MS Flanges for Industrial Piping Projects
Slip-on, blind and standard MS flanges in ASA 150#, ASA 300#, Table D/E/F/H, IS, ND-16, ND-40 and IBR quality options — with price list, MTC and flange identification support.
On this page
- MS flanges at a glance
- What are MS flanges?
- MS flange types we supply
- Standards, classes and tables
- OD, PCD, holes and thickness
- Flange identifier tool
- MS vs CS vs forged flange
- Industrial applications
- How to choose the right flange
- VS branded MS flanges
- Price list and enquiry support
- Why source from VSC?
- Related pages
- FAQs
- Send requirement
MS Flanges at a Glance
These are the details a buyer should check before asking for MS flange price or availability.
| Buyer Check | What It Means |
|---|---|
| Flange Type | Slip-on, blind, weld neck, threaded, socket weld or plate flange |
| Size | NB / inch / mm size, such as 50 NB, 2 inch or 100 NB |
| Class / Table | ASA 150#, ASA 300#, Table D/E/F/H, IS, ND-16, ND-40 or IBR quality |
| OD | Outside diameter of the flange |
| PCD | Pitch circle diameter of bolt holes |
| Holes & Hole Diameter | Number of bolt holes and size of each hole |
| Thickness | Total flange thickness |
| Material | MS / CS / SS / forged, as required |
| Certificate | MTC required or not |
| Application | Pipe line, valve connection, pump connection, fabrication or project supply |
What Are MS Flanges?
A practical explanation for buyers, contractors and project teams.
MS flanges are mild steel flanges used to connect pipes, valves, pumps and equipment in a piping system. They create a detachable bolted joint using gasket, bolts and nuts.
They are useful where the line may need opening later for maintenance, inspection, replacement or cleaning. MS flanges are commonly asked in industrial water lines, utility piping, fabrication work, valve connections and general project supply.
Flange selection should not be done only by size. The flange type, class/table, OD, PCD, hole count, hole diameter, thickness and application must match the connected pipe, valve, pump or existing flange.
MS Flange Types We Supply
Common flange types used in industrial piping, fabrication and maintenance work.
MS Slip-On Flange
Used where the pipe is inserted through the flange and welded. Common in water, utility and fabrication lines.
MS Blind Flange
Used to close the end of a pipeline, valve line, tank opening or inspection point.
MS Weld Neck Flange
Used where a stronger welded connection and better stress distribution are required.
MS Plate Flange
Used in fabrication, general piping and economical flange requirements.
MS Threaded Flange
Used where threaded connection is required and welding is not preferred.
MS Socket Weld Flange
Used for smaller bore lines where socket weld connection is required.
IBR Quality Flange
Used where boiler, steam or project specification asks for IBR quality.
VS Branded Flange
VS branded slip-on and blind flanges as per BS16.5 Class 150#, with MTC support where required.
MS Flange Standards, Classes and Tables Explained
Most flange enquiries become clear when the buyer confirms the required class, table or standard.
| Standard / Class | Common Buying Use |
|---|---|
| ASA 150# | General industrial piping, valves and utility lines |
| ASA 300# | Higher pressure requirement compared to ASA 150# |
| Table D | Common water and low-pressure utility use |
| Table E | Water, utility and general industrial use |
| Table F | Heavier table requirement |
| Table H | Heavy-duty flange requirement |
| IS Standard Flanges | Indian standard project requirements |
| ND-16 | Commonly used where ND/PN style rating is specified |
| ND-40 | Higher pressure ND rating requirement |
| IBR Quality | Boiler, steam or IBR project requirement |
| BS16.5 Class 150# | VS branded slip-on and blind flange range |
Important MS Flange Dimensions Buyers Should Check
These measurements help avoid mismatch during installation.
OD — Outside Diameter
The total outer diameter of the flange.
PCD — Pitch Circle Diameter
The circle passing through the centre of the bolt holes.
Bore / ID
The inside opening where the pipe passes through.
Hole Count
Number of bolt holes, such as 4 holes, 8 holes or 12 holes.
Hole Diameter
Diameter of each bolt hole for bolt fitment.
Thickness
Total flange thickness, important for matching and strength.
Flange Identification Tool
Enter OD, PCD and optional thickness to identify possible flange table and size matches.
Flange Identification Tool
Enter OD, PCD, and optionally Thickness to identify possible flange table and size matches instantly.
OD means Outside Diameter and PCD means Pitch Circle Diameter.
Note: Thickness is optional. If not entered, the tool will show all possible matches based on OD and PCD.
How to use it
- Measure the Outside Diameter (OD).
- Measure the Pitch Circle Diameter (PCD).
- Enter the values and click Identify Flange.
MS Flange vs CS Flange vs Forged Flange
These terms are sometimes used loosely in the market, so project buyers should confirm the exact material and standard.
| Point | MS Flange | CS Flange | Forged Flange |
|---|---|---|---|
| Material | Mild steel | Carbon steel | Forged steel |
| Common Use | General piping, fabrication, water and utility lines | Industrial piping and project supply | Higher pressure and stronger connection requirements |
| Strength | General duty | Better for industrial use | Higher strength |
| Price | Usually economical | Higher than MS depending on grade | Usually highest |
| Buying Use | General flange requirement | Standard/project-based requirement | Pressure-critical or specification-based requirement |
| Buyer Note | Often used in local market for general flanges | Confirm grade/specification | Confirm class, material and MTC requirement |
Industrial Applications of MS Flanges
MS flanges are used wherever a bolted joint is needed for connection, maintenance or future replacement.
