Stainless Steel Flanges

Contact Us

Microtech Stainless Steel Co.

105, Ratan Sadan Bldg., Shop No. 16, 5th Kumbharwada Lane, Mumbai, Maharashtra - 400004, India

Mobile : +91-9724783780

Phone : +91-22-23822119

Call Us : 08049672390




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  • Microtech Stainless Steel Co. is specialized in manufacturing and supplying of Stainless Steel Flanges , Pipe Fitting, Forged Fittings, Butt weld fittings, Flanges in Stainless steel, alloy Steel & carbon Steel since 1991, we manufacture wide range of Stainless Steel Flanges such as SS Slip On Flange, SS Welding Neck Flange, SS Blind Flange, SS Socket Weld Flanges, SS Plate Flange, SS Collar Flange, Stainless Steel Threaded Flange etc. as per International standard like ASME/ASTM/API, we are supplying & exporting Stainless Steel Flanges in seamless & welded both forms to more than 60 countries for over 2 decades, we have our dealers & distributors in Saudi Arabia,United Arab Emirates,Oman,Kuwait,Qatar,Sri Lanka, Microtech Stainless Steel Co. is the only company in INDIA which is approved Manufacturer & supplier of Stainless Steel Flanges in 300 top companies worldwide. Few of them are ORPIC, NIORDC, Saudi Aramco, SABIC, PIDMCO, GASCO, KNPC, Indian Oil, BPCL, HPCL, NTPC, BARC & Indian Navy, Microtech Stainless Steel Co. is ISO 9001:2008, ISO 14001, OHSAS 18001 Certified Company since 2010.
  • Microtech Stainless Steel Co. is manufacturing & exporting pipe flange from 1/2” thru 200”, 150 lbs to 3000 lbs including carbon Steel flanges , stainless Steel flanges and alloy Steel flanges according to ANSI , API , MSS , AWWA , DIN , JIS , BS and GB for the world market. We are experienced & specialized in manufacturing special ring flanges and other forgings as per drawing provided by our clients.
  • We supply ASME Code and Non Code Industrial flanges for the Petrochemical, Chemical & Waterworks industries. check our price before buying ANSI, API, AWWA pipe flanges in carbon Steel flanges , stainless Steel flanges , alloy Steel flanges and chrome steel flanges. Weld Neck flanges , flanges Slip on flanges , Blind flanges , Threaded flanges , socket weld flanges , Lap Joint flanges , Orifice Flanges in sizes 1/2" to 198".


Infrastructure : We at Microtech Stainless Steel Co. have 200 sets of equipment, including 20 sets of modern forging equipment, 140 high precision machine tools, floor-type lathes, drills, vertical lathes and other machining equipment, 2 electrical heating furnaces, 5 heat treatment furnaces, 2 PMI detection equipment, tensile machines, impact testers, hardness testers, metallographic analyzers, digital UT flaw detectors, etc. Forging process available in house: ring rolling forging, open die forging

ANSI/ASME Stainless Steel Flanges :

  • ANSI B16.47 Slip on flanges
  • ANSI B16.5 lap joint flanges
  • ANSI B16.47 steel weld neck flanges
  • ANSI B16.47 steel blind flanges, blind cover
  • ANSI B16.5 slip on flanges
  • ANSI B16.5 stainless steel blind flange
  • ANSI B16.5 long weld neck pipe flanges, LWN flange
  • API standard forged stainless steel thread flanges, SCRD flange
  • ANSI B16.5 stainless steel weld neck pipe flanges


EN/PED Stainless Steel Flanges :

  • DIN2573, DIN2576 Stainless steel plate flanges
  • DIN2527 blind flanges
  • DIN2573, DIN2576 plate flange, backing flange,gasket
  • EN1092-1 F304/F304L plate flange
  • DIN2634 steel weld neck flanges
  • DIN2633 weld neck flanges EN1092-1 steel plate backing flanges
  • EN1092-1 TYPE05 blind flanges
  • EN1092-1 TYPE 11B weld neck flanges
  • EN1092-1 type11B PN10 DN400 weld neck flange raised face


BS Stainless Steel Flanges :

  • BS4504 code 105 steel blind flanges
  • BS4504 code 101 steel plate flanges
  • BS4504 code 111 steel weld neck flanges


JIS Stainless Steel Flanges :

