Carbon Steel Flanges UK
MDS Petrochemical manufactures and supplies high-quality carbon steel flanges, alloy flanges and flange fittings for the international Petrochemical Industry.
As a UK supplier of flanges for petrochemical, process, pipeline and industrial applications, MDS Petrochemical can support requirements for carbon steel flanges UK, steel flanges, flange fittings and specialist flange types manufactured and quality controlled to recognised standards.
Types of Quality Flanges
Our carbon steel, alloy and stainless steel flanges are available in various formats such as Slip-On, Blind, Weldneck, Socketweld, Threaded flanges, Lap Joint, Orifice, Spectacle Blinds, and Long Welded Neck. Flanges are available in sizes from 1/4" to 64" and are manufactured and quality controlled to meet ASME, ASTM, BS, and DIN/WERKSTOFFE standards.
Carbon Steel Flanges UK
MDS Petrochemical supplies carbon steel flanges across the UK for demanding industrial and petrochemical environments. Customers searching for flange manufacturers UK, flange suppliers UK or flange stockists UK can contact our team for support with flange type, size, pressure rating, material grade and specification.
If you would like to know more about our flanges and forged carbon steel fittings please contact our sales team +44 (0) 1384 270 666 or complete our online enquiry form to discuss your requirements.
Specifications
Slip On, Blind, Weldneck, Socketweld, Threaded, Lap Joint, Orifice, Spectacle Blinds and Long Welded Neck.
Sizes available
1/4" through to 64"
Wall thickness
Schedule 5s through to Schedule XXS and heavier.
Flange Dimensions/Pressure Ratings
ANSI, MSS- SP-44, BS3293, API 605
150lb through to 2500lb
Flange Facings
Raised Face, Ring Type Joint
Large Tongue & Groove, Small Tongue & Groove
BS4504 - PN6, 10, 16, 25 & 64
BS10 - Table D, E, F & H
DIN Standards
Special items according to customer drawings.
Material Grades
Stainless Steel
A182 F304/L/H, F310/H, F316/L/H, F321/H, F347/H,
F410, F440, 904L
Range of Carbon Steel
A105, C22.8
Low Temperature Steel
A350, LF2, LF3, LF6
Alloy Steel
A182 F1, F5, F9, F11, F12, F22, F91
High Yield
A694, F42, F52, F60, F65, F70
Duplex & Super Duplex
A182 F51, F44, UNS S32760
Nickel Alloys
200, 400, 600, 625, 800, 825
Alloys
ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
Unusual Grades
Bronze, Brass, Copper, Cupro Nickel, Titanium
Dimensions
All flanges are made and controlled to the relevant standards such as: ASME, ASTM, BS en and DIN/WERKSTOFFE.

Frequently Asked Questions
What is a carbon steel flange?
A carbon steel flange is a forged or cast component used to connect pipes, valves, pumps or other equipment within a pipework system. Carbon steel flanges are commonly used in petrochemical, oil and gas, power generation and industrial applications where strength, durability and pressure resistance are important.
What are the grades of carbon steel flanges?
Common carbon steel flange grades include ASTM A105, ASTM A350 LF2 and ASTM A694. ASTM A105 is widely used for high-temperature and pressure applications, ASTM A350 LF2 is used for low-temperature environments, and ASTM A694 covers high-strength carbon steel flanges often used in higher-pressure pipeline services.
What types of flanges can MDS Petrochemical supply?
MDS Petrochemical can support requirements for slip-on flanges, blind flanges, weldneck flanges, socketweld flanges, threaded flanges, lap joint flanges, orifice flanges, spectacle blinds and long welded neck flanges.
What sizes are available?
Flanges are available in sizes from 1/4" to 64", depending on the specification, material grade and customer requirement.
Which standards do the flanges meet?
MDS Petrochemical supplies flanges manufactured and quality controlled to meet ASME, ASTM, BS and DIN/WERKSTOFFE standards.
What are carbon steel fittings used for?
Carbon steel fittings are used to connect, redirect or adapt pipework in systems that handle liquids or gases. They are commonly used across petrochemical, oil and gas, process, power generation and industrial applications where strength and reliability are required.
Can MDS Petrochemical help with related pipework products?
Yes. MDS Petrochemical can also support requirements for butt weld pipe fittings, forged fittings, carbon steel fittings, studbolt fasteners and valves.
Codes of Practice relating to Pipework Systems
At MDS Petrochemical, fittings are supplied to British Standards where required. Click here to see components that may be presented in a piping system.
If you would like to know more about our flanges and carbon steel fittings, please call +44 (0) 1384 270 666 or complete our online enquiry form.