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Alloy 2205

Alloy 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

+ Alloy 2205 Features

+ Applications of Alloy 2205

+ Forms of Alloy 2205 Available

+ Chemical Specification of Alloy 2205

+ Physical Properties of Alloy 2205

+ Basic Properties of Alloy 2205 - Mechanical Properties

+ Machining Advice of Alloy 2205 - Hot worked and precipitation hardened alloy

+ KEY Features of Alloy 2205

+ Alloy Comparisons

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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

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

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

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