  • JIS B2220 socket welding flange
  • JIS B2220 slip on hubbed SOH flange
  • JIS B2220 steel slip on plate SOP flanges
  • JIS B2220 welding neck flanges


Valve components :

  • F316 8 inch valve seat rings for valves
  • Forged F316L semi-finished ball valve seat rings 18 inch
  • F51 forged stainless steel valve seat rings
  • F316/F316L forged stainless steel ball valve seat rings
  • F6A CL2 seat rings
  • F316 forged valve seat rings
  • A350LF2 forged valve seat rings
  • Special forged parts
  • Forged nonstandard stainless steel parts


Plain washer, gasket :

  • Stainless steel disc ring, gasket
  • Stainless steel plate flange,plain washer, gasket
  • F304 steel gasket


Flange Standard :

  • API 6A Flange
  • ANSI Flange
  • ASME Flange
  • DIN Flange
  • EN1092-1 Flange
  • UNI Flange
  • JIS/KS Flange
  • BS4504 Flange
  • GB Flange
  • AWWA C207 Flange
  • GOST Flange
  • PSI Flange


High Quality But Lower Cost Stainless Steel Flanges Manufacturers :

  • Microtech Stainless Steel Co. are Manufacturers, Suppliers and Exporters of Stainless Steel Flanges that is Fabricated From High Quality Raw Materials. SS Flanges are used in an assortment of industrial purposes and are mainly used to connect pipes. Stainless Steel Flanges are available in variables sizes for different applications.All our products are manufactured with high quality raw materials and supplied to our customers with complete guarantee and certifications.
  • An ISO 9001:2008 Certified Company, Microtech Stainless Steel Co. offers a complete range of Stainless Steel Flanges such as SS DIN 1.4438 slip on flanges, ANSI SS 317L weld neck flanegs, SS BS4504 317L orifice flanges, SS JIS 317L blind flanges, ASTM A182 SS 317L Lap-Joint Flange, UNS S31703 317L socket weld flanges and ASME SS EN 317L threaded flanges. These Steel 317L Flanges available in different class/lbs like 150lbs, 300lbs, 400lbs, 600lbs, 900lbs, 1500lbs, 2500lbs. ANSI B16.5 Stainless steel flanges are manufactured in compliance with ASTM A 182 and ANSI B16.5 / 16.47/ MSS SP-44.


ANSI b16.5 Stainless Steel Forged Flanges / ANSI b16.5 SS Forged Flanges :

  • Stainless Steel Weld Neck Forged Flange
  • Stainless Steel Lap Joint Forged Flange
  • Stainless Steel Threaded Forged Flange
  • Stainless Steel Blind Forged Flange
  • Stainless Steel Slip on Forged Flange
  • Stainless Steel Socket Weld Forged Flange


Ready Stock of Stainless Steel AISI, ASME, DIN, BS, EN Flanges & Other Ready Inventory : SS UNS S31703 Orifice Flanges, JIS SUS 317L Weld Neck Flanges Exporter, SS 317L RTJ Flanges Leading Manufacturers,ASTM A182, A240 SS 317L Blind Flanges, SS DIN 1.4449, 1.4438 SORF Flanges, SS 317 RTJ Flanges Manufacturer & Exporter,Stainless Steel 317L Flanges werkstoff nr. / DIN 1.4438, ASTM A182, 240 UNS S31703 Flanges, SS 317L Flanges Manufacturer, SS 317L Flanges Suppliers,SS UNS S31703 SORF Flanges in India, 317L SS EN 1092-1 Flanges, SS DIN 1.4449 Forged Flanges Manufacturers, SS 317L Reducing Flanges,ASTM A182 SS 317 Weld Neck Flanges, SS DIN 1.4438 Blind Flanges Suppliers, Standard Size Steel 317L RTJ Flanges Stockist

Stainless Steel Flanges / SS Flanges Application :

  • Stainless Steel Flanges Used in Textile Machinery
  • Stainless Steel Flanges Used in Dairy and Food Processing
  • Stainless Steel Flanges Used in Instrumentation
  • Stainless Steel Flanges Used in Plumbing
  • Stainless Steel Flanges Used in Construction
  • Stainless Steel Flanges Used in Modern Architecture
  • Stainless Steel Flanges Used in Automobiles
  • Stainless Steel Flanges Used in Heat Exchanger
  • Stainless Steel Flanges Used in Evaporators
  • Stainless Steel Flanges Used in Water Piping Systems
  • Stainless Steel Flanges Used in Surface Condensers
  • Stainless Steel Flanges Used in Digesters
  • Stainless Steel Flanges Used in Fluid Piping
  • Stainless Steel Flanges Used in LP/HP Heaters


