Stainless Steel Flanges

S tainless Steel Flanges are made up of different stainless steel materials. There are different grades to the stainless steel depending on the material composition and the mechanical properties vary.SS Flanges aid in connecting pipes, valves, pumps and other equipment to pipes. Besides acting as a mediator or a connector, the Stainless Steel Header Flanges also provide easy access when they have to be cleaned, inspected or modified. Stainless Steel Exhaust Flanges have been designed to interface sections of pipe whilst enabling their easy assembly and disassembly. Usually Stainless Steel Split Flanges are an external or internal ridge, or rim.

A Stainless Steel Compression Fittings is a kind of versatile coupling which can be used to connect two pipes or a pipe to either a fixture or a valve. The SS Twin Ferrule Compression Fittings consists of three parts. The compression nut along with the compression ring and the compression seat is a part of the Hydraulic Compression Fittings.

Standard Specification Of Flanges

Stainless Steel Flanges Specifications	ASTM A182 / ASME SA182
Size Chart of SS Blind Flanges	1/2″ (15 NB) to 48″ (1200NB)
Standards Of ASTM A182 Stainless Steel Slip on flanges	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure rating of SS WN flanges	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
American Standard of SS Flanges	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Martensitic Stainless Steel Exhaust Flange Size in mm

Stainless Steel Slip On Flange Chemical Structure

Application Of SS Flanges

Features Of SS Fittings 304/316

Types of Stainless Steel Flanges

Stainless Steel 304 Flanges

Stainless Steel 304 Flanges are made up of an austenitic stainless steel that has 18% chromium and 8% nickel in the composition. This composition makes the flanges strong and corrosion resistant for general corrosive services.It is a leading supplier and manufacturer of the SS 304 Flanges in various sizes and shapes. The material is strong with 515MPa minimum tensile strength and 205MPa minimum yield strength. The material is also corrosion resistant to most atmospheric conditions.

ASTM A182 SS Spectacle Blind Flanges Equivalent Material

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 304	1.4301	S30400	SUS 304	304S31	08Х18Н10	Z7CN18‐09	X5CrNi18-10
SS 304L	1.4306 / 1.4307	S30403	SUS 304L	3304S11	03Х18Н11	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11
SS 304H	1.4301	S30409	–	–	–	–	–
SS 310	1.4841	S31000	SUS 310	310S24	20Ch25N20S2	–	X15CrNi25-20
SS 310S	1.4845	S31008	SUS 310S	310S16	20Ch23N18	–	X8CrNi25-21
SS 316	1.4401 / 1.4436	S31600	SUS 316	316S31 / 316S33	–	Z7CND17‐11‐02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L	1.4404 / 1.4435	S31603	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 316Ti	1.4571	S31635	SUS 316Ti	320S31	08Ch17N13M2T	Z6CNDT17‐123	X6CrNiMoTi17-12-2
SS 317	1.4449	S31700	SUS 317	–	–	–	–
SS 317L	1.4438	S31703	SUS 317L	–	–	–	X2CrNiMo18-15-4
SS 321	1.4541	S32100	SUS 321	–	–	–	X6CrNiTi18-10
SS 321H	1.4878	S32109	SUS 321H	–	–	–	X12CrNiTi18-9
SS 347	1.4550	S34700	SUS 347	–	08Ch18N12B	–	X6CrNiNb18-10
SS 410	1.4006	S41000	SUS 410	410S21	–	–	X12Cr13
SS 446	1.4762	S44600	–	–	–	–	–
SS 904L	1.4539	N08904	SUS 904L	904S13	STS 317J5	Z2 NCDU 25-20	X1NiCrMoCu25-20-5

SS Blind Flange Dimensions Standard

Hot rolling primarily involves deforming the slab / bloom at high temperature & roll pressure - The rolling temperatures vary from 900˚C to 1200°C, which is above the recrystallization temperature for most stainless steels.
The material runs through a series of roll with predetermined roll gaps, pressures, and speeds to achieve its finished dimensions while being at high temperatures.
High finishing temperature ensures the production of a uniform rolled product, increases the ability of the material to undergo thickness reductions up to 98%, and at the same time, prevents the possibility of unwanted strain hardening. After hot rolling, the long and thin sheets are spun into coils and left to cool, these are called Hot Rolled coils.

Specifications

Standard	Class	Diameter	Bolt Circle Diameter	Number of Bolts	Bolt Size	Diameter of Bolt Hole
AS4087	PN14	95	67	4	M12	14
AS 2129 Flange	Table C	95	67	4	13	14
	Table D	95	67	4	13	14
	Table E	95	67	4	13	14
	Table F	95	67	4	13	14
	Table H	114	83	4	16	17
	Table J	114	83	4	16	17
ANSI B16.5	ANSI 150	89	60	4	13	16
	ANSI 300	95	67	4	13	16
	ANSI 600	95	67	4	13	16
	ANSI 900	121	83	4	19	22
	ANSI 1500	121	83	4	19	22
ISO 7005 (DIN) Flange	PN6	80	55	4	M10	11
	PN10	95	65	4	M12	14
	PN16	95	65	4	M12	14
	PN20	90	60.5	4	M14	16
	PN25	95	65	4	M12	14
	PN40	95	65	4	M12	14

SS Blind Flange Dimensions Standard

Dimensions:- ANSI/ASME B16.5, B16.28, MSS-SP-43.

Stainless Steel Plate flange Pressure Rating

ASME SA182 SS 316 Weld Neck Flange

The ASME SA182 SS 316 Weld Neck Flange and other types are used especially for the chloride ion corrosion resistance due to the addition of molybdenum in the composition. Therefore these flanges are used in marine, sea water, waste water management, pollution control, food processing, petrochemical and in oil and gas industries. The SS 316 Blind Flanges are another type of flanges used in closing a pipe line. These are useful in lines where frequent maintenance is required. The flanges have similar strength to the 304 flanges. The have 205MPa minimum yield strength and 515MPa minimum tensile strength.

Standard Specification Of A182 F316 Slip On Flange

Flanges Pressure Rating & Flanges Standards

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