SS 409 Flanges Supplier

Stainless steel flanges are essential components in piping systems. They are used to join two pipes together or close off a pipe's end. While all stainless steel flanges provide similar benefits, some differences exist between types of stainless steel flange.

ANSI B16.5 Stainless Steel 409 Flanges, Stainless Steel 410 Flanges, Stainless Steel 420 Flanges, UNS S40900 Flanges, Stainless Steel 1.4512 Flanges, SS S41000 Flanges, Stainless Steel 409 Flanges, SS S42000 Flanges Stockist, Astm A182 Gr F409 Flanges, 409 Stainless Steel Flanges, 409 Ss Flanges, Stainless Steel Alloy 409 Flanges, ASTM A182 410 Stainless Steel Flanges Supplier in Mumbai, India.

Stainless Steel 409 Flanges have the lowest corrosion resistance among all the different types of stainless steel. However, they still offer excellent corrosion resistance in environments with moderate exposure to salt spray or other corrosive elements such as chlorine or sulfur compounds. These flanges can be used for low-pressure systems like exhaust manifolds due to their lower pressure rating than other stainless steel flanges. At Metcore Steel, we pride ourselves on providing excellent customer service and offering a wide range of products, including Stainless Steel 409 Flanges and Monel 400 Flanges.

409 Stainless Steel Slip-On Flanges, 410 Stainless Steel Weld Neck Flanges, AISI 420 Stainless Steel Blind Flanges, 1.4021 Stainless Steel Forged Flanges Exporter, Stainless Steel 1.4512 Threaded Flanges, ASME SA 182 Stainless Steel 410 Ring Type Joint Flange, Stainless Steel 1.4006 Socket Weld Flange, SUS 420 Loose Flanges, 410 SS Industrial Flanges, Ss 409 Flange, 409 SS Reducing Flanges Manufacturer in India.

Stainless Steel 410 Flanges are slightly more corrosion-resistant than 409 but not as strong in strength and hardness. These flanges are ideal for applications that require higher temperatures than what 409 can handle since it has a higher melting point. Applications that use these flange types include petrochemical plants, automotive exhaust systems, and food processing equipment due to their high resistance against certain chemicals and environments.

The last type is Stainless Steel 420 Flange, which offers excellent strength, hardness, and outstanding corrosion resistance in aggressive environments like salty water or acidic liquids. This type of stainless steel also offers good wear resistance, making them ideal for applications such as valves or pumps that may experience frequent use, which could cause wear over time if not adequately protected with the right material choice, in this case being 420-grade stainless steel. These types of stainless steel also offer excellent welding properties, making them perfect for intricate piping systems that require welding instead of bolts for assembly purposes. In addition to our range of Stainless Steel 409 Flanges, we also offer a variety of Incoloy 800 Flanges to meet your piping needs.
All three types of stainless steel 409, 410, and 420—offer different benefits depending on their intended use in a specific application environment or system needs. Depending on application requirements, anyone will need one type over another. Still, all three should be considered when selecting a material for a project since each one offers unique properties that could make it the best choice for specific needs.


Stainless steel 420 flanges are commonly used in applications that require good strength and hardness, such as aerospace, engineering, and automotive industries. They offer good resistance to corrosion & are easy to machine, making them ideal for use in a wide range of applications.
The strength of 410 SS flanges varies depending on the heat treatment and the flange size. Generally, they offer good strength and hardness, making them suitable for use in high-temperature & high-pressure applications.
SS 409 flanges are pipe fitting made from grade 409 stainless steel. These flanges provide a strong and reliable connection between two pipe sections or between a pipe & a valve, pump, or other equipment. They are commonly used in applications that require good resistance to corrosion & high temperatures, such as automotive exhaust systems.