Stainless Steel Flanges Application Industries :

  • Stainless Steel Flanges Used In Fertilizers Industry
  • Stainless Steel Flanges Used In Aerospace Industry
  • Stainless Steel Flanges Used In Nuclear Power Plant Industry
  • Stainless Steel Flanges Used In Chemical Industry
  • Stainless Steel Flanges Used In Oil & Gas Industry
  • Stainless Steel Flanges Used In Refineries Industry
  • Stainless Steel Flanges Used In Petrochemical Industry
  • Stainless Steel Flanges Used In Paper Industry


Stainless Steel Flanges / SS Flanges Value Added Services :

  • Stainless Steel Flanges Positive Material Identification - PMI Testing
  • Stainless Steel Flanges Chemical Analysis - Spectro Analysis
  • Stainless Steel Flanges Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Stainless Steel Flanges Micro Test
  • Stainless Steel Flanges Macro Test
  • Stainless Steel Flanges Hardness Test
  • Stainless Steel Flanges Pitting Resistance Test
  • Stainless Steel Flanges Intergranular Corrosion (IGC) Test
  • Stainless Steel Flanges Flaring Test
  • Stainless Steel Flanges Flattening Test
  • Stainless Steel Flanges Hydrostatic Test
  • Stainless Steel Flanges Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Stainless Steel Flanges Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Stainless Steel Flanges Radiography Test
  • Stainless Steel Flanges Dye Penetrant Test (DP Test)
  • Stainless Steel Flanges Ultra Sonic Test (UT)
  • Stainless Steel Flanges Eddy Current Testing
  • Stainless Steel Flanges Impact Test
  • Stainless Steel Flanges Bend Test

Specifications

Standard ANSI, ISO, ASME, DIN, ASTM, AISI
Size 1/2
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Surface Pickling, Annealing, Bright, Sand Blast, Hair Line
Type Plate Flange, Flat Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck Flange
Connection Type Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Specialized in ASTM A182 F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316L, 316Ti, 316L, 317, 317L, 321, 347, 347H, 348, 254SMO, UNS S31254, UNS 8020, F45, S30815, F46, S30600


Specialty Stainless Steel Flanges / SS Flanges - Larger than 36" flanges regularly available. Hard-to-find configurations and wall ratings are our specialty.

Grade Specification
Stainless 304 / 304L, 304 / 304H A182 / SA182
Stainless 310H A182 / SA182
Stainless 316 / 316L, 316 / 316H A182 / SA182
Stainless 317 / 317L A182 / SA182
Stainless 321 / 321H A182 / SA182
Stainless 347 / 347H A182 / SA182

Available grades of Stainless Steel Flanges / SS Flanges

Stainless Steel 201 Flanges Stainless Steel 316H Flanges
Stainless Steel 202 Flanges Stainless Steel 317 Flanges
Stainless Steel 304 Flanges Stainless Steel 317L Flanges
Stainless Steel 304L Flanges Stainless Steel 321 Flanges
Stainless Steel 304H Flanges Stainless Steel 321H Flanges
Stainless Steel 310 Flanges Stainless Steel 347 Flanges
Stainless Steel 310S Flanges Stainless Steel 347H Flanges
Stainless Steel 316 Flanges Stainless Steel 446 Flanges
Stainless Steel 316L Flanges Stainless Steel 904L Flanges

ANSI B16.5 Stainless Steel Forged 1/2" - 24" Flange Classes

Class 150 Class 300 Class 400
Class 600 Class 900 Class 1500
- Class 2500 -

Stainless Steel Flanges Ready Stock at Microtech Stainless Steel Co.

