MachineU > China Products > Tools & Hardware > Hardware > Flanges
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
Specifications
Brand Name :
YUHONG
Model Number :
ASME SA350 LF2 CL1
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1 PC
Payment Terms :
L/C, T/T
Delivery Time :
7 Days
Packaging Details :
PALLET,PLYWOOD CASE
STANDARD :
ASTM A350 ,ASME SA350
MATERIAL :
LF1,LF2,LF3,LF5,LF6,LF9,LF787
USAGE :
HEAT EXCHANGER PART
TEST :
PT,UT
TYPE :
FORGED
SIZE :
1/2" - 48"
Description

ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange

ASTM A350 is a standard specification for carbon steel and low-alloy steel forgings used for notch toughness testing of pipeline components. This specification covers various products such as forged or ring rolled flanges, forged fittings, and valves made of carbon steel and low-alloy steel, and is particularly suitable for low-temperature environments such as LNG facilities, cold storage, and polar engineering. And a notch toughness test is required. These products are manufactured according to specified dimensions or comply with the size standards specified in the standards.

1. Top Body Flange

Location:

  • Mounted at the upper section of a vessel, tank, or equipment.

Functions:

  • Provides access for inspection, maintenance, or cleaning (e.g., manhole covers).
  • Connects to inlet pipes, vents, or instrumentation (e.g., pressure gauges).
  • Seals the top opening while allowing future disassembly.

Common Types:

  • Blind Flange (seals openings temporarily).
  • Weld Neck/Slip-On Flange (for high-pressure/temperature connections).
2. Bottom Flange
Location:
  • Installed at the lower section of equipment (e.g., tanks, reactors, columns).

​ Functions:

  • Facilitates drainage, sludge removal, or outlet piping.
  • Supports connections to discharge valves, pumps, or piping networks.
  • Often designed to handle sediment/abrasive materials (may include reinforced seals).

Common Types:

  • Slip-On/Threaded Flange (for easy assembly).
  • Orifice Flange (for flow measurement).

Difference:

Feature Top Body Flange Bottom Flange
Purpose Access, venting, instrumentation Drainage, outlet connections
Pressure Typically lower (unless pressurized) Higher (due to fluid head/gravity)
Material Standard (e.g., carbon steel, SS) May be corrosion-resistant (e.g., SS 316)
Sealing Gaskets for easy opening Robust seals (anti-leak design)
Applications
- Top Flange: Reactor lids, storage tank tops, HVAC systems.
- Bottom Flange: Oil/water tanks, chemical reactors, sedimentation basins.
Design Considerations
- Top Flange: Prioritize accessibility and leak prevention.
- Bottom Flange: Focus on durability and resistance to clogging/corrosion.

Item Chemical Req. %
Gr. LF1 Gr. LF2 Gr. LF3
C ≤ 0.30 ≤ 0.30 ≤ 0.20
Mn 0.60~1.35 0.60~1.35 ≤ 0.09
P ≤ 0.035 ≤ 0.035 ≤ 0.035
S ≤ 0.04 ≤ 0.04 ≤ 0.04
Si 0.15~0.30 0.15~0.30 0.20~0.35

Mechanical Properties

Tensile
Requirements		 LF1 and LF5 CL.1 LF2 CL.1 and 2 LF3 CL.1 and 2,LF5 CL.2
T.S min.
ksi [Mpa]		 60~85
[415~585]		 70~95
[485~655]		 70~95
[485~655]
Y.S min.
ksi [Mpa]		 30
[205]		 36
[250]		 37.5
[260]

ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange

Send your message to this supplier
Send Now

ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange

Ask Latest Price
Product Detail
Brand Name :
YUHONG
Model Number :
ASME SA350 LF2 CL1
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1 PC
Payment Terms :
L/C, T/T
Contact Supplier
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange
ASME SA350 LF2 CL1 Heat Exchanger Parts Top Body Flange Bottom Flange

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Steel Flange
MachineU China Products Tools & Hardware Hardware Flanges
Contact Supplier
Submit Requirement