ASTM A350 LF2 Carbon Steel Flange
GNEE is a leading manufacturer and supplier of various ASTM A350 LF2 weld neck flange sizes and types. Material components include carbon, silicon, manganese, phosphorus, sulfur, molybdenum, copper, chromium, nickel, vanadium and niobium.
This A350 LF2 steel flange is made from low temperature carbon steel and specifically meets ASTM A350 specifications to operate at low temperatures. The minimum tensile strength of carbon steel A350 LF2 high-strength flange is 485MPa and the minimum yield strength is 250MPa. The material is also very hard, with an HB Brinell hardness of 197.
ASTM A350 LF2 cryogenic flanges are normalized to obtain a good grain structure and are used in hydrocarbon, steam and general industrial applications operating at sub-zero temperatures such as light and heavy chemical manufacturing plants.
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A350 Class LF2 flange Product information
ASME SA 350 GR LF2 Weld Neck Flange Specification List
| Size | 1/2" TO 4" |
| Range | 15 NB TO 100 NB IN 3000 LBS, 6000 LBS, 9000 LBS |
| Grade | ASTM / ASME A105/ A105N/ A694 F42/46/52/56/60/65/70 / A350 LF3/ A350 LF2 |
| Pressure Rating | 2000#, 3000#, 6000#, 9000# |
| Class | 150#, 300#, 400#, 600#, 900#, 1500# & 2500#. |
| Type | Socketweld Fittings, Screwed-Threaded Fittings |
Carbon Steel A350 LF2 Slip On Flanges Chemical Composition
| Grade | C% | Mn% | Si% | S% | P% | Cr% | Ni% |
| LF1 | 0.30 max | 0.6/1.35 | 15/30 | 0.40 max | 0.35 max | 0.30 max | 0.40 max |
| Lf2 | 0.30 max | 0.6/1.35 | 15/30 | 0.40 max | 0.35 max | 0.30 max | 0.40 max |
ASTM A350 LF2 Mechanical Properties
| Grade Of ASTM A350 LF2 Flanges | Tensile Strength | Yield Strength, (minimum) | Elongation, (minimum) | Hardness, (maximum) | ||
| ksi | MPa | ksi | MPa | % | HBW | |
| LF2 Class 2 Flanges | 70–95 | 485–655 | 36 | 250 | 22 | 197 |
| LF2 Class 1 Flanges | 70–95 | 485–655 | 36 | 250 | 22 | 197 |
ASTM A350 LF2 Blind Flange
Why choose us
GNEE has 14 steel production lines and 10 processing equipments for machining, bending, painting, heat treatment, cutting, drilling, bevelling, tempering and surface treatment. We have complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tonnes including all kinds of carbon steel flanges.
Gnee Company Team
FAQ
1.Q: What are your advantages?
A: Honest business, competitive price and professional export process service.
2.Q: Can your products be customised?
A: Yes, we can produce and process flanges according to your requirements.
3. Q: Do you have quality control system?
A: Yes, we have our own quality control laboratory.
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