ASTM A350 LF2 Flanges Socket Weld Flange
ASTM A350 LF2 Flanges Carbon Stee Weld Flanges – Socket Weld Flange is a common high-pressure forged flange for cryogenic pipelines. Because of its low temperature resistance, it is widely used in the construction of natural gas and petrochemical pipelines.
ASTM A350 LF2 Flanges Carbon Stee Weld Flanges – Socket Weld Flange
Cangzhou Enfei Pipe Equipment Co., Ltd. is an excellent Carbon Steel ASTM A350 LF2 Flanges manufacturer in China,The Carbon Steel ASTM A350 LF2 Flanges is a product formed by high-temperature and high-pressure forging of the raw material metal round bar or steel plate.
Therefore, the Carbon Steel ASTM A350 LF2 Flanges has high requirements for raw materials. Whether the raw materials are high-quality determines the quality of the Carbon Steel ASTM A350 LF2 Flanges products. Next, the Carbon Steel ASTM A350 LF2 Flanges performance is determined by the heat treatment process.
The Carbon Steel ASTM A350 LF2 Flanges heat treatment temperature is generally between 700 and 1300 degrees Celsius. The heat treatment process determines the low-temperature impact resistance, high-temperature resistance, corrosion resistance Standard parameters such as welding performance and hardness.
As an excellent Carbon Steel ASTM A350 LF2 Flanges manufacturer, Cangzhou Enfei Pipe Equipment Co., Ltd. selects raw materials produced by the best factories in China, including Yongxing special steel, AVIC Shangda, Huaxin Lihua, qingtuo group, Laiwu Iron and steel, Valin Iron and steel, Taiyuan Iron and steel, Shanghai Baosteel, Baosteel and other China’s best steel groups. The above raw material manufacturers have passed ABS and DNV GL, BV, LR, CCS, NKclass, KR, RINA and RS classification societies can issue EN10204 3.2 and EN10204 3.1 material list certificates.
Cangzhou Enfei Pipe Equipment Co., Ltd. focuses on serving global customers. Manufacturing standards include: ASME/ANSI B16.9, ASME/ANSI B16.47, ASME /ANSI B16.48, MSS SP44, ASA, API-605, AWWA, custom drawings DIN2527-DIN2673, EEMUA145 146 234, BS4504, BS1560, BS10, HG/T20592 HG/T20615, GB /T9115-GB/T9119, JIS B2220, JPI-7S-15, etc.
ASTM A350 Flanges products produced by Cangzhou Enfei Pipe Equipment Co., Ltd. have a variety of materials to choose from, including:ASTM A350 LF1, LF2 Classes 1 and Classes 2,LF3 Classes 1 and Classes 2,LF5 Classes 1 and Classes 2,LF6 Classes 1 Classes 2 and Classes 3,LF9,LF787 Classes 2 and Classes 3 .
Product pressure 75LB 150LB 300LB 400LB 600LB 900LB 1500LB 2500LB DIN Standard PN-2.5,6,10,16,25,40,50,64,110,150,250,320,400, and product specification 1/8-72 inch to meet customers’ various choices.
Due to the high standard, good material and many specifications of Carbon Steel ASTM A350 LF2 Flanges provided by our company, we are able to undertake many small, medium and large projects, coupled with our service attitude of resolutely considering for customers, which also makes our customers have a high rate of return.
The contracts signed and delivered come from Europe, Africa, Asia, South America, North America, etc., with a wide range of customer coverage, and have won the unanimous praise of customers. Our company also keeps refining its products to meet the new issues raised in the new era while the rapid development of the times.
Industrial Steel Flanges Test Certificates: Cangzhou Enfei Pipe Equipment Co., Ltd. offer its Products with Third Party Inspection also. The Inspection Agency can be nominated by clients or Dynamic Forge & Fittings can be arrange the TPI by World reputed Agencies like Bureau Veritas, ABS, NKClass,SGS and many other.