Pipe-to-Pipe Connection
Used to connect two pipe sections with bolted joint support.
Pipe-to-Valve Connection
Used with gate valves, butterfly valves, NRV, ball valves and other flanged valves.
Pump Connection
Used to connect pump suction and discharge lines.
Tank and Vessel Connection
Used for inlet, outlet and maintenance openings.
Industrial Utility Lines
Used in plant piping, water lines, air lines and service lines.
Fabrication Work
Used by fabricators, contractors and maintenance teams.
Firefighting / MEP Lines
Used where project specification permits suitable flange type and rating.
Boiler / Steam Projects
Used where IBR quality flange is specified.
How to Choose the Right MS Flange
Use this checklist before asking for price or placing an order.
| Situation | Better Buying Step |
|---|---|
| Existing flange replacement | Measure OD, PCD, holes, hole diameter and thickness |
| New pipeline work | Confirm pipe size, flange type and pressure class/table |
| Valve connection | Match valve flange drilling and class |
| Pump connection | Match pump nozzle flange details |
| Water / utility line | Check if Table D/E/F/H or ASA class is required |
| Boiler / steam line | Check if IBR quality flange is required |
| Certificate required | Ask for MTC before placing order |
| Not sure about class | Use flange identifier tool or send photo |
| Price enquiry | Share type, size, class/table, quantity and delivery location |
VS Branded MS Flanges
Vijay Sales Corporation offers VS branded flanges for project and industrial supply requirements.
VS branded flanges are available as per BS16.5 Class 150#. The VS flange range includes slip-on flanges and blind flanges, and Material Test Certificates can be provided for VS branded flanges when required.
BS16.5 Class 150#
Standard range for VS branded flanges.
Slip-On & Blind
Commonly required flange types for industrial lines.
MTC Support
Material Test Certificate support available where required.
Flange Charts for Dimension Reference
Flange charts help buyers, engineers and contractors check flange size, bolt circle diameter, number of bolts, bolt size, thickness and pressure rating before final selection.
Using flange charts helps improve compatibility between different components in a piping system and reduces the chance of mismatch during installation.
MS Flange Price List and Enquiry Support
MS flange price depends on size, type, class/table, OD, PCD, thickness, drilling, material, certificate requirement, quantity and delivery location.
Why Source MS Flanges from Vijay Sales Corporation
Vijay Sales Corporation has been supplying industrial pipes, fittings, valves and flanges since 1961. We support buyers with flange type, size, class/table, OD, PCD, thickness, drilling, price list and MTC-related requirements.
Six Decades of Trade
Supplying industrial piping products since 1961 from Hauz Qazi, Delhi.
Large Flange Inventory
MS flanges available across ASA, table, IS, ND and IBR quality requirements.
VS Branded Flanges
VS branded slip-on and blind flanges as per BS16.5 Class 150# with MTC support.
Flange Identification Support
Help with OD, PCD, drilling, thickness and correct flange selection.
MS Flanges — Frequently Asked Questions
Common questions buyers ask before sending a flange requirement.
What is an MS flange?
An MS flange is a mild steel flange used to connect pipes, valves, pumps and equipment with a bolted joint.
Where are MS flanges used?
They are used in pipe-to-pipe connections, valve connections, pump connections, tank openings, utility lines, fabrication and maintenance work.
What details are required to buy MS flanges?
Share flange type, size, class/table, OD, PCD, holes, hole diameter, thickness, material, quantity, delivery location and MTC requirement.
What is PCD in flange?
PCD means Pitch Circle Diameter. It is the diameter of the circle passing through the centre of the bolt holes.
What is OD in flange?
OD means Outside Diameter. It is the total outside diameter of the flange.
What is ASA 150 flange?
ASA 150# is a commonly asked flange class used in many general industrial piping and valve connection requirements.
What is the difference between ASA 150 and ASA 300 flange?
ASA 300# is used for higher pressure requirements compared to ASA 150#. Dimensions, thickness and drilling may differ.
What is the difference between Table D and Table E flange?
Both are BS table flange references. Table E is generally checked for heavier requirements than Table D in many water and utility applications.
What is a slip-on flange?
A slip-on flange allows the pipe to pass through the flange before welding. It is commonly used in general piping and fabrication.
What is a blind flange?
A blind flange is used to close the end of a pipeline, valve line, tank opening or inspection point.
Can MS flanges be supplied with MTC?
Yes, MTC support can be provided for VS branded flanges where required.
How do I identify an old flange?
Measure OD, PCD, number of holes, hole diameter, thickness and bore size, or use the flange identifier tool on this page.
Send Your MS Flange Requirement
Fill the details and send your requirement directly on WhatsApp.
Need MS Flanges for Your Project?
Share your flange type, size, class/table, OD, PCD, holes, thickness, quantity and delivery location. Vijay Sales Corporation will help you check suitable MS flange options, price list support, MTC availability and dispatch details.