Carbon Steel Flanges in all standard face types and pressure classes to ASTM A105 / A350 LF2. Get quotes from verified suppliers on MetalMitra.
- Carbon Steel Flanges
- Weld Neck
- Slip On
- Blind
- Socket Weld
- Threaded
- Lap Joint
- RTJ
Your details are never shown publicly. The MetalMitra team reviews every requirement.
Specifications
| Specifications | ASTM A105 / A350 LF2, ASTM A694 – F42, F46, F52, F60, F65, F70, A36, A516 Gr. 70,60 |
|---|---|
| Standards | ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc |
| Size | 1/2"NB TO 48 "NB |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND 6,10, 16, 25, 40 |
Grades & standards
- Carbon Steel A105
- ASTM A105
- ASME B16.5
- ASME B16.47
- MSS SP-44
Chemical composition & mechanical properties
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.35 | 0.60–1.05 | 0.035 | 0.040 | 0.10–0.35 |
| Tensile strength, min | 485 MPa |
|---|---|
| Yield strength (0.2%), min | 250 MPa |
| Elongation in 50 mm, min | 22% |
| Hardness, max | 187 HBW |
Single values are maximums unless marked min. Values per ASTM A105 (forgings); always confirm against the purchase specification and the mill test certificate.
Source Carbon Steel Flanges from verified mills, manufacturers and stockists on MetalMitra. Options span all standard face types and pressure classes, produced to ASTM A105 / A350 LF2, and every order can ship with an EN 10204 3.1 certificate.
Carbon Steel Flanges are forged or machined components used to connect pipes, valves, pumps and equipment, allowing easy assembly, inspection and maintenance of piping systems.
Carbon steel is the workhorse of industrial piping: strong, tough, easy to weld and economical for pressure, structural and general engineering duty.
What you can source
- Weld Neck Flanges — Butt-welded flanges for high-pressure and high-temperature service.
- Slip On Flanges — Slip over the pipe for easy alignment and welding.
- Blind Flanges — Solid flanges used to close pipe ends and openings.
- Socket Weld & Threaded Flanges — Compact connections for smaller bore piping.
- Lap Joint Flanges — Used with stub ends for easy alignment.
- Spectacle & RTJ Flanges — Positive isolation and high-pressure sealing.
Key properties
- High Strength — Dependable strength for pressure and structural work.
- Weldability — Welds and fabricates easily in the shop or on site.
- Cost Effective — Cost-effective across a wide range of uses.
- Wide Availability — Available across many sizes, schedules and specs.
Applications & industries
- Oil & Gas
- Petrochemical
- Power Plants
- Water Pipelines
- Structural Engineering
- Construction
- Boilers
- Refineries
- Fertilizer Plants
- General Engineering
- Fabrication
Testing & documentation
Inspection and documentation for Carbon Steel Flanges follow the applicable standard plus any extra requirements in your PO.
- Dimensional inspection
- Visual and surface inspection
- Grade verification against the order
- Chemical composition verification
- Mechanical testing as applicable
- Flange face and bolt-hole inspection
- Non-destructive testing as applicable
- EN 10204 3.1 Mill Test Certificate
- Third-party inspection (TPI) on request
Why source on MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, EN 10204 3.1 MTCs and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Request pricing
Post an RFQ for Carbon Steel Flanges with your drawing or specification and receive quotes from verified suppliers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the mill test certificate.
Applications & industries
- Oil & Gas
- Petrochemical
- Power Plants
- Water Pipelines
- Structural Engineering
- Construction
- Boilers
- Refineries
- Fertilizer Plants
- General Engineering
- Fabrication
- Oil & Gas
- Petrochemical & Refining
- Power Generation
- Chemical Processing
- Water & Wastewater
- Construction & Infrastructure
- Fertiliser
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
Need Carbon Steel Flanges?
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