ASTM A350 LF2 Flanges manufacturing process diagram
ASTM A350 LF2 Flanges Specification
| Size | 1/2〞（DN15）to 60〞(DN1500) | |||||
| Products | ASTM A350 LF2 Slip-On Flanges,ASTM A350 LF2 Weld Neck Flanges,ASTM A350 LF2 Blind Flanges,ASTM A350 LF2 Lap Joint Flanges,ASTM A350 LF2 Ring Type Joint Flanges,ASTM A350 LF2 Threaded Flanges
ASTM A350 LF2 Socket Weld Flanges,ASTM A350 LF2 Reducing Flanges,ASTM A350 LF2 Plate Flanges, ASTM A350 LF2 Forged Flanges,ASTM A350 LF2 Square Flanges,ASTM A350 LF2 Spectacle Blind Flanges |
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| Class | 150LBS,300LBS,400LBS,600LBS,900LBS,1500LBS,2500LBS. DIN Standard PN-2.5,6,10,16,25,40,50,64,110,150,250,320,400. | |||||
| Flange Face Type | Amerrican Series:Flat face(FF),Raised Face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring Joints Face(RJ) | |||||
| Surface Treatment | Antirust Paint,Oil Black Paint,Yellow Transparent,Zinc Plated,Cold and Hot Dip Galvanized | |||||
| Manufacturing process | Cutting,Heat treatment,Die Forging/Free Forging,CNC Machining | |||||
| Manufacturing Standards | ANSI/ASME B16.5 Flanges,ANSI/ASME B16.47 Flanges,ANSI/ASME B16.36 Flanges，ANSI/ASME B16.48 Flanges ，MSS SP44 Flanges,ASA,API-605 Flanges
AWWA Flanges,Custom Drawings Flanges ，EEMUA145 146 234 Flanges，BS 10 Flanges，DIN Flanges，EN 1092-1 Flanges，BS 4504 Flanges，JIS Standard Flanges |
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| Carbon Steel | ASTM A350 LF1, LF2 Classes 1 and Classes 2,LF3 Classes 1 and Classes 2,LF5 Classes 1 and Classes 2,LF6 Classes 1 Classes 2 and Classes 3,LF9,LF787 Classes 2 and Classes 3 | |||||
A350 Lf2 Class 1 And Class 2 Flange, ASME SA 350 Gr Lf2 Cl1 Flanges Chemical Composition
| Grade | C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
| LF1 | 0.30 max | 0.6-1.35 | 0.15-0.30 | 0.040 max | 0.035 max | 0.30 max | 0.40 max | 0.12 max |
| LF2 | 0.30 max | 0.6-1.35 | 0.15-0.30 | 0.040 max | 0.035 max | 0.30 max | 0.40 max | 0.12 max |
| LF3 | 0.20 max | 0.9 max | 0.20-0.35 | 0.040 max | 0.035 max | 0.30 max | 3.3-3.7 | 0.12 max |
| LF5 | 0.30 max | 0.6-1.35 | 0.20-0.35 | 0.040 max | 0.035 max | 0.30 max | 1.0-2.0 | 0.12 max |
| LF6 | 0.22 max | 1.15-1.50 | 0.15-0.30 | 0.025 max | 0.025 max | 0.30 max | 0.40 max | 0.12 max |
| LF9 | 0.20 max | 0.40-1.06 | … | 0.040 max | 0.035 max | 0.30 max | 1.6-2.24 | 0.12 max |
| LF787 | 0.07 max | 0.40-0.70 | 0.4 max | 0.025 max | 0.025 max | 0.60-0.90 | 0.7-1.0 | 0.15-0.25 |
Carbon Steel A350 LF2 Socket Weld Flange Tensile Properties at Room Temperature
| Grade | Tensile strength [MPa] | Yield strength, min，≥[MPa] | Elongation ≥% | Reduction of area, min,≥% |
| LF1 and LF5 Class 1 | 415-585 | 205 | 25 | 38 |
| LF2 Classes 1 and 2 | 485-655 | 250 | 22 | 30 |
| LF3 Classes 1 and 2 LF5 Class 2 | 485-655 | 260 | 22 | 35 |
| LF6 Class 1 | 455-630 | 360 | 22 | 40 |
| LF6 Classes 2 and 3 | 515-690 | 415 | 20 | 40 |
| LF9 | 435-605 | 315 | 25 | 38 |
| LF787 Class 2 | 450-585 | 380 | 20 | 45 |
| LF787 Class 3 | 515-655 | 450 | 20 | 45 |
A350 LF2 Flanges Tensile Properties Testing
Carbon Steel A350 LF2 Socket Weld Flange Impact Test Temperature |
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| Grade | LF1 | LF2 Class 1 | LF2 Class 2 | LF3 Classes 1 and 2 | LF5 Classes 1 and 2 | LF6 Classes 1 and 2 | LF6 Class 3 | LF9 | LF787 Class 2 | LF787 Class 3 |
| Test Temperature [°C] | -29 | -46 | -18 | -101 | -59 | -51 | -18 | -73 | -59 | -73 |
| Carbon Steel A350 LF2 Socket Weld Flange Maximum Supplemental Test Temperatures | ||||||||||
| Grade | LF1 | LF2 Class 1 | LF3 Classes 1 and 2 | LF5 Classes 1 and 2 | LF6 Classes 1 and 2 | LF9 | LF787 Class 2 | LF787 Class 3 | LF2 Class 2 | LF6 Class 3 |
| Test Temperature [°C] | -23 | -37 | -87 | -51 | -40 | -62 | -51 | -62 | -12 | -12 |
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