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Fermonic 50 / XM-19

Fermonic 50 / XM-19

Fermonic® 50 Annealed (XM19) is a nitrogen-strengthened stainless steel that provides very good resistance to corrosion.

An excellent combination of strength, ductility and toughness even at cryogenic temperatures combine to make Fermonic 50 / XM-19 a useful alloy in a wide variety of applications including pumps and fittings for chemical equipment, fasteners, cables, Boat fittings and Down Hole Tooling.

Fermonic 50 / XM-19 offers higher strength and improved corrosion, abrasion and erosion resistance to other austenitic alloys such as 316L and 317L.

Listed in NACE MR 01 75, XM-19 can be used in a wide variety of applications.

Alloy	Common Name	Related Specifications			Tensile Strength	Proof Stress	Elongation
Alloy	Common Name	British	European	United States	Tensile Strength	Proof Stress	Elongation
FERMONIC 50 Annealed	NITRONIC 50 Annealed		1.3964	ASTM A479/A182 S20910 XM-19	690 [100]	415 [60]	35

FERMONIC 50 Annealed Technical Information

FERMONIC 50 (Annealed Grade) Bar stock sizes available
Diameter (in)	Diameter (mm)	kg per m
1	25.40	3.95
1 1/4	31.75	6.18
1 1/2	38.10	8.89
1 3/4	44.45	12.10
2	50.80	15.81
2 1/4	57.15	20.01
2 1/2	63.50	24.70
2 3/4	69.85	29.89
3	76.20	35.57
3 1/2	88.90	48.42
4	101.60	63.24
4 1/2	114.30	80.03
5	127.00	98.81
5 1/2	139.70	119.56
6	152.40	142.28
8	203.20	252.95
10	254.00	395.23

Specifications of Fermonic 50 Annealed

ASTM A479, S20910-XM-19 A
ASTM A276 -s20910 XM-19 A
ASTM A182 F-XM-19

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Purchase Specifications >
FERMONIC 50 Bar and Forgings Purchase Specification

Chemical Specification of Fermonic 50 Annealed

Basic Properties Fermonic 50 Annealed- Mechanical Properties

Physical Properties of Ferminic 50 Annealed

Applications of Fermonic 50 Annealed

Fermonic 50 Annealed Features

Forms of Fermonic 50 Annealed Available

Machining Advice of Fermonic 50 Annealed -

Alloy Comparisons

KEY Features of Fermonic 50 Annealed

Disclaimer
Data in this Fermonic 50 Annealed 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

FERMONIC^® is a registered Trade Mark of Langley Alloys Ltd; NITRONIC^® is a registered Trade Mark of AK Steel.

Elements	C	Cr	Fe	Mo	Mn	N	Ni	Nb	P	S	Si	V
Minimum		20.5	REMAINDER	1.5	4.0	0.2	11.5	0.1				0.1
Maximum	0.06	23.5	6.00	3.0	6.0	0.4	13.5	0.3	0.45	0.3	1.0	0.3

0.2% Proof Stress (N/mm² )[ksi] minimum	415 [60.2]
Ultimate Tensile Strength (N/mm²) [ksi] minimum	725 [105.1]
Elongation (%) minimum	35
Hardness (HBN)	270max

Density (Kg.m^-3)	7880
Magnetic Permeability	<1.01
Young�s Modulus (N/mm²)	197x 10³
Specific Heat 20�C (J.Kg-1.�K-1)	475
Electrical resistance, 20�C (�.O.m)	0.82
Thermal conductivity, 20�C (W.m^-1.�K^-1)	13.3
Mean coefficient of thermal expansion, 20-100�C (�K-1)	17.9 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	250 rpm	0.125(0.005)
Drilling 25.4mm(1") dia	150 rpm	0.28(0.011)
Turning - Roughing	27 - 42 ( 90 - 140 )	0.2-0.38 (0.008-0.015)	3 (0.125)
Turning - Finishing	35 - 60 ( 120 - 190 )	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	S20910	S32205	718 (Aged)	S31254	FERRALIUM 255-SD50
(0.2% Proof Strength, N/mm²)	420	510	827	325	610
Corrosion Rate (mm.y-1)Seawater	<0.01	<0.01	<0.18	<0.01	<0.01
Corrosion Rate (mm.y-1)10% sulphuric acid at 80�C	0.7	0.4	0.15	1.5	<0.15
Corrosion Rate (mm.y-1) Boiling 50% nitric acid	0.18	<0.15	0.15	<0.4	<0.15
Wear Properties related to Hardness (HRC)	RC27	RC25	RC38	RC20	RC27

Additional Testing
Magnetic Permeability	<1.05