SS Slip On Flanges / Stainless Steel Slip On Flanges SS Flanges Facing Type Finish / Stainless Steel Flanges Facing Type Finish
SS Welding Neck Flanges / Stainless Steel Welding Neck Flanges SS Collar Flanges / Stainless Steel Collar Flanges
SS Long Welding Neck Flanges / Stainless Steel Long Welding Neck Flanges SS Flat Face Flanges / Stainless Steel Flat Face Flanges
SS Blind Flanges / Stainless Steel Blind Flanges SS Raised Face Flanges / Stainless Steel Raised Face Flanges
SS Lap Joint Flanges / Stainless Steel Lap Joint Flanges SS Ring Type Joint Flanges / Stainless Steel Ring Type Joint Flanges
SS Socket Weld Flanges / Stainless Steel Socket Weld Flanges SS Spectacle Blind Flanges / Stainless Steel Spectacle Blind Flanges
SS Threaded Flanges / Stainless Steel Threaded Flanges SS Plate Flanges / Stainless Steel Plate Flanges
SS Reducing Flanges / Stainless Steel Reducing Flanges SS Flat Flanges / Stainless Steel Flat Flanges
SS Square Flanges / Stainless Steel Square Flanges SS Orifice Flanges / Stainless Steel Orifice Flanges
SS Expander Flanges / Stainless Steel Expander Flanges SS Weldo / Nipo Flanges / Stainless Steel Weldo / Nipo Flanges
SS Groove & Tongue Flanges / Stainless Steel Groove Tongue Flanges SS Loose Flanges / Stainless Steel Loose Flanges
SS Spades Ring Spacers Flanges / Stainless Steel Spades Ring Spacers Flanges SS High Hub Blinds Flanges / Stainless Steel High Hub Blinds Flanges
SS Screwed Flanges / Stainless Steel Screwed Flanges SS Weld Neck Flanges Series A or B / Stainless Steel Weld Neck Flanges Series A or B
- SS Lip type flanges / Stainless Steel Lip type flanges
- SS Puddle Flanges / Stainless Steel Puddle Flanges

Material Specfication and Dimension Standards - Stainless Steel Flanges / SS Flanges

Product Category Material Specification as per ASME/ASTM Dimension Standards
Flanges ASME SA182/, ASTM A182 ANSI B16.5, ASME B16.5, MSS SP-44, ASME B16.47, API 605, ASME B16.36, ANSI B16.36, BS 3293, ASME B16.48, API 590, API 6A, API 6B, JIS B2220, DIN 2573, DIN 2576, DIN 2642, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2565, DIN 2566, DIN 2527, UNI 2276, UNI 2277, UNI 2278, UNI 6089, UNI 6090, UNI 2280, UNI 2283, UNI 2284, UNI 2253, UNI 2254, UNI 6092, UNI 6093, EN 1092-1 TYPE 1, EN 1092-1 TYPE 2, EN 1092-1 TYPE 11, EN 1092-1 TYPE 13, EN 1092-1 TYPE 5 (PN6, PN10, PN16, PN25, PN40

Stainless Steel Flanges / SS Flanges - Size Range

Dimension Standards Size Range Ratings
ASME/ANSI B16.5 1/2" to 24" 150# to 2500#
MSS SP 44 12" TO 60" 150# to 900#
ASME/B16.47/API 605 26" TO 60" -
ASME/ANSI/B16.36 1" TO 24" 300# TO 2500#
BS 3293 26" TO 48" 150# TO 600#
ASME B16.48 / API 590 1/2" TO 24" 150# TO 2500#
API 6A API 6B 2 1/6" TO 30" 2000 PSI TO 20000 PSI
DIN DN10 TO DN3600 PN6 TO PN160

 

Product Size
SS Slip-On Flanges SS Threaded Flanges 1/8″ – 36″
Raised Face or Flat Face
SS Weld Neck Flanges SS Socket Weld Flanges
SS Blind Flanges SS Reducing Flanges
SS Lap Joint Flanges SS Plate Flanges

ANSI/ASME Forged Flanges

Type ASME/ANSI  Pressure Class
ASME/ANSI B16.5 Welding neck flange, slip On flange, blind flange,High hub blind flange, 
Socket weld flange.Lapjoint flange, threaded flange. ring type joint flange.
150, 300, 400 , 600 , 900, 1500 , 2500
ASME/ANSI B16.47(SERIES A & B) Welding neck flange, blind flange 75, 150, 300, 400 , 600 , 900
ASME/ANSI B16.36 (Orifice flanges) welding neck flange, slipon flange, threaded flange 300, 400 , 600 , 900, 1500 , 2500
ASTM/ANSI B16.48 ( Figure-8 blanks) 150, 300, 400 , 600 , 900,1500, 2500
MSS SP44 Welding neck flange, blind flange 300, 400 , 600 , 900
API 6A Welding neck flange, thread flange,Blind flange. 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, 20000Psi, 25000Psi