SS 409 Flanges Specification

Specifications :

Dimensions :

Standard :

Size :

Class/Pressure :

Flange Face Type :

ASTM A182, ASTM A182

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

1/2" (15 NB) to 48" (1200NB)

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

SS 410 Flanges Equivalent Grades

Grade DIN UNS AISI AFNOR BS GOST JIS
SS 409 1.4512 S40900 409 Z3CT12 409 S 19 SUH 409
SS 410 1.4006 S41000 - - 410S21 SUS 410
SS 420 1.4021 S42000 - - - - SUS 420

SS 420 Flanges Chemical Composition

Grade C Ni Si S Mn P Cr Ti
SS 409 0.15 max max 0.5 max 1.00 max 0.045 max 1.00 max 0.045max 10.5 – 11.75 6x C – 0.75
SS 410 0.15 max 0.50 max5 1.0 max 0.030 max 1.0 max 0.040 max 11.5 – 13.5
SS 420 0.16 – 0.25 max 1 max 0.015 max 15 max 0.04 12 – 14

SS 409 Flanges Mechanical Properties

Grade Tensile Strength(MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Rockwell B (HRB) max Brinell (HB) max
SS 409 450 240 25 75 131
SS 410 65 (450) 30 (205) 20 96 217
SS 420 MPa – 380 MPa – 170 20 % Rockwell B (HR B)- 88 / Brinell (HB)- 0.5t -


SS 410 Flanges Available Types

Stainless Steel 409 / 410 / 420 Slip On Flanges
  • Stainless Steel 409 Slip On Flanges
  • Stainless Steel 410 Slip On Flanges
  • Stainless Steel 420 Slip On Flanges
  • SS S40900, S41000, S42000 Slip On Flanges
  • 1.4512, 1.4006, 1.4021 Slip On Flanges
  • ASTM A182 SS 409 Slip On Flanges (SORF)
  • ASME SA 182 Stainless Steel 410 Slip On Flanges
Stainless Steel 409 / 410 / 420 Weld Neck Flanges
  • Stainless Steel 409 Weld Neck Flanges
  • Stainless Steel 410 Weld Neck Flanges
  • Stainless Steel 420 Weld Neck Flanges
  • SS S40900, S41000, S42000 Weld Neck Flanges
  • 1.4512, 1.4006, 1.4021 Weld Neck Flanges
  • ASTM A182 SS 409 Weld Neck Flanges (WNRF)
  • ASME SA 182 Stainless Steel 410 Weld Neck Flanges
Stainless Steel 409 / 410 / 420 Socket Weld Flanges
  • Stainless Steel 409 Socket Weld Flanges
  • Stainless Steel 410 Socket Weld Flanges
  • Stainless Steel 420 Socket Weld Flanges
  • SS S40900, S41000, S42000 Socket Weld Flanges
  • 1.4512, 1.4006, 1.4021 Socket Weld Flanges
  • ASTM A182 SS 409 Socket Weld Flanges (SWRF)
  • ASME SA 182 Stainless Steel 410 Socket Weld Flanges
Stainless Steel 409 / 410 / 420 Blind Flanges
  • Stainless Steel 409 Blind Flanges
  • Stainless Steel 410 Blind Flanges
  • Stainless Steel 420 Blind Flanges
  • SS S40900, S41000, S42000 Blind Flanges
  • 1.4512, 1.4006, 1.4021 Blind Flanges
  • ASTM A182 SS 409 Blind Flanges (BLRF)
  • ASME SA 182 Stainless Steel 410 Blind Flanges
Stainless Steel 409 / 410 / 420 Ring Type Joint Flanges
  • Stainless Steel 409 Ring Type Joint Flanges
  • Stainless Steel 410 Ring Type Joint Flanges
  • Stainless Steel 420 Ring Type Joint Flanges
  • SS S40900, S41000, S42000 Ring Type Joint Flanges
  • 1.4512, 1.4006, 1.4021 Ring Type Joint Flanges
  • ASTM A182 SS 409 Ring Type Joint Flanges (RTJ)
  • ASME SA 182 Stainless Steel 410 Ring Type Joint Flanges
Stainless Steel 409 / 410 / 420 Long Weld Neck Flanges
  • Stainless Steel 409 Long Weld Neck Flanges
  • Stainless Steel 410 Long Weld Neck Flanges
  • Stainless Steel 420 Long Weld Neck Flanges
  • SS S40900, S41000, S42000 Long Weld Neck Flanges
  • 1.4512, 1.4006, 1.4021 Long Weld Neck Flanges
  • ASTM A182 SS 409 Long Weld Neck Flanges
  • ASME SA 182 Stainless Steel 410 Long Weld Neck Flanges

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