Stainless steel 316 flanges

Why choose stainless steel 316 flanges?

Stainless steel 316 flange has high strength, durability, corrosion resistance and ability to resist immense pressure.

Corrosion resistance: It is highly resistant to corrosion as compare to other metals. As liquid and gas flow in oil pipeline cause internal corrosion in piping system.

Strength: Weld fitting and joint is generally a weak point for any of liquid and gas flow tool. Addition of molybdenum and titanium increase the strength and decrease the chance for deformation.

Versatility: It can be used for several of environment as it is appropriate for wide range of application both in indoor and outdoor.

Pressure and temperature tolerance: It resist high pressure and temperature. ASTM A182 F316 flange can be used in extreme temperature in range of 500 - 800°C.

Value: It is highly durable and can last for decade utilizing in liquid and gas flow with the piping system. It is easy to maintain and due to its corrosion resistance properties it doesn’t need to be replace for years.

Stainless steel 316 flanges manufacturer in India

SA 182 grade F316 slip on flanges and ASTM A182 F316 blind flange manufacturer in India

What are the standards for SA 182 Gr F316 flanges?

The below given standards often applied to stainless steel flange which includes the following

  • ASTM A182 – It cover forged or rolled piping system element deliberated to used in high-temperature
  • ASME B16.5 – It is dimensional standard for stainless pipe flange and flange fittings
  • ASME B16.34 – It is a pressure rating used for threaded and welded valves used for connecting flange
  • ASME B16.47 – It is for large-diameter stainless steel flanges
  • AWWA C228 – It sets the minimum material requirements and dimensions for stainless steel flange which is used in stainless steel piping system

Get high-quality 316 stainless steel flanges at competitive prices from a trusted manufacturer in India, at Aesteiron we offer MTC EN 10204 type 3.1 to ensure perfect material

How are 316 SS flanges made?

316 SS flange are made by using three main process such as casting, cutting rolled plate & forging. The main flange production consists processing of raw material than falling it in appropriate specification.

Raw material: It undergoes to a careful testing and approval process before purchasing it. The Mill Test Report reveals the chemical and physical properties which help to verify that the material meet the minimum requirement of your desired application.

Casting: It begins with molten metal which is poured into mold to form the desired shape of flange. After the liquid metal get hardened then the mold is opened and casting is been removed then it is machined to the required dimensions and surface finish.

Cutting: The process begin by flattening stainless steel stock by using rollers in order to thin the material until it gain desired plate thickness. Then it is cut to suitable outer and inner diameter using a laser, torch or water jet. Bolt holes and required grinder are cut and then the flange is further machined in exact specification.

ASTM A182 F316 Specification

Standard Specifications ASTM A182 F316 / ASME SA 182 grade F316 (SS 316 forged flanges)
ASTM A240 F316 / ASME SA 240 grade F316 (SS 316 plate flanges)
Dimensions ANSI/ASME B16.5, ASME B16.47 Series A & B, and ASME B16.48
Manufacturing Standards
  • BS (British Standard)
  • DIN, EN (European Standards ss 316 flanges manufacturer)
  • ASA/ANSI/ASME B16.5/16.36/16.47A/16.47B
  • API 605
  • B16.48
  • MSS S44
  • EN-1092
  • GOST Flange
  • B16.47 Series A & B
  • ISO 70051
  • JIS B2220
  • BS1560-3.1
  • EN 1092
  • API 7S-15
  • BS 10
  • API 7S-43
  • BS4504
Manufacturing Range 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 or custom sizes & design as per drawing
Pressure Class 150 to 2500
Material of Origin West Europe / Japan / USA / Korean
Types of SS 316 flanges we produce at Aesteiron
  • ASTM A182 F316 forged flange
  • A240 F316 plate flange
  • ASTM A182 Gr F316 blind flange
  • ASTM A182 Grade F316 weld neck flange
  • ASME SA182 F316 slip on flange
  • SA182 Gr F316 socket weld flange
  • 316 stainless steel threaded flange
  • Stainless steel 316 lap joint flange
  • SS 316 SORF flange
  • AISI 316 WNRF flange
  • SUS 316 LWNRF flange
  • DIN 1.4401 orifice flange
  • UNS S31600 RTJ flange
  • and many others

What are the major differences between ASTM A182 F316 and A182 F316L material?

Here are 6 major differences between ASTM A182 F316 and A182 F316L including cost

  ASTM A182 F316 ASTM A182 F316L
Maximum carbon content 0.08% 0.03%
Corrosion-resistant highly corrosion-resistant more resistant to corrosion
Weldability good weldability better weldability
Cost less expensive more expensive compared to SA 182 grade 316
Mechanical properties higher tensile strength slightly higher tensile strength
Applications suitable for high-temperature resistance eg. chemical and petrochemical sectors suitable for high corrosion resistance eg pharmaceutical and food sectors

ASME B16.5 ½” – 24” class 150 stainless steel 316 blind flange weight chart

Stainless steel 316 flange weight chart

Please note above value may vary based on specific manufacturer and the production method.

SS 316 Blind flange Chemical Composition

SS 316 Blind flange Chemical Composition

316 Stainless Steel slip on flanges Mechanical Properties

316 Stainless Steel slip on flanges Mechanical Properties

Physical Properties of AISI 316 WNRF flange

Physical Properties of AISI 316 WNRF flange

316 SS Flanges Equivalent Grades

316 SS Flanges Equivalent Grades

SA 182 F316 Flange types and features

ASTM A182 Gr F316 Blind Flange
ASTM A182 F316 Slip on Flange
SA182 Gr F316 Weld Neck Flange
ASTM A182 Grade F316 Socket Weld Flange
SA 182 F316 Threaded Flange
316 stainless steel Spectacle Blind Flange
SS 316 Lap Joint Flange
Stainless steel 316 Plate Flanges
AISI 316 Long Weld Neck Flange
SUS 316 RTJ Flange
DIN 1.4401 Forged Flange
UNS S31600 Orifice Flange

Which SUS 316 flange connection is the strongest?

SUS 316 Weld neck flange provides the strongest connection as it gives the highest level of joint strength as it is butt-welded to the pipe.

Which type of material is used for making flange?

The typical material which is use for making the flange are given below:

  • Aluminum
  • Carbon Steel
  • Ductile iron
  • Mild Steel
  • Stainless Steel

What is the allowable gap between flanges?

The minimum suggested gap between the outermost border of two flanges are 25mm.

What is the purpose of 316 Stainless Steel Pipe Flanges?

The purpose of 316 Stainless Steel Pipe Flanges is to connect pipe with valve, fitting and specified element such as strainer and pressure vessel.

What are the 3 most common flange types?

The three most common type of flange are given below:

Welding Neck Flange

It is well-known for its long tapered hub which offer mechanical strength. It is available in various size with common face type. And due to its high strength and weldability it is suitable for high temperature and pressure application.

Slip-on flange

It is usually used to connect pipe by one or two fillet welds. However it is used only with a single weld. It can be manufacture in various sizes and it is recommended to be used in lower pressure applications.

Socket weld flange

It has socket in which a pipe is inserted and the pipe is secured by one fillet weld placed on the exterior of the flange hub. It is not considered for high strength weldability because the weld is difficult to prove, hence it is only suitable for low medium classes. Due to its lower strength and unsuitability to be used in higher pressure, it always has flat or raised face.

Click here to download complete Steel Flange Handbook in PDF format- Flange Dimensions

Manufacturer of SS 316 flanges in India, mainly used in oil and gas, chemical processing, and food and beverage sector

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