| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
SA350 LF2 Flanges Manufacturer in India ASTM A350 Grade LF2 Carbon Steel Flanges for Low-Temperature Service
New Era Pipes & Fittings is one of the Best SA350 LF2 Flanges Manufacturer, SA350 LF2 Flanges Pipeline systems require toughness and impact resistance which are highly important factors that lead to the use of low-temperature carbon steel flanges. These flanges are specifically manufactured to work in sub-zero and cold services without cracking and losing their strength. They are normally placed in oil and gas pipelines, LNG facilities, off-shore platforms and in pressure piping systems where fluctuation in temperatures may compromise joint integrity.
We focus on controlled forging, precise machining, and impact testing to ensure dependable performance in demanding environments. Buyers sourcing through a B2B Portal gain access to consistent quality, bulk availability, and flexible customization options. These flanges are often supplied together with Lap Joint Flanges, Slip On Raised Face Flanges, and SA182 Grade F5 Alloy Steel Flanges, allowing smooth integration across different pressure classes and material requirements.
Why These Flanges Are Preferred:
- Excellent impact strength at low temperatures
- Stable mechanical properties under pressure
- Leak-proof connections for critical pipelines
- Wide compatibility with multiple flange types
- Long service life with reduced maintenance
Material, Grades & Applications – SA350 LF2 Flanges
Material Grade | ASTM / ASME Standard | Temperature Range | Typical Applications |
|---|---|---|---|
| Carbon Steel LF2 | ASTM A350 / ASME SA350 | Low & Sub-Zero Temp | LNG pipelines |
| Forged Carbon Steel | ASTM A350 LF2 | Cryogenic Service | Offshore oil & gas |
| Impact-Tested Steel | ASME SA350 | Below 0°C | Chemical processing |
| Pressure-Rated Steel | ASTM A350 | Variable Pressure | Storage terminals |
| Project-Specific Grades | As required | Custom Range | EPC & infrastructure |
The process of strict inspection is conducted to guarantee accuracy in chemical composition, mechanical strength and dimensional accuracy. These flanges are subject to toughness, hardness and impact resistance testing to eliminate brittle failure when working in cold conditions. Surface finish and alignment of bolt holes are done properly and makes installation simple and sealing to be secure.
They are commonly used alongside Slip On Raised Face Flanges for ease of assembly, Lap Joint Flanges for systems requiring frequent dismantling, and SA182 Grade F5 Alloy Steel Flanges where high temperature sections connect with low-temperature lines.
SA350 LF2 Flanges – Product Supplied, Quantity & City
Flange Type | Size Range | Quantity Supplied | Supply City |
|---|---|---|---|
| Weld Neck Flanges | ½″ – 48″ | 188 Pcs | Mumbai |
| Slip On Raised Face Flanges | 1″ – 36″ | 195 Pcs | Ahmedabad |
| Lap Joint Flanges | ½″ – 24″ | 166 Pcs | Chennai |
| Blind Flanges | ½″ – 40″ | 175 Pcs | Pune |
| Custom Flanges |
½″ – 45″ | 168 Pcs | Delhi NCR |
Type of Sub-products

Sa350 Lf2 Weld Neck Flange Sa350 Lf2 Weld Neck Flange
SA350 LF2 Weld Neck Flange is a carbon steel flange with a long tapered hub, designed for low temperature services, offering excellent toughness, strength, and leak proof sealing in high pressure piping systems used in oil, gas, power, and petrochemical industries.

Sa350 Lf2 Blind Flange Sa350 Lf2 Blind Flange
SA350 LF2 Blind Flange is a carbon steel flange used to close the ends of pipelines, valves, or equipment in low temperature services, providing excellent toughness, strength, and leak proof sealing in high pressure applications across oil, gas, power, and petrochemical industries.
