Specifications
Brand Name :
TOBO
Model Number :
ASTM A403 Grade WPS31254
Certification :
BV/ABS/LR/TUV/DNV/BIS/API/PED
Place of Origin :
CHINA
MOQ :
0.5-1 tons
Price :
negotiable
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
7500 tons per year
Delivery Time :
According to the qty
Packaging Details :
in plastic bags then in bundles
Thickness :
standard schedule
Surface :
As customer's requirement
Type :
blind,weld neck flange,threaded,Pipe Flange,socket welding
Pressure :
Class150/300/600/9001500/2500,Class150,150#-2500#
Color :
Customer's Requirement
Size :
Customized Size
Name :
Flanges
Packing :
inner poly bag,Plastic Bag+Carton,plywood case or pallet,According customer's requesment
Description

4"FLANGE, BL, FF, CL150LB ASME B16.5, THICKNESS 80S,Steel CNC Machining Double Blind Flange,ASTM A350 LF1

Grades of ASTM A350 Carbon Steel Flanges

ASTM A350 LF1 Flange

The ASTM A350 Grade LF1 Flange is a material specification for carbon and low alloy steel forgings that calls for notch toughness testing on piping components. Forged flanges, fittings, valves, and other forged and machined parts are included. Chemical structure, mechanical properties, and impact tests for notch durability are all covered in this specification.

ASTM A350 LF2 Flange

The ASTM A350 LF2 is a forged carbon/low-alloy steel grade of forged flanges, forged fittings, and forged valves that are intended for low-temperature operation and must pass notch durability inspection. The LF2 steels are divided into two classes: Class 1 and Class 2.

ASTM A350 LF3 Flange

Flanges made to ASTM A350 LF3 requirements can withstand temperatures as low as 150 degrees Fahrenheit (LF3.) These ASTM A350 LF3 Flanges are primarily used in high-energy/high-temperature channeling applications. All ASTM A350 LF3 Flanges are available with either a raised face or a flat face. At ambient temperature, the working pressure for a B16.5 ASTM A350 LF3 Flange is approximately 2.4 times the Flange Class.

ASTM A350 LF1 LF2 LF3 Carbon Steel Flanges Chemical Composition

Element Weight %
Carbon 0.08 – 0.15
Silicon 0.15 – 0.50
Manganese 0.30 – 0.60
Phosphorus 0.025 max *
Sulfur 0.025 max *
Molybdenum 0.90 – 1.10
Chromium 2.00 – 2.50
Nickel 0.5 max

ASTM A350 LF1 LF2 LF3 Carbon Steel Flanges Mechanical Properties

Property Values
Ultimate Tensile Strength * 95 min Ksi (655 Mpa)
0.2 % Yield Strength * 75 min Ksi (517 Mpa)
Elongation * 17 % min
Reduction of Area * 35 % min
Charpy Impact Toughness 42 mean/ 33 min J at –18o C
Hardness 197 – 237 BHN (75 Ksi min)

Carbon Steel ASTM A350 LF1, LF2, LF3 Flanges Specifications, Sizes

Specifications ASTM A350 LF2 / ASME SA350
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size Range 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000, as per Customer Requirements
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Surface pickling, annealing, bright, sandblast, hairline
Type Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 WNRF Flanges, Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 Blind Flanges, Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 Threaded Flanges, Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 Slip On Flanges, Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 Blind Flanges, Carbon Steel A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2 Lap Joint Flanges
Connection type Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large Tongue, Groove, Small Tongue, Groove.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

ASTM A350 LF1 LF2 LF3 Carbon Steel Flanges Dimensions

Nominal Pipe Size Flanges Inside Diameter (ID)
(inch)
Flanges Outside Diameter (OD)
(inches)
Class 150 Class 300 Class 400 Class 600 Class 900
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

ASTM A350 LF1 LF2 LF3 Carbon Steel Flanges Related Types

ASTM A350 LF1 LF2 LF3 Carbon Steel Flanges Types

Product Size
A350 LF1, LF2, LF3 LTCS Slip-On Flanges A350 LF1, LF2, LF3 LTCS Threaded Flanges 1/2″ – 48″
Raised Face or Flat Face
A350 LF1, LF2, LF3 LTCS Blind Flanges A350 LF1, LF2, LF3 LTCS Reducing Flanges
A350 LF1, LF2, LF3 LTCS Lap Joint Flanges A350 LF1, LF2, LF3 LTCS Plate Flanges
A350 LF1, LF2, LF3 LTCS Weld Neck Flanges A350 LF1, LF2, LF3 LTCS Socket Weld Flanges

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-We usually quote within 24 hours after we get your inquiry(Except weekend and holidays).
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2. Can I buy samples placing orders?
-Yes.Please feel free to contact us.
3.What is your lead time?
-It depends on the order quantity and the season you place the order.
-Usually we can ship within 7-15 days for small quantity,
and about 30 days for large quantity.
4.What is your payment term?
-T/T,Western Union,MoneyGram,and Paypal.This is negotiable.
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-It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).
Please confirm with us before placing orders.
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4"FLANGE, BL, FF, CL150LB ASME B16.5, THICKNESS 80S,Steel CNC Machining Double Blind Flange,ASTM A350 LF1

Ask Latest Price
Brand Name :
TOBO
Model Number :
ASTM A403 Grade WPS31254
Certification :
BV/ABS/LR/TUV/DNV/BIS/API/PED
Place of Origin :
CHINA
MOQ :
0.5-1 tons
Price :
negotiable
Contact Supplier
4FLANGE, BL, FF, CL150LB ASME B16.5, THICKNESS 80S,Steel CNC Machining Double Blind Flange,ASTM A350 LF1
4FLANGE, BL, FF, CL150LB ASME B16.5, THICKNESS 80S,Steel CNC Machining Double Blind Flange,ASTM A350 LF1
4FLANGE, BL, FF, CL150LB ASME B16.5, THICKNESS 80S,Steel CNC Machining Double Blind Flange,ASTM A350 LF1

TOBO STEEL GROUP CHINA

Verified Supplier
11 Years
shanghai, shanghai
Since 1998
Business Type :
Manufacturer, Agent, Importer, Exporter, Trading Company, Seller
Total Annual :
100000-100000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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