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High Strength Grade

FERMONIC^® 50 High Strength Grade

FERMONIC 50 (High Strength 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 3/8	34.93	7.47
1 1/2	38.10	8.89
1 3/8	41.28	10.44
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
3	76.20	35.57
4	101.60	63.24
5	127.00	98.81
5 1/2	139.70	119.56
6	152.40	142.28
6 1/2	165.10	166.99
7	177.80	193.66
8	203.20	252.95

Specifications of FERMONIC 50 High Strength Grade

FERMONIC 50 to MLA-MPS-25VH-BAR/FORG
ASTM A479 Bar S20910 XM-19 Hot finishes
ASTM A276 S20910 XM-19 As rolled

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FERMONIC 50 Bar Purchase Specification

+ FERMONIC 50 High Strength Grade Features

+ Applications of FERMONIC 50 High Strength Grade

+ Forms of FERMONIC 50 High Strength Grade Available

+ Chemical Specification of FERMONIC 50 High Strength Grade

+ Physical Properties of FERMONIC 50 High Strength Grade

+ Basic Properties of FERMONIC 50 High Strength Grade - Mechanical Properties

+ Machining Advice of FERMONIC 50 High Strength Grade - Hot worked and precipitation hardened alloy

+ KEY Features of FERMONIC 50 High Strength Grade

+ Alloy Comparisons

Disclaimer
Data in this FERMONIC 50 High Strength Grade 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	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

Density (Kg.m^-3)	7880
Magnetic Permeability	<1.05
Young’s Modulus (N/mm²)	197x 10³
Specific Heat 20°C (J.Kg-1.°K-1)	475
Electrical resistance, 20°C (µ.O.m)	0.82
Thermal conductivity, 20°C (W.m^-1.°K^-1)	13.3

0.2% Proof Stress (N/mm² )[ksi] minimum	690 [100]
Ultimate Tensile Strength (N/mm²) [ksi] minimum	862 [125]
Elongation (%) minimum	20
Hardness (HBN)	250-326

Additional Testing
Charpy V-notch minimum [RT] (J)	54
Magnetic Permeability	<1.05

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)	710	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)	RC30	RC25	RC38	RC20	RC27

FERMONIC® 50 High Strength Grade

FERMONIC^® 50 High Strength Grade