Flange Manufacturer in India

Check forged steel pipe flanges specification & price as per ASME B16.5

Pipe flange specification

Contact us for all pipe flanges types, and manufacturing methods, and view the pressure capacity of steel flange

Types of flanges used in oil and gas industry

Pipe flange price list

• Products = WNRF Flange
• Material = Duplex F51/F60

Standard for flanges

Manufacturing methods of steel pipe flanges

Methods	Standard	Forging
Forged	ASME B16.5
Plate	ANSI B16.5
Cast	ASTM A341 & MSS SP-51

 

Element	Forged	Plate	Casting
Price	Good	Best	Better
Strength	Best	Good	Better
Sizes	Better	Good	Best
Tolerances	Good	Better	Best
Limiting Material Waste	Best	Good	Better
Pressure Capacity	Best	Good	Better
Material & Grade	Better	Good	Best

Forged steel flanges pressure capacity

Country Origin and Manufacturing Standards

Supplier & stockists of industrial pipe flanges in Mumbai, offer BLRF, SORF, SWRF, and WNRF with CNC machining

Also check high temperature flanges (RF, FF, and RTF) face types & (DIN, EN, BS, and AWWA C207) standard.

Types of flange faces

Face Types	Diagram	Marking symbol	Height
Raised Face		RF	1/16″ for CL 150 to 300 1/4″ for CL 400, 600, 900, 1500 and 2500
Flat Face		FF	–
Ring Type Joint		RTJ	Class 600 and above
Lap Joint Face		LJRF	–
Tongue Groove Face		T&G	–
Male Female Face		M&F	Female face = 3/16″ deep Male face = 1/4″ high

Steel flange thickness

SCH 10	SCH 20
SCH 30	STD Wall
SCH 40	SCH 60
EXT Hvy	SCH 80
SCH 100	SCH 120
SCH 140	SCH 160
XX Hvy	–

Threading types of flange

Finish types of ANSI B16.5 flange

Types Of Finish	Diagram	Finish Value
Stock Finish		125- to 250-μin
Serrated Finish		Required 30 to 55 grooves per inches
Spiral Serrated		Generated using a 90-deg tool
Concentric Serrated		125 and 500 micro inches
Smooth Finish		63-125 AA
Mirror Finish		–

ANSI B16.5 flange material and grade

Types of flanges classes

HS code for forged pipe flanges

Find all thicknesses of high pressure flanges in stock, bolt hole number, and suitable temperature of large diameter steel flanges in Class 150 To 2500

Suitable temperature of pipe weld flanges

American standard of ASME B16.5 flange

Pressure types of forged flanges

Refer ASME B16.5 flanges thickness tolerance, Markings, and weight chart of forged flanges at Ramesh Group

Flange thickness tolerance

Tolerances In MM	Thickness In MM
+3.0, -0.0 mm	tf ≤ 25 mm
+5.0, -0.0 mm	25 < tf ≤ 50 mm
+8.0, -0.0 mm	50 < tf ≤ 75 mm
+10.0, -0.0 mm	tf > 75 mm 0

Markings on industrial steel flanges

Supporting material of Class 150 flanges

• Ring-Joint
• Bolts & Nust
• Gasket
• Washer and Screw

Steel flange bolt hole diameter and number

Torque sequence for low pressure flanges

Type	Diagram	Sequence For Bolt
4 bolt flanges		1 To 4
8 bolt flanges		1 To 8
12 bolt flanges		1 To 12
16 bolt flanges		1 To 16
20 bolt flanges		1 To 20
24 bolt flanges		1 To 24
28 bolt flanges		1 To 28
32 bolt flanges		1 To 32

Incoming Inspection

• • Correlated MTC verification
  • Sample Cutting from each lot to verify Mechanical and Chemical Properties
  • Visual and Dimensional Inspection
  • Ultrasonic Test

