Stainless Steel 316H Flanges Manufacturer in India
SS 316H stainless steel is a very high molybdenum content austenitic grade of stainless steel, that has been designed to be used in instances where high strength and performance at high temperatures are required. The increased amount of carbon content leads to high-temperature strength and creep resistance, whereas molybdenum increases the level of resistance against pitting, crevice corrosion, and chemical attack in harsh industrial conditions. The applications of SS 316H Flanges include piping that has heat resistance, mechanical strength, corrosion resistance, and high service life. Such flanges are useful in high-temperature, high-pressure, and corrosive environments, and have excellent structural integrity and consistent and leak-free connections in power generation, petrochemical processing, refineries, chemical plants, offshore installations, and other high-temperature industrial applications.
Table of Contents
- What Are SS 316H Flanges?
- Specification Table of SS ASTM A182 316H Industrial Flanges
- Chemical Composition of Grade F316H Stainless Steel Flanges
- ASTM A182 SS 316H Flanges Mechanical Properties
- Equivalent Grades Of ASME SA182 316H Stainless Steel Flanges
- Different Types of Stainless Steel 316H Flanges
- Frequently Asked Questions (FAQ)
What Are SS 316H Flanges?
SS 316H flanges are produced according to the standards of the ASTM A182 F316H standard and are made of forged and rolled stainless steel in high-temperature and high-performance piping systems. It is a grade that has increased carbon content and molybdenum that contributes to increased strength at high temperatures, high corrosiveness during high temperature, and is resistant to corrosion in the presence of chloride and other aggressive chemicals. The augmented carbon levels enhance creep yield and SS 316H flanges can be used in an unbroken and high-temperature services. These flanges are specially created to withstand systems that are prone to high temperature, pressure, and severe industrial media. Power plants, boilers, heat exchangers, petrochemical units, refineries, chemical processing plants, offshore platforms, and other sectors of critical importance are common areas of the application of SS 316H flanges in order to maintain thermal stability, durability, and long-term reliability.
Specification Table of SS ASTM A182 316H Industrial Flanges
| Feature | Details |
| Specifications | ASTM A182 & ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size Range | 1/2? (15 NB) to 48? (1200NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Chemical Composition of Grade F316H Stainless Steel Flanges
Every metal that is used to make the SS 316H flanges theri detailed chemical composition is given below.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 316H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 10.00 - 14.00 | 68.89 min |
ASTM A182 SS 316H Flanges Mechanical Properties
The tensile strength, density, and other mechanical properties are listed below.
| Property | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
| Value | 8.0 g/cm- | 1400 -C (2550 -F) | 515 MPa (75,000 Psi) | 205 MPa (30,000 Psi) | 35 % |
Equivalent Grades Of ASME SA182 316H Stainless Steel Flanges
The SS 316H flanges come in different sizes and standards. Some of the common standards are given below.
| Grade | North America UNS |
France AFNOR |
European W.N. |
Japan JIS |
Russia GOST |
European EN |
Italy UNI |
Austria ONORM |
USA AISI |
| SS 316H | S31609 | 2 CND 17-12 | 1.4401 | - | - | - | - | - | AISI 316H |
Different Types of Stainless Steel 316H Flanges
Slip-On Flanges
Slip-on flanges are easy to install and are a part that slips over the pipe and is welded both inside and outside.
Weld Neck Flanges
These are high-strength flanges with long tapered hub that are suitable for high-pressure applications.
Blind Flange
A type of piping used to seal the end of a pipe or the opening of a valve.
Socket Weld Flanges
These are like the slip-on flanges with a socket through which the pipe is inserted.
Threaded Flanges
Flanges that have internal threads to be connected by not welding.
Lap Joint Flanges
Used with stub ends for easy alignment and disassembly
Orifice Flanges
Specially designed flanges for flow measurement applications
Long Weld Neck Flanges
Extended neck flanges for special piping configurations
Reducing Flanges
Flanges with different bore sizes on each face
Spectacle Blind Flanges
Two metal discs for flow isolation in piping systems
ASTM A182 F316H Stainless Steel Flanges Different Ranges
The Stainless steel flanges come in different ranges, and all the information about these flanges is given below.
| SS 316H Weld Neck Flanges | Stainless Steel 316H EN 1092-1 Flanges |
| SS 316H Long Weld Neck Flanges | Stainless Steel 316H DIN Flanges |
| SS 316H Slip-on Flanges / SORF | ANSI B16.5 SS 316H RTJ Flanges |
| SS 316H Socket Weld Flanges / SWRF | Stainless Steel UNS S31609 Flanges |
| Steel 316H Threaded / Screwed Flanges | ASTM A182 / ASME SA182 SS 316H |
| ANSI 316H Stainless Steel Blind Flange | Stainless Steel DIN 1.4401 Orifice Flange |
| ASTM A182 SS 316H Lap Joint Flanges | Stainless Steel 316H BS 4504 Flanges |
| Stainless Steel 316H WNRF Flange | SS 316H Ring Type Joint (RTJ) Flanges |
| Steel 316H Tongue & Groove Flanges | 316H SS Nipoflange |
| SS 316H Male & Female Flanges | Stainless Steel 316H Spectacle Blind Flanges |
| SS 316H Flat Flange / Raised Face | A182 SS 316H Square Flanges |
| Stainless Steel SUS 316H Reducing Flanges | Stainless Steel 316H Forged Flanges |
Looking for High-Quality SS 316H Flanges?
Choose Metinox Overseas - Your Reliable SS 316H Flanges Manufacturer & Exporter.
Let us support your projects with quality, precision, and performance.
Frequently Asked Questions (FAQ)
The SS 316H flanges have higher carbon content, giving them better strength and performance at high temperatures compared to SS 316 and SS 316L flanges.
It performs very well, maintaining strength, stability, and reliability under high heat and high-pressure conditions.
The most common types include weld neck, slip-on, blind, socket weld, and threaded flanges.
They are commonly used in power plants, refineries, petrochemical units, boilers, heat exchangers, and high-temperature industrial systems.
They offer better heat resistance, higher strength, improved creep resistance, and long-term durability in high-temperature environments.
Enquire Now
Get pricing within 24 hours!
