ASTM A350 LF3 Alloy Steel Weld Neck Flange 48 Inch Size Sch10S to Sch160 for Low Temperature Applications
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 - 60 working days
Brand:
Kasugai
Product Description
Product Overview
ASTM A350 LF3 alloy steel weld neck flanges designed for low-temperature applications requiring superior notch toughness. Available in sizes from 1/2" to 48" with pressure classes ranging from 75 to 2500.
Technical Specifications
| Size Range | 1/2" to 48" |
|---|---|
| Pressure Class | 75, 150, 300, 400, 600, 900, 1500, 2500 |
| Thickness | Sch10S to Sch160 |
| Standards | ASME/ANSI B16.5/B16.47, JIS B2220 |
| Type | Weld Neck (WN) |
| Coating Options | Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized, Yellow Transparent, Zinc Plated |
Material Properties
Chemical Composition - ASTM A350 LF3
| Element | C,max | Mn | Si | P,max | S,max | Cr,max | Mo,max | Cu,max | Nb,max | V,max |
|---|---|---|---|---|---|---|---|---|---|---|
| Content | 0.2 | 0.90 | 0.2-0.35 | 0.035 | 0.040 | 0.30 | 0.12 | 0.40 | 0.02 | 0.03 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Reduction of Area (%) |
|---|---|---|---|---|
| Value | 485-655 | 260 | 30 | 35 |
Impact Testing Requirements
Charpy V-notch impact testing conducted at -150°F [-101°C] with minimum energy requirements:
- Class 1: 15 ft·lbf [20 J] average, 12 ft·lbf [16 J] minimum
- Class 2: 20 ft·lbf [27 J] average, 15 ft·lbf [20 J] minimum
Weld Neck Flange Types
Standard Weld Neck Flanges
Designed to transfer stress to pipes, reducing high-stress concentration at flange base. Available in two designs for pipe and process plant applications.
Long Weld Neck Flanges (LWN)
High-hub flanges that transfer stress to pipes while minimizing stress concentration. Ideal for pressure vessel nozzles, eliminating additional welding requirements.
Reducing Weld Neck Flanges
Features a reducing diameter neck for welding to smaller pipes. Provides space-saving advantages in crowded installations compared to traditional reducer fittings.
Manufacturing Process
Manufactured through precision forging processes to ensure optimal material properties and dimensional accuracy for demanding industrial applications.
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Company
Kasugai Shanghai Co., Ltd.
Location
Rm.8415, Bldg. A8, No. 808 Hongqiao Road, Xuhui District, Shanghai 200030, Chia
Contact Person
Chovy kasugai