Prior to manufacturing, Each pipe flanges with Raw Material Heat Number after receiving clearance from QA/QC Engineers along with the supporting documents of above tests carried out

In Process Inspection

Heat Treatment (Soultion Annealing) – Monitoring temperature and time

• One sample test for each heat/each heat treatment batch
• Chemical and Mechanical test
• UTS, YS, % elongation & RA
• IGC Test
• Hardness Test
• IGC Test (If Applicable)

NDT Test – Free from surface defects – 100% Quantity

• Visual Inspection
• Dimensional Inspection
• Hardness Test
• Processing conditions check
• Raw Material Identification (By marking done during Incoming Inspection)
• Surface Cleaning

Colour coding is followed

• Accepted forgings = Blue Colour
• Rejected forgings = Red Colour
• Repair Forgings = Yellow Colour

Finished Goods Inspection

• Visual, Dimensional check – 100% Quantity
• PMI check – 100% Quantity
• Magnetic Particle Inspection / Dye Penetrate Test / Liquid Penetrant test on Machined parts – 100% Quantity
• Mill Test Certificate review – 100% Quantity
• Colour, Marking, Packing – 100% Quantity

Additional Information

• Dies are checked from time to time and if the dies are oversized rectification process is carried out prior to manufacturing
• Stage wise report is maintained for the entire internal process of manufacturing and inspection procedure
• Day to day progress of manufacturing dimensions are noted and ensured that they are within permissible limits
• NDT/PMI/Colour Coding procedure manual is being prepared by Ramesh Steel Corporation
• Quarterly training is being given to NDT Team, PMI Team, QC/QA Inspectors

Frequently Asked Questions (FAQs) –

Will you provide MTC EN 10204 3.1 with material?

Yes, we provide Material Test Certificates (MTC) in accordance with EN 10204 3.1 standards.

Will you provide MTC EN 10204 3.2 with material?

Certainly, we offer Material Test Certificates (MTC) in compliance with EN 10204 3.2 standards upon request. Charges extra.

Do you provide sample MTC for approval?

Yes, we do

Do you provide certificate of origin? Any extra charges

Yes, we provide at no additional cost.

Do you provide certificate of conformity?

Yes, upon request

Can you provide PMI report with photographs and videos before dispatch for 100% quantity?

Yes, we can provide you the same for 100% ordered quantity

) Is the quote valid for a minimum of 60 days, considering the prolonged duration of the bidding process?

Yes, the quote is indeed valid for at least 60 days

What is the transit time to Jebel Ali Seaport, Dubai?

6 Days – direct vessel

What is the transit time to Sheikh Khalifa Seaport, Abu Dhabi?

8 Days – direct vessel

Will the marking on flanges will be stencilled or hard puched?

Marking on flanges will be hard punched which is as per standard.

Will the Heat Number marked on all material match with MTC?

Yes, we do

Is all material NACE MR0175 certified?

Yes, we do

Will you put raise face protector to avoid damage?

Yes, we do

Do you accept third party inspection?

Yes, we do

What is the origin of material?

India

Top 8 Reasons to Choose Ramesh Group for High Pressure Applications

• ADNOC approved manufacturer and supplier of seamless fittings and forged steel flanges
• Supply industrial steel piping products in Europe as per CBAM requirements
• Exporter of high performance weld fittings suitable for corrosion resistant environment
• Distributor of butt welding fittings for Marine application as per MTC EN 10204 3.1/ 3.2
• All pipe flange comes with NACE MR0175 and pressure class 150 to 2500 as per ASME B16.5.
• Over 250 Fabricators and traders in Middle East and European countries import prime quality BLRF, SORF and WNRF flanges because our material is accepted in Abu Dhabi National Oil Company
• Supplying SMLS elbow, tee, reducer and end cap to Stockist and wholesaler of piping materials in Saudi Arabia at Resale price as per ASME B16.9.
• Keep custom sizes Ex stock of standard sizes with stockholders in USA and Mexico for urgent requirements in replacement situations