at ambient Temp (J) [ft.lb]	80min [59min]
Charpy V-notch Impact at -46°C (J) [ft.lb]	45av, 35min [33av, 25.8min]

Additional Testing
ASTM G48A Corrosion test at 40°C	No pitting and weight loss <4.0 g/m2
Ultrasonic Testing	According to ASTM A388
Ferrite Content	35%-55%
Microstructure	Microstructure certified free from grain boundary carbides, sigma, chi and laves phases

Density (Kg.m^-1)	7810
Magnetic Permeability	<50
Young’s Modulus (N/mm²)	190 x 10³
Specific Heat, 20°C (J.Kg^-1.°K^-1)	400
Specific Electrical Resistance, 20°C (µO.m)	0.85
Thermal conductivity, 20°C (W.m^-1.°K^-1)	15
Mean coefficient of thermal expansion, 20-100°C (°K^-1)	11 x 10^-6

Operation	Cutting Speed m/min (ft/min)	Feed Rate mm/rev (in/rev)	Depth of cut mm (in)
Milling	40 (130)	0.05-0.13 mm/tooth 0.02-0.005 in/tooth	0.5-6.0 (0.02-0.25)
Drilling – 6.4mm (1/4”) dia	250rpm	0.075 (0.003)
Drilling – 12.7mm (1/2”) dia	250rpm	0.125 (0.005)
Drilling – 25.4mm (1”) dia	150rpm	0.28 (0.011)
Turning - Roughing	30- 45 (100-150)	0.20 – 0.38 (0.008-0.015)	3 (0.125)
Turning - Finishing	50- 60 (165-200)	0.13 – 0.20 (0.005-0.008)	0.5 (0.02)
Tooling	Milling/Turning: Carbide (SANDVIK GC 235, SECO T25M) Drilling: HSS, point angle 118°, chisel angle 120°

Alloy Comparisons	FERRALIUM 255-SD50	S17400(17-4PH)	S32205	718 (ST)
0.2% Proof Strength (N/mm²), minimum	600	1070	450	550 max
Corrosion Rate (mm.y^-1) Seawater	<0.01	~1	<0.01	<0.01
Corrosion Rate (mm.y^-1) 10% sulphuric acid at 80°C	<0.15	10	0.4	<0.15
Corrosion Rate (mm.y^-1) Boiling 50% nitric acid	<0.15	<0.15	<0.15	<0.15
Wear Properties related to Hardness (HRC)	RC28	RC38	RC25	RC20