Flanges Manufacturing

Blind Flange

Lapped Joint Flange

Long Welding Neck Flange

Orifice Flange

Plate Flange

Ring Type Joint Flange

Socket weld Flange

Spectacle Blind Flange

Threaded Flange

Tongue & Groove Flange

Weld Neck Flange

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Flanges Manufacturing

Robust special metals has developed one of the most efficient Quality management system in today’s flange industry. Our Quality team consists of a Quality Director, Metallurgist, Quality Assurance Technicians, Quality Control Inspectors, Nondestructive Testing inspectors, and final Inspectors, who work day in and day out to ensure the integrity and quality of our products. Our manufacturing processes are designed around the operational excellence of our people, pragmatic systems and preventative and continual improvement.

Quality Management system complies with the following standards:

ISO 9001:2015 Standard
PED 2014/68/EU, Annex I, Section 4.3
NCA3800/4200 ASME SECTION-III (Nuclear)
NQA-1 (Nuclear)
CSA N285.0 (Canadian Nuclear)
CSA B51 (Canadian Non-Nuclear)
MIL-I-45208A (Military Standard)
10CFR50 APP-B (Code for Federal Regulation – Nuclear)
10CFR21 (NRC Regulation)
DFARS regulatory and statutory requirements

Quality Control Inspections

MANUFACTURING CAPABILITY INCLUDES:

Modern CNC machines
State-of-the-art Machining centres
Saws
Presses
Borers
Manual lathes
Radial and other drills

Testing

Mechanical Testing

Tensile Testing
Hardness Testing
Impact Testing

Corrosion Testing

Intergranular Attack in Austenitic Stainless Steels per ASTM A262 – Practice A, B, C, E, F
Intergranular Corrosion in Nickel-Rich, Chromium Alloys per ASTM G28 Method A
Pitting and Crevice Corrosion Resistance of Stainless Steels in Ferric Chloride Solution per ASTM G48 Method A, B, D
Detrimental Intermetallic Phase in Duplex Stainless Steels per ASTM A923 Method A, C

Metallography Analysis

Microstructure Examination
Macrostructure Examination
Grain Size Determination
Volume Fraction Point Count

Chemistry Analysis

Optical Emission Spectroscopy (OES)
Combustion (LECO) Analysis for Carbon, Sulfur, Nitrogen, Oxygen, and Hydrogen
X-Ray Fluorescence (XRF) for Positive Material Identification (PMI)

Non-Destructive Testing

Ultrasonic Testing
Liquid Penetrant Testing
Magnetic Particle Testing

Dimensions are in inches

Weld Neck Flange

Threaded Flange

Slip On Flange

Lap Joint Flange

Socket Weld Flange

Blind Flange

Nom. Pipe Size	O	T	T_J	R	X	#/Dia of Holes^a	Bolt Circle Dia	B	B₂^b	B₃	H	L	L₂	L₃^c	r	D	Thr
½	3.50	0.38	0.44	1.38	1.19	4-0.62	2.38	0.88	0.62	0.90	0.84	0.56	1.81	0.62	0.12	0.38	0.62
¾	3.88	0.44	0.50	1.69	1.50	4-0.62	2.75	1.09	0.82	1.11	1.05	0.56	2.00	0.62	0.12	0.44	0.62
1	4.25	0.50	0.56	2.00	1.94	4-0.62	3.12	1.36	1.05	1.38	1.32	0.62	2.12	0.69	0.12	0.50	0.69
1¼	4.62	0.56	0.62	2.50	2.31	4-0.62	3.50	1.70	1.38	1.72	1.66	0.75	2.19	0.81	0.19	0.56	0.81
1½	5.00	0.62	0.69	2.88	2.56	4-0.62	3.88	1.95	1.61	1.97	1.90	0.81	2.38	0.88	0.25	0.62	0.88
2	6.00	0.69	0.75	3.62	3.06	4-0.75	4.75	2.44	2.07	2.46	2.38	0.94	2.44	1.00	0.31	0.69	1.00
2½	7.00	0.81	0.88	4.12	3.56	4-0.75	5.50	2.94	2.47	2.97	2.88	1.06	2.69	1.12	0.31	0.75	1.12
3	7.50	0.88	0.94	5.00	4.25	4-0.75	6.00	3.57	3.07	3.60	3.50	1.12	2.69	1.19	0.38	0.81	1.19
3½	8.50	0.88	0.94	5.50	4.81	8-0.75	7.00	4.07	3.55	4.10	4.00	1.19	2.75	1.25	0.38	0.88	1.25
4	9.00	0.88	0.94	6.19	5.31	8-0.75	7.50	4.57	4.03	4.60	4.50	1.25	2.94	1.31	0.44	0.94	1.31
5	10.00	0.88	0.94	7.31	6.44	8-0.88	8.50	5.66	5.05	5.69	5.56	1.38	3.44	1.44	0.44	0.94	1.44
6	11.00	0.94	1.00	8.50	7.56	8-0.88	9.50	6.72	6.07	6.75	6.63	1.50	3.44	1.56	0.50	1.06	1.56
8	13.50	1.06	1.12	10.62	9.69	8-0.88	11.75	8.72	7.98	8.75	8.63	1.69	3.94	1.75	0.50	1.25	1.75
10	16.00	1.12	1.19	12.75	12.00	12-1.00	14.25	10.88	10.02	10.92	10.75	1.88	3.94	1.94	0.50	1.31	1.94
12	19.00	1.19	1.25	15.00	14.38	12-1.00	17.00	12.88	12.00	12.92	12.75	2.12	4.44	2.19	0.50	1.56	2.19
14	21.00	1.31	1.38	16.25	15.75	12-1.12	18.75	14.14	13.25	14.18	14.00	2.19	4.94	3.12	0.50	1.63	2.25
16	23.50	1.38	1.44	18.50	18.00	16-1.12	21.25	16.16	15.25	16.19	16.00	2.44	4.94	3.44	0.50	1.75	2.50
18	25.00	1.50	1.56	21.00	19.88	16-1.25	22.75	18.18	17.25	18.20	18.00	2.62	5.44	3.81	0.50	1.94	2.69
20	27.50	1.62	1.69	23.00	22.00	20-1.25	25.00	20.20	19.25	20.25	20.00	2.81	5.62	4.06	0.50	2.13	2.88
22	29.50	1.75	1.81	25.25	24.25	20-1.38	27.25	22.22	21.25	22.25	22.00	3.07	5.82	4.25	0.50	2.38	3.13
24	32.00	1.81	1.88	27.25	26.12	20-1.38	29.50	24.25	23.25	24.25	24.00	3.19	5.94	4.38	0.50	2.50	3.25

Material Availability

These include:

Stainless Steel
Duplex Steel
Super Duplex Steel
Titanium
Tantalum
Nickel Alloy
Hastelloy
Inconel
Monel
Nitronic
Invar
Copper Nickel