Available Types of AISI, ASME, DIN, BS, EN SS Flanges

Stainless Steel Screwed Flanges SS JIS WNRF Flanges
SS Long Weld Neck Flanges Stainless Steel SORF Flanges
DIN 1.4438 Spectacle Blind Flanges UNS S31703 Weld Neck Flanges
ASME SA240 SS Ring Joint Flanges ANSI SS Socket Weld Flanges
ASTM SS Threaded Flanges SS Slip On Raise Face Flanges
SS Blind Raise Face Flanges Stainless Steel Lap Joint Flanges
SS EN Orifice Flanges Steel SWRF Flanges
AISI SS BLRF Flanges -

Ready Stock of Stainless Steel AISI, ASME, DIN, BS, EN Flanges & Other Ready Inventory

Flanges Class Availability
ASTM A182 Stainless Steel Flanges 150#
ASTM A182 Stainless Steel Flanges 300#
ASTM A182 Stainless Steel Flanges 400#
ASTM A182 Stainless Steel Flanges 600#
ASTM A182 Stainless Steel Flanges 900#
ASTM A182 Stainless Steel Flanges 1500#
ASTM A182 Stainless Steel Flanges 2500#

ASTM A182 Stainless Steel Flanges / ASTM A182 SS Flanges Available in Stock

ASTM A182 Stainless Steel 201 Flanges ASTM A182 Stainless Steel 316H Flanges
ASTM A182 Stainless Steel 202 Flanges ASTM A182 Stainless Steel 317 Flanges
ASTM A182 Stainless Steel 304 Flanges ASTM A182 Stainless Steel 317L Flanges
ASTM A182 Stainless Steel 304L Flanges ASTM A182 Stainless Steel 321 Flanges
ASTM A182 Stainless Steel 304H Flanges ASTM A182 Stainless Steel 321H Flanges
ASTM A182 Stainless Steel 310 Flanges ASTM A182 Stainless Steel 347 Flanges
ASTM A182 Stainless Steel 310S Flanges ASTM A182 Stainless Steel 347H Flanges
ASTM A182 Stainless Steel 316 Flanges ASTM A182 Stainless Steel 446 Flanges
ASTM A182 Stainless Steel 316L Flanges ASTM A182 Stainless Steel 904L Flanges

Stainless Steel Flanges / SS Flanges Dimensions

Nominal Pipe Size Flanges Inside Diameter (ID)
(inch)
Flanges Outside Diameter (OD)
(inches)
Class 150 Class 300 Class 400 Class 600 Class 900
43102 0.84 1.88 2.13 2.13 2.13 2.5
43163 1.06 2.25 2.63 2.63 2.63 2.75
1 1.31 2.63 2.88 2.88 2.88 3.13
1.25 1.66 3 3.25 3.25 3.25 3.5
1.5 1.91 3.38 3.75 3.75 3.75 3.88
2 2.38 4.13 4.38 4.38 4.38 5.63
2.5 2.88 4.88 5.13 5.13 5.13 6.5
3 3.5 5.38 5.88 5.88 5.88 6.63
4 4.5 6.88 7.13 7 7.63 8.13
5 5.56 7.75 8.5 8.38 9.5 9.75
6 6.62 8.75 9.88 9.75 10.5 11.38
8 8.62 11 12.13 12 12.63 14.13
10 10.75 13.38 14.25 14.13 15.75 17.13
12 12.75 16.13 16.63 16.5 18 19.63

Stainless Steel Flanges Standard

Standards Designation
ASTM A 182
ASME SA 182

Stainless Steel Flanges / SS Flanges Chemical Composition %

C MN SI P S CR NI MO N
0.03 max. 2.00 max. 0.75 max. 0.045 max. 0.03 max. 18.0 – 20.0 11.0-15.0 3.0 – 4.0 0.1

Physical & Mechanical Properties of Stainless Steel Flanges / SS Flanges

Density 7.92
Melting Range,℃ 1450
Elongation % 40
Tensile Strength (Mpa) 515
Yield Strength (Mpa) 205
Hardness (Brinell) 217



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